I have the Onkyo A-9555 Integrated Amp. Onkyo is marketing this as a high-end sound. I have to say I am very impressed with the sound quality. It is far better than the Panasonic SA-XR series digital receivers. With the Onkyo A-9555 it gives high-end sound, large wide sound stage, lots of power. Has the resolution, authority, detail, and smoothness of the best anolog amps costing for more.

It's a two channel only. It's rated at 100 watts per channel @ 8ohms, and 200 watts per channel @ 4 ohms. It can fill a very large room with plenty of superb sound. The reviews and user opinions have been excellent and positive on this amp. Anyone thinking about an excellent quality 2-channel music setup should really consider the Onkyo A-9555. It's very smooth with no harshness or ear fatigue, yet very detailed and dynamic. I'm still amazed by it's sound quality, it's as good as my much more expensive equipment!!!!

Looks like they've been selling out of the Onkyo A-9555, several places are SOLD OUT and out of stock. With that many being sold, you would think there would be more user reviews on the Onkyo A-9555 but looks like most people are not taking the time to share their review on the Onkyo A-9555 :(

They are wonderful sounding bought about 4 months ago. Great classic looks and fairly powerful. They were powering my vintage Advents. Decent on phono. Recommended!

I agree...Amazing amp! I love mine too! http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1162244234&read&3&4&

How does this Onkyo compares to other PWM amps?

Kinda looks like Teac A-1D... wonder is they sound similar as well.

I have the Onkyo A-9555 Integrated Amp. ....... I'm still amazed by it's sound quality, it's as good as my much more expensive equipment!!!!

audiocvk, what source equipment are you using? and what speakers are you driving with the a9555? cheers, ed

Kinda looks like Teac A-1D... wonder is they sound similar as well.

I believe the A-1D is not a digital amp. From what I remember reading in Audio Circle a couple of years ago, it is MosFet based. It used to be sold at various big box net retailers such as Amazon, J&R, etc. I think the A-1D is not discontinued.

Here are some internal pics of the Onkyo A-9555. Inside Views.

edbayarea, I've tried a number of different speakers and source equipment with the Onkyo A-9555 and I haven't found anything it doesn't sound good with yet. At this moment, I have it setup with the Rotel RCD-1072 CD-Player and a pair of B&W N802 speakers. I've still been in the comparing and testing mode with the Onkyo A-9555. So far so good, seems every one that listens to it thinks it sounds wonderful here.

audiocvk, great, thanks! I looked up the n802s, at 91dB -8ohms they seem like a good match for the 9555. I am keeping the 9555 on my list for a friends system. -ed

well, count me in as a believer too. i doubled my pleasure by getting both the amp and the matching dx-7555 cd player and i am enjoying them thru my quad 11L's. i had the new marantz pm7100 from crutchfield before the onk, but sent it back. too warm sounding, almost emulating the sound of a tube amp in the mid/high frequencies. i'm sure some people will like this sound, but not me on the quad's. the onkyo has a clearer, more neutral sound with tighter bass than the marantz did on the quad's. i can't recommend these components enough.

got'em both in silver at shoponkyo.com. unfortunately i did not get a discount price except for $10 dollars off for joining there as a member. however i did get "points" from buying thru them that i can use towards a future onkyo purchase at that site. i think i have 74 points(or dollars).......... woohoo!

regards,
Paul

Congrats on your new amp! Let us know how you are enjoying it after it breaks in some more. Read your nice review on the Marantz over at audioreview.com but didn't see you do one on the Onkyo A-9555 there, as you get more used to the A-9555 we would love to read your review on it over at audioreview.com when you find the time. :) As much as the Onkyo A-9555 keeps selling out, there is only 1 review at:

http://www.audioreview.com/mfr/onkyo/integrated-amplifiers/MPL_715_2717CRX.ASPX

Seems like more people would review it with how many have been sold!

There is another review (http://www.amazon.com/Onkyo-Integrated-Digital-Stereo-Amplifier/dp/B000J0ORMS/) at amazon.com, the user has it in VPI turntable system. :)

Anybody using this with Zune, iPod, or other MP3 player as input? I'm thinking of driving some Dali Ikon On-wall's in my living area (music only, HT is downstairs), plus maybe a couple of outdoor speakers for the backyard.

There was a shootout at Stereomojo testing this amp along with others. Google for link good information. This amp placed second of the ones tested. You will be surprised what amp one the final shootout.

How does this compare to normal receivers in terms of sound quality? lets say a pioneer elite 82txs?

anyone? or maybe compared to other integrated amps such as cambridge/nad of the near price.

Does anyone think the larger A-9755 can be internally re-wired to change the voltage setting from AC 220-230 V, 50/60 Hz to AC 120 V, 60 Hz? It sure would be nice to have the reserves of the two power supplies on hand.

Can anyone elucidate the benefits of digital amplification vs. analog? I have to say, the A-9555 is at the top of my list right now.

I have never heard any Onkyo audio product that I was not impressed with, with the exception of speakers. Their stuff is generally quite good, especially for the price.

Can anyone elucidate the benefits of digital amplification vs. analog? I have to say, the A-9555 is at the top of my list right now.Digital amplifiers are much more efficient than traditional analog amplifiers. They are much lighter, generate much less heat, and because of the technology, they are generally smaller than their comparable analog counterparts. The sound quality is improved because all processing and amplification is done in the digital domain. This eliminates the digital to analog conversion necessary prior to processing and amplification when an input device, such as a DVD/CD player, is connected digitally to an analog amplifier. With a digital amplifier and a digitally connected device, the only digital to analog conversion necessary occurs directly at the speaker output terminals. This results in much cleaner output than can be achieved with comparably priced analog amplifiers.

Beware of amplifiers that are advertised as digital amplifiers that lack a digital input. This ONKYO amplifier is one such device. It has no digital input, only analog, and therefore it is NOT a true digital amplifier. It is simply a Class "D" amplifier.

With a "digital" amplifier that has no digital input, the signal from a DVD/CD player, for example, that is connected via an analog connection has already gone through processing and a digital to analog conversion in the DVD/CD player in order for it to output an analog signal. Then, at the "digital" amplifier, this analog signal must go through an analog to digital conversion before the amplifier's "digital" amps can amplify it. And finally there is the final digital to analog conversion before the signal can be output to the speakers.

Even with a conventional analog amplifier, the signal from a DVD/CD player that is connected via an analog connection only goes through processing and the single digital to analog conversion that is necessary at the DVD/CD player.

Buyer beware. Do your homework. All of this info is out there on the web. Many manufacturers sell amplifiers that they advertise as "digital" yet they only have analog inputs. These manufacturers are, basically, if you want to get right down to it, misleading consumers. Unless a "digital" amplifier has digital input(s), it's not truly digital and is simply a Class "D" amplifier. This is not to say that these products are not decent amplifiers, but unless the input signal is digital and remains digital throughout the processing and amplification stage, the amplifier is not truly a digital amplifier.

Digital amplifiers are much more efficient than traditional analog amplifiers. They are much lighter, generate much less heat, and because of the technology, they are generally smaller than their comparable analog counterparts. The sound quality is improved because all processing and amplification is done in the digital domain. This eliminates the digital to analog conversion necessary prior to processing and amplification when an input device, such as a DVD/CD player, is connected digitally to an analog amplifier. With a digital amplifier and a digitally connected device, the only digital to analog conversion necessary occurs directly at the speaker output terminals. This results in much cleaner output than can be achieved with comparably priced analog amplifiers.

Beware of amplifiers that are advertised as digital amplifiers that lack a digital input. This ONKYO amplifier is one such device. It has no digital input, only analog, and therefore it is NOT a true digital amplifier. It is simply a Class "D" amplifier.

With a "digital" amplifier that has no digital input, the signal from a DVD/CD player, for example, that is connected via an analog connection has already gone through processing and a digital to analog conversion in the DVD/CD player in order for it to output an analog signal. Then, at the "digital" amplifier, this analog signal must go through an analog to digital conversion before the amplifier's "digital" amps can amplify it. And finally there is the final digital to analog conversion before the signal can be output to the speakers.

Even with a conventional analog amplifier, the signal from a DVD/CD player that is connected via an analog connection only goes through processing and the single digital to analog conversion that is necessary at the DVD/CD player.

Buyer beware. Do your homework. All of this info is out there on the web. Many manufacturers sell amplifiers that they advertise as "digital" yet they only have analog inputs. These manufacturers are, basically, if you want to get right down to it, misleading consumers. Unless a "digital" amplifier has digital input(s), it's not truly digital and is simply a Class "D" amplifier. This is not to say that these products are not decent amplifiers, but unless the input signal is digital and remains digital throughout the processing and amplification stage, the amplifier is not truly a digital amplifier. Good to know-- thanks.

Beware of amplifiers that are advertised as digital amplifiers that lack a digital input. This ONKYO amplifier is one such device. It has no digital input, only analog, and therefore it is NOT a true digital amplifier. It is simply a Class "D" amplifier.

I noticed that and wondered about it. Given that the amplifier will convert the signal to digital anyhow, the lack of a digital input seems very strange. I would call it a design flaw, which is disappointing from Onkyo. :(

Given that the amplifier will convert the signal to digital anyhow, the lack of a digital input seems very strange.Yeah, it's weird. Many manufacturers, even some that are considered pretty high-end, are sellling Class "D" amps that have no digital input and calling them "digital amplifiers". I don't understand it, either. It seems that it would be simple enough to add a digital input or two since any digital input would not require a D/A conversion, as analog input does on these amps, and should just go straight into the amps as a digital signal.

The Class "D" amps without digi inputs are not bad products at all and most of the benefits I listed above ARE there. They just lack digi inputs, so the benefit of keeping the signal completely digital until the final D/A conversion (which, btw, since it's a speaker-level analog signal that's needed, is actually part of the amp's technology, and doesn't require a DAC at that point) can't be realized. What's REALLY interesting is that it actually costs less to manufacture a Class "D" amp than to manufacture a comparable quality analog amp.

Someone should fire off an email to ONKYO, see what they say. (Maybe I'll do it. I'm curious; there has to be a reason.)

Strange. I went to the ONKYO site today and the A-9755 isn't even listed as an available product. :confused:

Strange. I went to the ONKYO site today and the A-9755 isn't even listed as an available product. :confused:
It is the A-9555.

http://www.onkyousa.com/model.cfm?m=A-9555&class=Amplifier&p=i

BTW, I pondered this, and for my system, I would be using the A-9555 as a 2nd/3rd Zone amp that is fed by my Denon 3805. The 3805 is not capable of sending a digital signal to these zones, so whatever amp I use, it has to accept analog. So for me, what matters is the sound quality. If the amp has to convert the analog input to digital before amplification, and I'm not clear to what the benefit of the digital amplification would be in this case.... Nonetheless, most of the reviews I've read say very good things about the A-9555 so they must be doing something right...

Strange. I went to the ONKYO site today and the A-9755 isn't even listed as an available product. :confused:

I think the A9755 is only in UK...

http://www.eu.onkyo.com/indices/index_com_en_53538.html

I think the A9755 is only in UK...Hmmmm. I thought I saw it both of them on the US site a couple of days ago. Maybe I was on the wrong site.

BTW, I pondered this, and for my system, I would be using the A-9555 as a 2nd/3rd Zone amp that is fed by my Denon 3805. The 3805 is not capable of sending a digital signal to these zones, so whatever amp I use, it has to accept analog. So for me, what matters is the sound quality. If the amp has to convert the analog input to digital before amplification, and I'm not clear to what the benefit of the digital amplification would be in this case.... Nonetheless, most of the reviews I've read say very good things about the A-9555 so they must be doing something right...Yeah, basically, since you aren't going to be sending it a digital signal anyway, that it doesn't have a digital input is irrelevant. I wouldn't get too hung up on the A/D conversion that's necessary; you don't really have a choice.

What perturbs me about these "digital" amps that lack a digital input is not so much that there is the A/D conversion with an analog connected device, but that a consumer who does have a device equipped with a digital output is unable to use it to their advantage, is given no choice at all, and is forced to use an analog connection.

BTW, I submitted a customer query to ONKYO regarding the lack of a digital input and am awaiting their response.

Yeah, basically, since you aren't going to be sending it a digital signal anyway, that it doesn't have a digital input is irrelevant. I wouldn't get too hung up on the A/D conversion that's necessary; you don't really have a choice.

BTW, I submitted a customer query to ONKYO regarding the lack of a digital input and am awaiting their response.

That was my thinking as well- the digital input is a non-issue for me. I'm pretty curious to hear how it sounds. I went ahead and ordered it from B&H. I'll write a report when I rec'v it and hook it up. Let us know what you hear from Onkyo.

Let us know what you hear from Onkyo.They wrote back yesterday and asked which amplifier I was considering. WTF? :confused: How many digital amplifiers do they offer and why does "which one I'm considering" have anything to do with why the only ONE (two if you include the 9755) they offer doesn't have digi inputs? :rolleyes:

My A-9555 arrived today. I haven't had lots of time to listen, but here are my initial observations:

- It is a large amp-- looks impressive in the rack.
- Front panel layout is very clear, easy to access and intuitive. I like the cobalt blue light which shows where the volume is set
- Power is more than ample to drive my ceiling speakers in the living room (BA 8-inch woofer+ 3inch mid+ tweeter) and outdoor Polk deck speakers.
- Bass performance is excellent. Bass presence, extension and tightness are very good-- better than the 1988 NAD 3240 it replaced and better than my Denon 3805 (maybe the extension isn't as quite as deep as the Denon with a subwoofer, but the bass is more clear, tight and present with the Onkyo.)
- High freq performance was also very good. Snare drums on Norah Jones tracks that I hadn't noticed before were quite clear. The alto trumpet on Donald Fagen Pagoda of Funn was clear and vibrant.
- Mid range was good. The NAD (may it RIP) probably had clearer mid range than the Onkyo, but I'm not complaining.
- Tone controls and loudness are effective and easy to use in getting to the right tonal balance for my ears
- Overall for the purpose I'm using it for- to drive a 2nd/3rd zone, it is very good solution and the price I think is attractive for the performance-- $499 at B&H. Would I have preferred an NAD, maybe, but when you have to go to $800-900 to get A+B speaker outs on an NAD integrated, that is too much for the purpose I had in mind for this amp.

I'll try to add more later after I've had more time to listen.

Anymore reviews of this amplifier? Thanks.

the latest issue of Stereophile has a glowing review of the A-9555. i've only skimmed it, but what it seemed to say was that they preferred it over the Flying Mole CA-S10 integrated ($2000) and it nearly matched up to the PS Audio GCC-100 ($2795, class A recommended component).

i find Stereophile reviews to be of limited use, considering they seem to almost always stick to the same storyline with budget gear ("it's great for its price! but it's not quite as good as the stuff that costs more!")...

having said that, i'm shopping for a new integrated ($1000-$1500), and this review definitely has put the A-9555 on my list.

After two weeks with my Onkyo A-9555, I'm very pleased. In my post above, my only minor complaint was that the mid-range did not sound quite as crisp as the amp it replaced, however, I have found that the mid range has either become more clear with break-in (how much does a Class D amp benefit from break-in??) or the music I'm listening to suits the Onkyo better than what I was listening to the first day, either way, I'm thoroughly happy with this amp and at $499 at B&H, I'm thrilled.

There was a shootout at Stereomojo testing this amp along with others. Google for link good information. This amp placed second of the ones tested. You will be surprised what amp one the final shootout.

Interesting read. I wonder how the good old sonic t-amp would have held up.
I also wonder how a good old fashion analog amp would have compared.

ONKYO never got back to me regarding the lack of digital input. :rolleyes:

ONKYO never got back to me regarding the lack of digital input. :rolleyes:

none of the high-end Class D amps have direct digital input. the switching amp people are talking about that uses dig-in is the panasonic XR A/V series. even the also-ran JVC "hybrid feedback" receivers sounded better through the analog ins.

i have one on the way and will post my results when it arrives.

none of the high-end Class D amps have direct digital input. the switching amp people are talking about that uses dig-in is the panasonic XR A/V series. even the also-ran JVC "hybrid feedback" receivers sounded better through the analog ins.
As I said in my Post#22 (http://www.avsforum.com/avs-vb/showpost.php?p=11175532&postcount=22):

"Beware of amplifiers that are advertised as digital amplifiers that lack a digital input. This ONKYO amplifier is one such device. It has no digital input, only analog, and therefore it is NOT a true digital amplifier. It is simply a Class "D" amplifier."


"Digital" amplifiers with no digi input are "hybrids" and are not true digital amplifiers.

And there ARE high-end "digital amplifiers" with digital inputs.


This is my understanding, anyway. Please, straighten me out if I am incorrect.

not many---used to be a 10k sony integrated years ago when the tech was new as i recall. class D and its many forms is what today constitutes a "digital" amp

that said, i'm not sure a digital input is that important these days on the amp side. i've owned nuforce class D amps (which i'm downsizing from) and they are truly spectacular.

class D and its many forms is what today constitutes a "digital" amp
Simply being a Class-D amp does not make an amp digital. And, no, the "D" does not stand for digital.

"A switching amplifier or class-D amplifier is an electronic amplifier where the active devices (especially in the output stage) are operated in on/off mode (i.e., as switches). The term "Class-D" is often assumed to mean "digital" amplifier, which is not correct. The quantization of the output signal at the power stage can be controlled by either an analog signal or a digital signal, in the latter case you could argue that you have full digital amplification."

link (http://en.wikipedia.org/wiki/PWM_amplifier)




".................PWM amps are sometimes erroneously referred to as digital amps."

"Everyone thinks that “Class-D” stands for “Digital”. I hope that after reading this article, no-one thinks that any more."

link (http://sound.westhost.com/articles/pwm.htm)



that said, i'm not sure a digital input is that important these days on the amp side.Sure it is. If you want to keep everything in the digital domain.
Again, if an amp doesn't have digital input(s), it's not truly a digital amp, and is simply a "Class D" (or some other letter of the alphabet) amp.



"A digital amplifier takes a digital input, which is typically in a linear Pulse Code Modulation (PCM) format, and performs a digital conversion (via a number of steps, described below) to Pulse Width Modulation (PWM). The PWM modulator drives switching FETs to produce a high voltage switched signal, which is then filtered to reproduce the original audio input."

link (http://www.wirelessnetdesignline.com/199000271?cid=RSSfeed_wirelessnetdesignline_wndlRSS)




"Whats a Pure Digital Audio System?"

"Pure digital systems are digital amplifiers with digital inputs being fed by digital source material from the digital output from a DVD ,CD Player, Satellite Receiver or Cable Box. In pure digital systems the audio signal is always kept in the digital form, so there is no degradation on the signals as it goes through each stage of the various pieces of electronic equipment in its path between the source to the loudspeaker. Digital signals have no degradation effect when passing through electronic components as do the fragile analog signals."

link (http://www.puredigitalaudio.org/digitalamplifiers/faqs/WhatsAPureSys.shtml)




"I just saw a digital amplifier at the store but it only had analog inputs on it how can they call it digital?"

"There are several companies manufacturing amplifiers or products with amplifiers in them that may be fooling the public by calling them digital amplifiers. It may not be totally their fault. One manufacturer of supposedly "digital amplifier" chips actually sells hybrid digital amplifiers that only have analog inputs and have Analog to Digital Converters built in so they produce inherently NON Pure Digital audio. Yet they are marketed as "Digital". This is confusing for consumers. Beware of amplifiers calling themselves "digital" that have only analog audio input facilities and no digital inputs at all."

link (http://www.puredigitalaudio.org/digitalamplifiers/faqs/HowCanTheyCallIt.shtml)

look, i don't care about symantics and its not important. look- i'm just saying digital doesn't mean pure digital these days. protecting the consumer on this point may be valiant, but not really important. class D is designed because audiophiles could care less about digital inputs in general.

and why would i want to keep everything in the digital domain for 2 channel? i'd rather use my high end cd player's dac then some crappy dac in a receiver, integrated, whatever. at somepoint the speaker has to receive an analog signal and i don't trust Panasonic to do that for me. i actually used to have a Wadia 861 for all digital inputs and volume control directly to a pair of active speakers for example.

looking at your system, you clearly aren't a two-channel guy so i understand.

i wont even get started on the merits of a full analog system or the benefit of tubes :)

and why would i want to keep everything in the digital domain for 2 channel? i'd rather use my high end cd player's dac then some crappy dac in a receiver, integrated, whatever. at somepoint the speaker has to receive an analog signal and i don't trust Panasonic to do that for me. i actually used to have a Wadia 861 for all digital inputs and volume control directly to a pair of active speakers for example.If it is kept digital it NEVER has to pass through a DAC in the traditional sense. The final conversion to analog is built into a digital amp's design. The signal is literally converted to analog at the speaker binding posts.




looking at your system, you clearly aren't a two-channel guy so i understand.

i wont even get started on the merits of a full analog system or the benefit of tubes :)
snooty pants :p

You can sing the praises of "Class D" amps all you want. Just don't call them "digital" unless they have digital inputs. They're "Class D" amps. What's so difficult about that? BTW, I never detracted from them at all.

Well, when one DAC costs 8.95 in large lots and the other one costs $2 more but allows you to eliminate circuitry, which one is the cheap DAC?

for what it's worth, the Stereophile review is now online (http://www.stereophile.com/integratedamps/907onk/).

Thank god he had a hi-fi tuning fuse to put in!

Thank god he had a hi-fi tuning fuse to put in!

i know, i almost puked on my magazine when i read that.

I don't know how much effect that has on performance, but shouldn't reviewers be evaluating bone stock equipment?

I don't know how much effect that has on performance, but shouldn't reviewers be evaluating bone stock equipment?

well, technically it's for comparison's sake, since the PS Audio amp he compared it against also had a voodoo tuning fuse.

Has anyone tried replacing the fuse with a HiFi-Tuning fuse? I read on the stereophile site that the sound becomes even more clear.

http://www.stereophile.com/budgetcomponents/907onk/index.html

Nicky, it ain't gonna happen.

Has anyone tried replacing the fuse with a HiFi-Tuning fuse? I read on the stereophile site that the sound becomes even more clear.

http://www.stereophile.com/budgetcomponents/907onk/index.html

that is the voodoo we're talking about. how a fuse could affect the sound is beyond me.

Well, PS Audio's position is that it's largely due to the dampening of vibrations due to current flow through the wire.

Well, PS Audio's position is that it's largely due to the dampening of vibrations due to current flow through the wire.

yes, well... wouldn't want to jostle those electrons.

I have Panasonic digital XR models and the Onkyo A-9555 beats them, just as the shoot out stated when the Panasonic lost in the first round.

I would not get hung-up on Digital vs. RCA inputs. I have spent much testing on RCA and Digital Inputs on my digital amps and "I can hear NO DIFFERENCE" on any of them, even when I put them on highly revealing Klipschorn's speakers...... I still here no difference and the Klipschorn's aways reveals where my other speakers don't.

Forget the worry about digital vs. RCA inputs, it's a waste of worry. I use the RCA inputs now on all my equipment.

I am still very pleased with the Onkyo A-9555 performance and have had mine for some time now.

The fuse doesn't do a thing for sound, sounds the same as stock. Stereophile has been doing these little sales tips like this with different equipment who pays them adv. dollars. They should stick with stock reviews but money talks and so they aren't keeping it pure anymore.

Enjoy your new Onkyo A-9555! The Onkyo A-9755 is only available in the UK. I've asked Onkyo about supplying the A-9755 to the USA as well but they have told me they have no plans in doing so, they do not think the Americans will have the appreciation for it. They will see how the A-9555 does in the USA. The A-9555 has 1 transformer and the A-9755 has 2 transformers.

The UK rep is right. The Americans don't appreciate two-channel sound anymore. The vast majority seem to appreciate surround sound in a box, or a $3,000 1080p Lcd or plasma with a $500.00 audio system.

I am completely baffled by this. Our choices for two channel gear in the US are abysmal. Thanks to Onkyo for giving us something to choose from, although how many retailers actually stock the A-9555?

Living spaces are signficantly smaller than in the US which can be a factor.

I live in the US. I still listen to mostly two channel. Why? Because most of the music I listen to was recorded in two channel (and my two channel system is better than my 5 channel). Onkyo might be right though, many Americans seem to be more video oriented than audio oriented - don't know why, and don't resemble that remark.

If I was looking for a relatively inexpensive stereo integrated amp I'd consider the Onkyo, but I'd also look at the outlaw receiver http://www.outlawaudio.com/products/rr2150.html

Our choices for two channel gear in the US are abysmal.

Are there a lot of products that you cannot get in the U.S., or are you merely talking about the lack of major B&M retailers carrying high end gear? At least Southern California, I can find a place to audition NAD, Krell, Mark Levinson, Bel Canto, SimAudio, etc., but they won't be in the same place.

I ended up going for the Bel Canto S300i. Great D-class integrated, but I can't compare it to the Onkyo. Probably not worth 2-3x the price, but that's the nature of this stuff.

Are there a lot of products that you cannot get in the U.S., or are you merely talking about the lack of major B&M retailers carrying high end gear? At least Southern California, I can find a place to audition NAD, Krell, Mark Levinson, Bel Canto, SimAudio, etc., but they won't be in the same place.

I ended up going for the Bel Canto S300i. Great D-class integrated, but I can't compare it to the Onkyo. Probably not worth 2-3x the price, but that's the nature of this stuff.

If you're talking about pricy brands such as MK, Bel Canto, etc. then 2 channel stereo is doing OK in the States.

However, if you are talking about 2 channel stereo gear from mainstrean manufacturers, then there's a shortage. Yes, there're still a good number of stereo receivers from brands such as Onkyo, Yamaha, Denon, Sherwood, etc. But if you want integrated amps and dedicated CD players, they're simply not offered in the States. 2 channel stereo components that are offered in Asia and Europe just do not get marketed here. It's almost shocking that Onkyo is actually offering a stereo integrated amp and a dedicated single-disc CD player for the US. Recently, Pioneer Elite also announced 2 channel stereo components....so I am hoping more mainstream manufacturers will get back to these gear.

I just received my Onkyo A-9555 integrated today. Set up is naturally very easy, being a two channel amp. The AC cord that is provided is large and stoutly made. I really like the remote control, which has the volume up and down buttons in a excellent position in the center of the remote.

My first impressions of the sound are underwhelming. I do believe it is superior to my HK3480 two channel receiver it is replacing...but only slightly. Of course, I have heard that there is a prolonged time needed for burn in and I will post my thoughts after several days of continuous play.


Some initial observations:

1. I really like the remote control, which has the volume up and down buttons in a excellent position in the center of the remote. The remote also has many functions for the matching dedicated Tx-7555 cd player.

2. The volume knob on the amp only turns about 3/4 of a full revolution from muted to full volume. I does feel much better in the hand than the Yamaha receivers, but nothing like the Denon receivers. No spinning the volume knob like many other devices. (Not sure if I like this yet or not).

3. One thing I kind of miss is having a display for the volume in dbs. I guess I'll get used to it.

4. The loudness control makes a subtle difference in sound. But is a nice feature. I usually use the pure direct mode.

5. I guess the best way to explain the sound right out of the box is neutral, moderately open and a little strident. Not as warm as the HK but a little bit clearer.:rolleyes:

I wish I could buy this amplifier and try it but my speakers really like power and I don't think 85 watts will cut it. How conservative is the rating? Is there a non European version of the 9755 available like a Japanese version that could work with our power?

*update* I think I found it, the A-977

http://www2.jp.onkyo.com/product/products.nsf/view/389344573F20D8AC492570C8002D672F?OpenDocument

Now I just need to figure out how to import it.

Was ready to order one but J & R says Onkyo won't let them ship them to Canada. Too bad, cause J & Rs price was $499 and they're $999 in Canada. Ended up ordering a Harman Kardon 3485 stereo receiver from J & R for $229.88, after they price-matched Electronics-Expo. Only the first day I've had it, but I think it's a steal for that price and sounds really good. I guess if I want to try an A-9555 someday, it'll have to be off EBay. Thanks BleuStar for your review and the comparison to the HK 3480. I was wondering how close these would be.

Noway1...I mail-ordered my A-9555 from B&H Photo and Video, and paid US$499 plus shipping, and then plus the GST & PST. You may want to contact them to see if they still ship this item to Canada. I think they still do. They are a reputable mail-order company. Their main business line is cameras.

I found an A-977 on Ebay but it's about $200 more than it should be plus a high shipping rate.

http://cgi.*********/ONKYO-A-977-S-Pre-Main-Amplifier_W0QQitemZ190162037249QQihZ009QQcategoryZ3280QQcmdZ ViewItem

I think I'd be crazy to spend that much and at that price I probably have better options although I can't think of any right now. Digital amplifiers are either super cheap or super expensive right now.

Ok...after two days of almost continuous use, I have a few more observations about the Onkyo A-9555 integrated amp. Especially compared to the HK3480 it is replacing.

After hearing the sound out of the box at a fairly low volume, I was really contemplating sending the unit back, because I wasn't sure I could justify the extra money above and beyond what I payed for my HK3480, for what seemed to be a very modest sound improvement. But a day and a half later, to quote Sammy Hagar, I have finally been able to turn up the music...which has given me a chance to hear the sonic differences more clearly.

1. The A-9555 has a TON of power. My HK3480 was 120wpc. The Onkyo is 85wpc. However the Onkyo has more clean power than the HK. It loves being loud, and is more musical at higher volumes than the HK.

2. I really have come to love the versatility of the A-9555. Especially the pure direct mode and loudness control. Both of these features are not on the HK3480.

3. The update on the sound after about 30 hours of burn in; The HK is still warmer than the A-9555 but not nearly as detailed or tight all through the bandwidth of sound.

4. The Onkyo is still a tad strident, but the extreme high frequencies are the slightest bit rolled off. Not in a bad way, the A-9555 is just not quite as airy and transparent as a $2,000.00 integrated.

5. The midrange and treble flat out kill the HK. The detail and soundstage are impressive. The bass is more taught and controlled.

6. This amp is not warm sounding like an HK or a Marantz, and not as bright as a Yamaha or Denon. It seem neutral leaning very slightly cool. It will not really warm up very clinical sounding recordings.

7. I'm also finding out that leakage from input to input is nearly non existent. The A-9555 does not run hot either. After about 18 straight hours of play it is only warm to the touch. I have a cd player on top and the unit is not in a cabinet.

8. For the money I have to say I agree with many of the reviews I have read lately http://www.avguide.com/products/product-3783/. I will be keeping the amp and purchasing the matching tx-7555 to go along with it.

I will give one more update after about 100 hours or more of burn in and let you all know if the sound changes for the better.:)

1. The A-9555 has a TON of power. My HK3480 was 120wpc. The Onkyo is 85wpc. However the Onkyo has more clean power than the HK. It loves being loud, and is more musical at higher volumes than the HK.



This makes me want to try the A-9555 and he if it'll open up my speakers alright. My speakers do alright with the Panny XR57 in dual amp mode but struggle a little when I turn it off. I wish I could buy it local someplace and return it if it doesn't work for me but I don't think anywhere is carrying it.

Hey Dave, If you are considering the Hk3485 or the A-9555 I would definitely recommend auditioning the ONKYO. I would have bought the A-9755 if it had been available in the US. I am coming to really like the A-9555 though, and the power is not a problem in my room (15'x12'x8'tall). I am driving infinity beta 20's very loud without a problem.

I bought mine from Amazon and paid a tad more just for the ability to return it if it didn't work out. For the money I am very impressed by the sound and build quality. My Hk3480's weight was 20.7lbs and the ONKYO is 28.7lbs.

Hopefully you can find one locally to listen to.:)

The Onkyo A-9555 has a long break-in. I found this out through others who warned me that I'm in for a big surprise after it fully breaks in. I have to say, many were right! After about 4 or 5 months it really sounded even better and more of what I liked. It sounded nice right out of the box but even better later on with break in time. I ended up buying another Onkyo A-9555, that's how much I like it.

I own tons of speakers, amps, and other stereo gear.... I know.... my other half tells me it's an illness but I really like it all. I don't find that the Onkyo is on the cool side of sound. I find that the Onkyo leans ever so slightly to the warm side from my experience of owning cool to warm sounding amps. I also didn't find the Onkyo A-9555 strident at all from the first time I opened and listened to it, even on Klipsch speakers! It has been reviewed as sounding tube-like from many mag reviews and not strident, so I was surprised to hear that from you, I don't know what speakers you run it with. The Onkyo is very clean and clear sound, smooth and no hint of harshness. It's a well rounded and balanced sound. I find the Onkyo as about as open sounding as my much more expensive amps. Sure I have some amps that sound a tad more transparent and a little bit airier but these amps cost me over $2000.00 more..... yet the Onkyo has a very clear dead on sound that the others come near but not quite dead on. The Onkyo A-9555 will get a little more airier and bloom with break-in....and I can turn it up very loud on my Klipsch speakers and it never gets my ears like some amps can do, sounds very nice.

The reviews I have read on the Onkyo A-9555 that has given the proper break-in time have been very positive and impressive. The Onkyo A-9555 are really a 100wpc rating. Test on them also validates this. Stereophile tested the A-9555 showing these rated power results:

............................................................ ....
the A-9555 comfortably exceeded its rated power, clipping at 110Wpc into 8 ohms, 175Wpc into 4 ohms ' and, with one channel driven rather than two, 245W into 2 ohms
............................................................ ....

I've also heard the Harman Kardon 3485 at a family members home and listen to it for about 2 hours and have to say it sounds nice too! Not as clear and detailed as the Onkyo but I was still impressed with the Harman Kardon for it's price and features. The Onkyo also has better bass control than the Harman Kardon but this comes from the advantages of the PWM (Class D) amps have always had this effect on bass.

Enjoy.... there is still more break-in time for you to come..... as it breaks-in more..... you will
be enjoying it even more. I know I am! :)

Did I forget to mention the great resolution power the Onkyo A-9555 has?

well, i also made my purchase... but i decided to go another route.

i went more upscale and got the little PS Audio Trio C-100 (http://www.psaudio.com/cart/ProductDisplay.asp?productID=113).

it's got 100 Class D watts @ 8ohms, doubling down to 200W into 4, in a dual mono configuration.

it's only got 3 inputs, but that's all i need.

size-wise, it's certainly not the monster that the Onkyo is, in fact it's tiny... but this little thing has more power than my speakers know what to do with.

it's very understated, with excellent build quality (well, the remote is lame, but useable).

and the sound! wow... the imaging is unbelievable... 3D and precise. i could close my eyes and point to each musician in space. the highs are extended and smooth, the bass is musical but not overpowering (some might want more slam). and everything from top to bottom is transparent, smooth and crystal clear.

it doesn't sound harsh up high, like lesser Class D amps i've heard. it doesn't sound congested in the mids, like a lot of mid-priced solid state amps. and it doesn't lose control of the bass, like many tube amps i've heard.

so far, i'm a happy, happy camper. :D

oh... and it doesn't lose any clarity or resolution at low volumes... which is a huge plus for me.

If you think of it Vic, post back in a couple of months with any info if it's developed any quirks or problems.

If you think of it Vic, post back in a couple of months with any info if it's developed any quirks or problems.

:confused: you mean, if it breaks? :confused:

The Onkyo A-9555 has a long break-in. I found this out through others who warned me that I'm in for a big surprise after it fully breaks in. I have to say, many were right! After about 4 or 5 months it really sounded even better and more of what I liked. It sounded nice right out of the box but even better later on with break in time. I ended up buying another Onkyo A-9555, that's how much I like it.

I own tons of speakers, amps, and other stereo gear.... I know.... my other half tells me it's an illness but I really like it all. I don't find that the Onkyo is on the cool side of sound. I find that the Onkyo leans ever so slightly to the warm side from my experience of owning cool to warm sounding amps. I also didn't find the Onkyo A-9555 strident at all from the first time I opened and listened to it, even on Klipsch speakers! It has been reviewed as sounding tube-like from many mag reviews and not strident, so I was surprised to hear that from you, I don't know what speakers you run it with. The Onkyo is very clean and clear sound, smooth and no hint of harshness. It's a well rounded and balanced sound. I find the Onkyo as about as open sounding as my much more expensive amps. Sure I have some amps that sound a tad more transparent and a little bit airier but these amps cost me over $2000.00 more..... yet the Onkyo has a very clear dead on sound that the others come near but not quite dead on. The Onkyo A-9555 will get a little more airier and bloom with break-in....and I can turn it up very loud on my Klipsch speakers and it never gets my ears like some amps can do, sounds very nice.

The reviews I have read on the Onkyo A-9555 that has given the proper break-in time have been very positive and impressive. The Onkyo A-9555 are really a 100wpc rating. Test on them also validates this. Stereophile tested the A-9555 showing these rated power results:

............................................................ ....
the A-9555 comfortably exceeded its rated power, clipping at 110Wpc into 8 ohms, 175Wpc into 4 ohms ' and, with one channel driven rather than two, 245W into 2 ohms
............................................................ ....

I've also heard the Harman Kardon 3485 at a family members home and listen to it for about 2 hours and have to say it sounds nice too! Not as clear and detailed as the Onkyo but I was still impressed with the Harman Kardon for it's price and features. The Onkyo also has better bass control than the Harman Kardon but this comes from the advantages of the PWM (Class D) amps have always had this effect on bass.

Enjoy.... there is still more break-in time for you to come..... as it breaks-in more..... you will
be enjoying it even more. I know I am! :)

I was sold to the story until you mention the break-in process. Semiconductors only needs to be warmed up and no break-in required.

VicAjax,

Congrats on your new amp. I'm sure it's a nice one. I would love to compare one with the Onkyo A-9555 but I do not own the PS Audio. I own some others digital amps that cost many more times the cost of the Onkyo and the Onkyo comes surprisingly close, better, or near so of the ones I own. As a value stand point, build quality, and one getting into this kind of sound for far less than the competition is alway a good thing in my book. The Class D amps are much less expensive for manufacturers to build than good analog amps. It would be great to see these manufacturers pass the savings down to the end-users but it isn't likely but as with most things in life, new technology always demands a higher price when it's first starting to get popular with the public. Even though these technologies have been out 30 years or more, it getting more of the know-how than before. It would be great to compare before buying but it's hard to do these days with most places not carrying the better goods. Enjoy!!

vitaminc,

Please don't feel I'm trying to sell you a story to convince you to purchase a A-9555. I'm not trying to sell anyone on the Onkyo A-9555, I do not work for Onkyo, nor any sales dept., etc. I'm just giving some of my own personal opinions/experiences to share with others who might be interested in the Onkyo A-9555 of what it's like as a product. I had to take more of a chance with the Onkyo A-9555 when I first purchased it because there weren't many out there who had any experiences with it, except for the UK and Asia market place, for which I did get many opinions from those nice folks in those Countries on the Onkyo A-9555 over the internet that helped me out deciding if the Onkyo sound would be something I would be interested in, as the Onkyo A-9555 had been out in the UK and Asia market for well over a year before Onkyo decided to release it to the US Market.

As for the break-in. There is always a great debate about this from everywhere/everyone, some believe there is an actual break-in period, some believe it's bunk and it's only our ears and brains that actually get used to what we are hearing...our heads break-in. I'm not here to debate that and will leave you to your own opinions and beliefs with that and respect you for it, as I myself couldn't scientifically tell you if it falls in either category or none at all. My mind only tells me what I think I hear! :)

vitaminc,

Please don't feel I'm trying to sell you a story to convince you to purchase a A-9555. I'm not trying to sell anyone on the Onkyo A-9555, I do not work for Onkyo, nor any sales dept., etc. I'm just giving some of my own personal opinions/experiences to share with others who might be interested in the Onkyo A-9555 of what it's like as a product. I had to take more of a chance with the Onkyo A-9555 when I first purchased it because there weren't many out there who had any experiences with it, except for the UK and Asia market place, for which I did get many opinions from those nice folks in those Countries on the Onkyo A-9555 over the internet that helped me out deciding if the Onkyo sound would be something I would be interested in, as the Onkyo A-9555 had been out in the UK and Asia market for well over a year before Onkyo decided to release it to the US Market.

As for the break-in. There is always a great debate about this from everywhere/everyone, some believe there is an actual break-in period, some believe it's bunk and it's only our ears and brains that actually get used to what we are hearing...our heads break-in. I'm not here to debate that and will leave you to your own opinions and beliefs with that and respect you for it, as I myself couldn't scientifically tell you if it falls in either category or none at all. My mind only tells me what I think I hear! :)

I personally am going to bring home an A9555 to audition, when my low apr credit card limit frees up.

Okay. I will tell you scientifically, given my electrical engineering background, that semiconductors don't need to be broken in, except for the operating temperatures.

I will tell you scientifically, given my electrical engineering background, that semiconductors don't need to be broken in, except for the operating temperatures.

This may be true, but at one time the scientific community thought the world was flat...so there is always some doubt about whether what we believe is true is truly true. Also, the Onkyo is not 100% made of semiconductors.

This may be true, but at one time the scientific community thought the world was flat...so there is always some doubt about whether what we believe is true is truly true. Also, the Onkyo is not 100% made of semiconductors.

Extremely weak argument drawing irrelevant comparisons.

Earth is not man made.

However, the engineering community invented/designed/manufactured both vacuum tubes and solid states semiconductors. Oh and btw computer, ipod, mouse, LCD screens, projectors, cell phones and telephones.

Of course, not everything inside the Onkyo is 100% semiconductors, as its a combination of semiconductors and simple electronic components for the amplification stages. None of those needs to be break in.

And btw, do you break-in your ipod, telephone, cell phones for better sound quality and better receptions?

I was sold to the story until you mention the break-in process. Semiconductors only needs to be warmed up and no break-in required.

Yes, it's true, semiconductors do not need a break-in period. Even so, I also noticed a break-in period for my A-9555. It could be a few things:

-- Changes in the sound quality of the source material
-- could be completely in my head
-- There could be a real break-in period due to something in the analog portion of the amp- it isn't completely digital

Whatever it is, it sounds consistently great now.

VicAjax,

Congrats on your new amp. I'm sure it's a nice one. I would love to compare one with the Onkyo A-9555 but I do not own the PS Audio. I own some others digital amps that cost many more times the cost of the Onkyo and the Onkyo comes surprisingly close, better, or near so of the ones I own. As a value stand point, build quality, and one getting into this kind of sound for far less than the competition is alway a good thing in my book. The Class D amps are much less expensive for manufacturers to build than good analog amps. It would be great to see these manufacturers pass the savings down to the end-users but it isn't likely but as with most things in life, new technology always demands a higher price when it's first starting to get popular with the public. Even though these technologies have been out 30 years or more, it getting more of the know-how than before. It would be great to compare before buying but it's hard to do these days with most places not carrying the better goods. Enjoy!!

thanks very much...

i got a very good deal on the C-100, so that helped in my decision for sure. also, the Onkyo was far too big for the shelf-space i had available... another consideration.

but primarily, i've been impressed with PS Audio's atempt, using "Gain Cells" that directly adjust the gain of the amp rather than attenuating the signal or adding traditional pre-amp circuitry. it's supposedly as close as anyone's gotten to "straight wire with gain."

there's also the added benefit of having physical (and i assume sonic) synergy with the PS Audio Digital Link III DAC, which will be my next upgrade.

right now, i'm A/B'ing two different sets of interconnects... a pair of Kimber Heroes my friend lent me and a pair of DIY magnetwire ICs that i made. i can immediately hear the different sound signatures... much more easily than i thought i would (i was thinking i wouldn't hear anything). so far, i think i prefer my magnetwire... the bass is tighter but not as full or impactful.

I was just wondering how 9555 compares with Rotel's
stereo receiver RX-1052 or the integarted amp RA-1062
or their Class-D amps.

They all have only analog inputs. So we dont have to worry about digital.

I was considering RX-1052 until I read the posts here about Onkyo A-9555. Rotel is $899 but the dealer would give it for $810. It has some video capabilities but who cares about composite video switching. So all the video features of Rotel are useless to me.

One thing the Rotel has which Onkyo doesnt have is the output. Rotel has one analog RCA L&R output so I can connect my sub (line level connection). I only have the Klipsch RB-81 bookshelf speakers so I need the sub. I have the Sunfire Trusub Junior. I like the sound of the RB-81 and the sunfire. I am a serious music lover and I am looking to upgrade my source.

I can still hook up the sub on the Onkyo 9555 using the speaker B and should be able to turn the sub on and off by turning on/off speaker B right?

I compared the Rotel RX-1052 with the DENON 2308 (HT receiver) on the Klipsch RB-81 without any sub at the dealer store. I didnt spend a lot of time but the Rotel sounded better, especially the bass was much tighter.

I was just wondering if the Rotel is worth the extra dollars, other than the Rotel brand name. If I can get the ONKYO 9555 for $499 should I spend another 350-400 on the Rotel RX-1052

Any feedback is appreciated.

BTW I am currently using a 6 year old Yamaha RX-V595a HT receiver which I am definitely trying to replace with a 2Ch Amp/Integrated receiver.

Rotel rx-1052 vs Onkyo A-9555

I have heard both.

Sound wise I'd pick the Rotel ever so slightly over the A-9555. The Rotel sounds very slightly more refined and polite, and very slightly more extended with the highs. Bass and midrange I would call a push, with the Rotel sounding more controlled and the Onkyo having more...dare I say, "balls".

Of course, the Rotel has the built in tuner and the Onkyo is an integrated amp.

Cosmetically I like the Onkyo layout better as well, especially the loudness and pure direct function controls. I also like the Onkyo remote over the Rotel and really like the fact that I can control the amp and cd player (Onkyo dx-7555) and future tuner with one nicely laid out remote. If I decide to get a tuner, the Onkyo t-4555 just had the best score for that as well in the October issue of hifichoice.co.uk. The Onkyo tuner was compared to Arcam, Cambridge Audio, Denon, Marantz, and Nad.

I also like the Onkyo dx-7555 cd player over the Rotel 1072. This is the next purchase for me; to match the quality and cosmetics of the A-9555.

When I set out to research and demo the players for my new two channel system, Onkyo wasn't even being considered. But after stumbling onto a few reviews and the feedback from others in these forums, I decided to give Onkyo a try. I'm glad I did.

For the price and consistent approving reviews for the Onkyo products, It was a no brainer for me to choose the Onkyo.

BlueStar: thanks for the Rotel-Onkyo comparison.

Glad to know that Onkyo compares well with Rotel.

Have you or anyone else tried to hook up a sub to Onkyo 9555?

Since it does not have any line level outputs (RCA) I guess the only
way to hook up a sub is to use speaker B. Infact this is how the dealer
had connected the sub to the Rotel RX-1052. He said this way he can
turn on/off the sub. Where as if you connect the sub using the line level
output then you cant turn off the sub. The Rotel remote clearly has A,B buttons. Too bad Onkyo web site does not have the user manual for 9555.

The NAD C372 2ch integrated amp has a volume control on one of the outputs but this is only manual control not via remote. If I can control the volume on the sub manually I dont care about the manual control on the integrated amp.

So my question again: Is it possible to turn on/off speaker B on the Onkyo using the remote.

BTW any comparison between NAD and Onkyo. NAD also has sub $1000 2ch integrated amps C372 , C352 etc. The NAD C372 has got very good review at stereophile. But this reviewer does not seem to emphatically recommend
NAD C372 unlike the Onkyo 9555 reviewer. I would presume that NAD C352 which is 80W/channel would also get good reviews if it has similar buid except for the power. C372 is 150 W/channel.

http://stereophile.com/integratedamps/1006nad/

So my question again: Is it possible to turn on/off speaker B on the Onkyo using the remote.


There is no way to turn speaker B on and off via the A-9555 remote. The front panel of the amp contains the speaker switch.

It sounds like the NAD 372amp is nice too. I briefly looked into NAD and couldn't get past the look.

not a fan of the NAD sound, myself. although i know many people who absolutely love it. i've heard great things about the 372.

There is no way to turn speaker B on and off via the A-9555 remote. The front panel of the amp contains the speaker switch.

It sounds like the NAD 372amp is nice too. I briefly looked into NAD and couldn't get past the look.

I had been reading the Rotel-RX1052 manual. Man! it is so versatile when it comes to connections. Not throwing stones at the Onkyo. Just FYI
The extra some $300 for the rotel may be worth spending just for the increased flexibility as far as connections. Using the remote I can turn on/off speaker A, B or both (for headphone listening). RX-1052 has 4 outputs. 3 zones and 1 pre amp out. The 3 zones can be turned on/off from the remote and also the volume level can be adjusted from remote or set to a max. volume. Pre amp output is similar to zone output but the vol. level is same as the main vol. level.

It is cool. I can hook up the sub using one of the zones and can control the volume level of the sub from the remote. This is similat to the sub level control which only HT receivers provide (bass management).

I dont have to keep getting up to adjust the sub level manually. Some songs have too much bass so I would like to have control over the bass level. I only have bookshelf speakers so this is a cool feature that gives me control over the bass level on the sub from the remote.

I have to check if NAD C352/372 has this cool feature.

Has anyone considered outlaw RR2150.
This has been compared well with the Rotel RX-1052 for sound quality. It doesnt have the versatile connections of the Rotel but has better connections than the Onkyo. It also has subwoofer line level output and sub woofer cross over selection (60,80,100 Hz)

Again not throwing stones on Onkyo. Just wanted to get the opinion.

In order to keep this thread focussed on Onkyo, I would probably start a new thread where people could talk about different 2ch receivers.

love my outlaw 2150---lots of inputs,plenty of power and works great with my svs pb12/+ sub & sierra 1's----one mans opinion---bought the 2150 based on reviews and b-stock price of $499:)

The Outlaw 2150 was actually the runner up for me and my system. I think it is a great versatile amp for the cost. Good reviews and a cool retro look.

I would have to agree about the Rotel. If you are ok with spending the extra money, I would go with the Rotel RX-1052. It's a very nice piece from Rotel and has gotten great reviews.

The difference I hear between the Onkyo A-9555 and the Rotel RX-1052 is this:

Both are a little different in how it sets up the soundstage, yet not a huge difference. It took me quite a bit of going back and forth to compare the difference. The Onkyo will give you all the detail that the Rotel gives, but the Rotel gives a slightly smoother overall sound with a little more roundness and airiness with instruments that sounds very nice. The Rotel also sounds like it puts out a little stronger sound, power wise, although the Onkyo A-9555 puts out a lot of power.
When I listen to the Onkyo A-9555 I do not notice this but as soon as switching back to the Rotel RX-1052, I noticed it just sounds like more power. Not sure why this is but maybe something to do with the class-d amps and analog amps? The Onkyo A-9555 probably has a tad more bass control than the Rotel but the Rotel certainly isn't lacking in that area and has good bass control. The Rotel has more options and has a nice built-in tuner, all stages are treated as if separates so it gets great reviews of sounding like a separates system. I like both the Onkyo A-9555 and Rotel RX-1052 but if I had to only keep one, I would keep the Rotel RX-1052. I also own other Rotel gear, such as the RC-1070, RC-1090, RB-1090, RB-1080, RT-1080, and RCD-1072 and it's all good equipment, build quality, and excellent sound that is very hard to beat for the price. I own lots of equipment and I've kept most of my Rotel gear. The Onkyo A-9555 will give you that great touch of high-end sound more affordably.

Hope this helps, best of luck!

Also..... the Rotel RX-1052 has a overall better build quality and is a little heavier than the A-9555. The Rotel RX-1052 also has a Toroidal transformer.

Also..... the Rotel RX-1052 has a overall better build quality and is a little heavier than the A-9555. The Rotel RX-1052 also has a Toroidal transformer.

doesn't the A-9555 have a toroid as well? i thought that was the big selling point, its big honking power supply.

Yes, the Onkyo A-9555 has a transformer. It's the traditional style square block kind, I forget what kind they call these at the moment, but this type of transformer is used in most of all Onkyo's analog amps. The Rotel is a custom made by Rotel toroidal transfomer that is the large round donut style transformer.

The Onkyo transformer has flat copper rolled like tape, and the Rotel has copper-core round strands wound like a large ball of string but in a donut shape.

Most Class D amps don't use a traditional analog transformer as Onkyo does in the Onkyo A-9555. This is where Onkyo claims it doesn't have some of the issues that most Class D amps have in that area. My other digital amps that use the same technology as the A-9555 do not have a large transformer in them.

yes, my C-100 doesn't have large transformers, but the power supplies are linear and the amp stages are dual mono.

what i've heard (not that i'd know any better) is that the biggest problem in implementing Class D right is getting the power supply right.

is there a sub out on this amp.

FYI, the manual (for both A-9555 and A-9755) is available on the Onkyo web site:

Onkyo A-9555/A-9755 User Manual (http://63.148.251.135/redirect_service.cfm?type=own_manuals&file=A-9755_9555_En.pdf)

Do you think it would have a problem powering the strata minis which are 86db.
At the back of the manual it says 100x2 at 8ohms. I thought it was 85x2...

The A-9755 is 100x2 and the A9555 is 85x2.

Actually, the A-9755 is 150x2 (according to the manual). And the manual is inconsistent on the A-9555, stating 100x2 in one place and 85x2 in another.

it's moot, really... because the A-9755 isn't available in the U.S.

So true!

anyone have this amp powereing 86db speakers or less. How is it working for you...

I've been looking at a lot of integrateds lately, and I finally decided to give the Onkyo A-9555 a try. At $499 (and available in Silver), I figured why not? Can't wait to see how it handles my B&W CDM 9NTs. With 200wpc @ 4 ohms, it appears to have plenty of power. If it's anywhere near the build quality and amazing sound of my Onkyo DV-SP1000, I'm sure I'll be happy. Will report back when I get it and have a chance to try it out.

I just bought one off ebay for 460$ including shipping.

If I was looking for a relatively inexpensive stereo integrated amp I'd consider the Onkyo, but I'd also look at the outlaw receiver http://www.outlawaudio.com/products/rr2150.html

•Signal-to-Noise Ratio: >54dB

OMG... how can that sounds good?

I was just wondering if the Rotel is worth the extra dollars, other than the Rotel brand name. If I can get the ONKYO 9555 for $499 should I spend another 350-400 on the Rotel RX-1052


In general for me it is. I have an old ra-972 that still sounded great in stereo. Unfortunately it broke and find a replacement is difficult.

•Signal-to-Noise Ratio: >54dB

OMG... how can that sounds good?

That's the AM Tuner SNR...

The SNR of the amp section is 96 dB.

That's the AM Tuner SNR...

The SNR of the amp section is 96 dB.

Something didnt sound right in that :)

I would have to agree about the Rotel. If you are ok with spending the extra money, I would go with the Rotel RX-1052.


I own a pair of Rotel and I think they sound great with very high quality/price ratio.
By chance did u compare the receiver with the ampli stereo RA-1072?


I'm thinking to go 7.1 but i don't want to sacrifice stereo reproduction.

And there ARE high-end "digital amplifiers" with digital inputs.


Some names? I'm looking for something good sounding with digital input because I will use as main source a HTPC that i'm building, with an external soundcard and I want the d/c conversion to happen AFTER the signal amplification.

AFAIK all onkyo amps have no digital input. But the receivers from the 605 and above do.

Just received my A-9555 today--thanks to B&H for the double-boxing. Looks and feels very substantial (28 lbs). Set up and listened for several hours, and I am definitely impressed. The sound quality of this integrated, especially considering the price, is very nice. Excellent clarity and bass, and I couldn't even turn it up half-way before it filled my large great room with sound! This is my first 'digital' (Class D) amp, and I am very happy with it so far.

Will be listening quite a bit over the next few days, fed by a variety of CDs stored on my Olive Musica, as it continues to break in.

So what are you using as speakers and cd player? What type of sound do you get? Is it warm, or agressive? How does it differ from your Rotel in sound and power?

frenchmon

So what are you using as speakers and cd player? What type of sound do you get? Is it warm, or agressive? How does it differ from your Rotel in sound and power?
Speakers are B&W CDM 9NT floorstanders, and the source is an Olive Musica playing FLAC tracks of my CD collection. As for describing the sound, I'm not so good at that...all I know is that I like it! I only use the Rotel setup for listening to multi-channel DVD-Audio and SACD, so it is not a very fair comparison. The 5.1 setup also uses B&W 800-series speakers with a sub, which are a few steps above the CDM NTs.

Speakers are B&W CDM 9NT floorstanders, and the source is an Olive Musica playing FLAC tracks of my CD collection. As for describing the sound, I'm not so good at that...all I know is that I like it! I only use the Rotel setup for listening to multi-channel DVD-Audio and SACD, so it is not a very fair comparison. The 5.1 setup also uses B&W 800-series speakers with a sub, which are a few steps above the CDM NTs.

Well, while A9555 might be good, but I would not characterize its sound quality as high-end. The reason being that amplifier and speaker synergies are extremely important.

BTW, which 800 series are you referring to? 805, 804 or 803 and better? IMO, B&W's sound really starts at 803 and up.

Well, while A9555 might be good, but I would not characterize its sound quality as high-end. The reason being that amplifier and speaker synergies are extremely important.

Can you explain more what you meant? Are you saying that whether or not an amp has a high-end sound depends on what speakers it is driving? Thanks.

Well, while A9555 might be good, but I would not characterize its sound quality as high-end. The reason being that amplifier and speaker synergies are extremely important.

BTW, which 800 series are you referring to? 805, 804 or 803 and better? IMO, B&W's sound really starts at 803 and up.
Well, for $499, I'm obviously not looking for "high-end." I'm looking for a high-quality sound for a good price (in this case, a very good price). I definitely found this in the A-9555.

My B&W 5.1 setup consists of 805S/HTM4S/SCMS with an ASW 850 sub. I think many would agree that I'm definitely getting the "B&W sound" with this setup. Sure, I'd love to have 803Ds all around, but for most people, this is simply not practical.

Well, while A9555 might be good, but I would not characterize its sound quality as high-end. The reason being that amplifier and speaker synergies are extremely important.

BTW, which 800 series are you referring to? 805, 804 or 803 and better? IMO, B&W's sound really starts at 803 and up.

Ok can you kindly tell me what a "high end"sound would sound like? Good seperation, imaging, warm, agressive, tube sounding??? What is it?

frenchmon

Can you explain more what you meant? Are you saying that whether or not an amp has a high-end sound depends on what speakers it is driving? Thanks.

The key word is "quality" so it's all subjective, but generally speaking the higher end equipments will reproduce the sound better.

That being said, yes, it all depend on the speakers that it is driving and the music you are listening. IMHO, speakers is the key in sound reproduction not the amplifier, and the amplifier is only there to assist the speakers, giving it enough juice at different frequencies.

Thus, I do not believe this amp has the high-end sound quality unless someone A-B test it against a higher priced amplifiers on a good pair of full-range speakers.

Well, for $499, I'm obviously not looking for "high-end." I'm looking for a high-quality sound for a good price (in this case, a very good price). I definitely found this in the A-9555.

My B&W 5.1 setup consists of 805S/HTM4S/SCMS with an ASW 850 sub. I think many would agree that I'm definitely getting the "B&W sound" with this setup. Sure, I'd love to have 803Ds all around, but for most people, this is simply not practical.

Then I would be very interested to hear what you think about this Onkyo vs. the Rotel, as B&W and Rotel's synergy are fairly well known.

Audiocvk's review earlier on in this thread did not indicate which speakers were used.

Ok can you kindly tell me what a "high end"sound would sound like? Good seperation, imaging, warm, agressive, tube sounding??? What is it?

frenchmon

The key word is "quality" so it's all subjective, but generally speaking the higher end equipments will reproduce the sound better.

I ordered the Onkyo A 9555 and will be comparing it to my Cambridge Audio 640A. I read so many good things about the amp I thought I better give it a try. I will post my findings.

I ordered the Onkyo A 9555 and will be comparing it to my Cambridge Audio 640A. I read so many good things about the amp I thought I better give it a try. I will post my findings.

Please do.

And speaking of the Cambridge Audio, I listened to it paired with the Cambridge CD player and Logan speakers. Had a great sound.

I then listened to the same music on a Marantz 5500 Sony CD player and Paradigm Monitor 7's and it sounded just as good as the Cambridge and Martin Logans.

frenchmon

My comparison between the Onkyo and the Cambridge Audio 640A is the original not the V2 version. This is the second day I have had the amp so I will share my initial reaction and then post more after extended listening. Greater detail and focus in the soundstage. Norah Jones sounds incredible. Voices more human and three dimensional. Bass is tight and defined but I can not comment on deep bass since my speakers are small two way monitors. Better rhythm, pace and timing compared to the CA. The series 1 CA had a slight electronic coloration that I thought might be the cdp but it was the amp. Better focus and instrumental sounds. Easier to follow an individual instrument in the midst of a large group.

The amp is nicely made and heavy compared to the CA and my old Rotel RA 970BX. Controls have a nice feel and to me the amp is good looking. I do not know if the amp needs broken in but if the sound gets better I will be very impressed.

My comparison between the Onkyo and the Cambridge Audio 640A is the original not the V2 version. This is the second day I have had the amp so I will share my initial reaction and then post more after extended listening. Greater detail and focus in the soundstage. Norah Jones sounds incredible. Voices more human and three dimensional. Bass is tight and defined but I can not comment on deep bass since my speakers are small two way monitors. Better rhythm, pace and timing compared to the CA. The series 1 CA had a slight electronic coloration that I thought might be the cdp but it was the amp. Better focus and instrumental sounds. Easier to follow an individual instrument in the midst of a large group.

The amp is nicely made and heavy compared to the CA and my old Rotel RA 970BX. Controls have a nice feel and to me the amp is good looking. I do not know if the amp needs broken in but if the sound gets better I will be very impressed.

Thanks. Kindly continue to update. What speakers are you using?

frenchmon

Thanks. Kindly continue to update. What speakers are you using?

frenchmon



I have NHT SuperOnes and Ascend CBM 170SEs. I listen to the Ascends most of the time. I have been very impressed with the NHT Classic Threes and I like what I have read about Paradigm Studio 20 v4. As good as the amp is a speaker upgrade might be in oreder. It is a good match for the Ascends. The CBM 170SE's are very neutral. I tend to prefer small stand mounted speakers in my current living space.

I have NHT SuperOnes and Ascend CBM 170SEs. I listen to the Ascends most of the time. I have been very impressed with the NHT Classic Threes and I like what I have read about Paradigm Studio 20 v4. As good as the amp is a speaker upgrade might be in oreder. It is a good match for the Ascends. The CBM 170SE's are very neutral. I tend to prefer small stand mounted speakers in my current living space.

If you like sound thats very nutral and natural, then I believe Paradigm is hard to beat. I have the Monitor 7's and have been looking for new speakers for a 2 channel system. I've listen to many speakers over the last few months and the Studio line has a lots to offer in that price range.

frenchmon

I recently bought the A-9555 from B&H Photo and had it sent to me in Canada, as the supply chain for the Canadian distributor is so poor, buying the same amp through a Canadian retailer would have cost $999. The US supply chain for most products is so much broader, deeper and more efficient than Canada.

As for the sound, it's a killer. I've listened to many amps over the years, both expensive and not expensive, and the Onkyo does deliver excellent sound, far better than any budget amp. It does reach into what we would call high-end sound, as it puts out plenty of mid-range and high-frequency energy, areas that budget amps cannot deliver due in part to inadequate power supply design, and the power supply is the most important part of any amp. The PWM system seems to allow for excellent higher frequency reproduction since the amp just has to be able to put out the right amplitude and width of pulse at the right time.

As the Stereophile review notes, this makes a great amp for those on a budget, those who want excellent sound and can save on amp costs so that they can devote a greater proportion of their funds to the source and speakers.

'Tis a shame, though, that Onkyo won't stock the more expensive twin power supply model. But the A-9555's sound quality is so good for the money, the performance/price ratio is head and shoulders above all competitors. Budget amp makers in the UK and elsewhere had better hope that the Onkyo A-9555 doesn't get too popular.

I've listened to these two models and in my own opinion, the 640A, while very smooth sounding (I'd concur with TAS on that point), the high frequencies are greatly rolled off...I don't hear much high frequency info at all. The A-9555 is gobs of high freqs in comparison. The 740A has more high frequency energy than the 640A, but the A-9555 has a clearer, better defined sound for less money.

Did anyone try NHT speakers, or Infinity Beta series? I have Trends, and Sonic Impact Super T, they sound congested - those two are more picky on speakers, Panny has more power, I wonder...
I thought NHT Super Zero was quite popular, I am surprised no one hooks it up with any digital amp yet.

I've owned my A9555 since May, and I have enjoyed every minute of it.

But the time has come for me to let it go, so I'm putting it up for sale.

I need to get back to a 5.1 setup, and the Onkyo needs to fund a receiver for me.

I will miss it.

Rolen_it_Up...Can I ask you what AV receiver you're planning to get that will have comparable sound quality to the a-9555? Thanks.

I've listened to these two models and in my own opinion, the 640A, while very smooth sounding (I'd concur with TAS on that point), the high frequencies are greatly rolled off...I don't hear much high frequency info at all. The A-9555 is gobs of high freqs in comparison. The 740A has more high frequency energy than the 640A, but the A-9555 has a clearer, better defined sound for less money.

i auditioned the 840A when i was amp shopping. it definitely made the short list... unbelievable resolution and control at both ends, but ultimately a tad too cold for my taste.

i auditioned the 840A when i was amp shopping. it definitely made the short list... unbelievable resolution and control at both ends, but ultimately a tad too cold for my taste.

What other amps caught your attention?

What other amps caught your attention?


Prima Luna DiaLogue Two
Rega Mira 3
Exposure 2010S
YBA Design YA201
Naim Nait 5i


of these, the best sounding was the Prima Luna tube amp. it was a demo from my hi-fi shop, and they were going to give me a great deal. the only reason i didn't get it was because it was a 70 pound beast that would never have fit on my shelf.

i thought i'd be buying the Rega Mira, since i have Rega speakers, but i was pretty disappointed in the sound. it was definitely made for vinyl lovers... a great phono stage and a rich, smooth mid-range. but i don't have a turntable (and won't for the forseeable future) and i prefer a bit more depth and resolution.

the C-100 gives me pretty much everything i wanted, except maybe the bling factor. it's very small, understated and well-built.

Cool appreciate your comments. I'm looking for int amp myself. Would love it if i had a local hifi shop i could take home and audition some equipment or at the least listen in store!!! But locally they dont exist. So i'm left with asking lots of annoying questions and reading up. Not the best way i know lol.

I've heard of the exposure someone reccomend both that and the yba201 both were within my previous budget but not my present. The ones I've come up with are NadC352
Arcam A65, CA640v2 Rotel RA-1062 CreekEvo. But the real question is how will these be synergy wise with my speakers present and the pair i'm also looking at the dyna52's prob?

Cool appreciate your comments. I'm looking for int amp myself. Would love it if i had a local hifi shop i could take home and audition some equipment or at the least listen in store!!! But locally they dont exist. So i'm left with asking lots of annoying questions and reading up. Not the best way i know lol.

I've heard of the exposure someone reccomend both that and the yba201 both were within my previous budget but not my present. The ones I've come up with are NadC352
Arcam A65, CA640v2 Rotel RA-1062 CreekEvo. But the real question is how will these be synergy wise with my speakers present and the pair i'm also looking at the dyna52's prob?

i assume you mean dynaudio 52? if you're going to go with those speakers, you'll need a really beefy amp, as all Dyns need a LOT of juice. at the very least, you'll be wanting 100 watts, and preferably more.

the Onkyo might work out, as it's got a good power supply and supposedly doesn't choke on low impedance loads. the Creek, Cambridge and Arcam amps probably won't be powerful enough. not sure about the 352... a used 372 would probably be a safer bet.

efc:

I haven't yet decided what to replace the Onkyo with, and budget is TBD.

I finally put my 9555 for sale here on AVS, and hopefully I get a good amount for it.

If I can swing it I would love to pick up the new Onkyo/Integra pre and a separate amp. If that cannot be done I will likely look into one of the new Onkyo receivers.

well, count me in as a believer too. i doubled my pleasure by getting both the amp and the matching dx-7555 cd player and i am enjoying them thru my quad 11L's. i had the new marantz pm7100 from crutchfield before the onk, but sent it back. too warm sounding, almost emulating the sound of a tube amp in the mid/high frequencies. i'm sure some people will like this sound, but not me on the quad's. the onkyo has a clearer, more neutral sound with tighter bass than the marantz did on the quad's. i can't recommend these components enough.

got'em both in silver at shoponkyo.com. unfortunately i did not get a discount price except for $10 dollars off for joining there as a member. however i did get "points" from buying thru them that i can use towards a future onkyo purchase at that site. i think i have 74 points(or dollars).......... woohoo!

regards,
Paul

I was reading through the thread and was like those specs sound familiar, theres Paul with his Quad 11Ls :) Thanks again for your comparison and answering my questions. The PM7001 sounds like every Marantz Ive heard so I'll skip the it for now. Pretty happy with the Onkyo so far, till I have another itch to scratch heh

I was impressed with the Onkyo A9555 so I purchased the Marantz SA8001 for a source. Then I purchased the Mobile Fidelity OML 1's speakers. The Onkyo works well with the improvements in speakers and source. Oh and by the way I did replace the fuse with the Hi Fi Tuning fuse and there is an improvement.

I have an Onkyo 805 which I like but have replaced it in my main system with another receiver. I want to set up a two channel system using a pair of Swans Diva 5.2f speakers. Would I hear much difference between the 805 and the A-9555 - i.e. should I sell the 805 and buy an A-9555 or just use the 805?

I have an Onkyo 805 which I like but have replaced it in my main system with another receiver. I want to set up a two channel system using a pair of Swans Diva 5.2f speakers. Would I hear much difference between the 805 and the A-9555 - i.e. should I sell the 805 and buy an A-9555 or just use the 805?

FWIW the A-9555 sounds better than the SR504 (I setup two for different family members), better on the highs and definition/detail.

i auditioned the 840A when i was amp shopping. it definitely made the short list... unbelievable resolution and control at both ends, but ultimately a tad too cold for my taste.

Hey guys, sorry to revive a thread that's been dormant for a few weeks. But I have a few questions about the Onkyo A-9555 compared to Cambridge Audio Integrated Amps.

I'd like to know if anyone else has been able to compare the Onkyo A-9555 to the Cambridge Audio 840A (first version), or the 640A v2. I was really considering the 840A and also read good things about the Cambridge Audio 640A V2. But then I stumbled across this thread and after reading your comments, I'm seriously considering the A-9555 instead. Still, I'd like to know if others agree that the Onkyo A-9555 not only sounds better than the 640A, but also the 640 v2 and 840A.

After listening to both the Azur 540A and A-9555 for awhile my opinion has changed and I have to say the Onkyo is better. My first impression of the 540A was it had a fuller sound because of the deeper bass. But as JohnMichael mentioned earlier there is a sort of electronic coloration or glare to the treble. The vocals, separation and stereo image were all noticeably better on the Onkyo. The only thing the CA has over the Onkyo is deeper bass. Again both amps sound pretty harsh on the highs with poor recordings but the Onkyo is slightly more forgiving.

I agree...Amazing amp! I love mine too! http://forum.audiogon.com/cgi-bin/fr...4234&read&3&4&

Guys, if you've heard the A-9555 and think that it's a high end amp, you should really try the A-9755. It is unfortunate that Onkyo doesn't offer it in the US. The specs on paper are completely the same except for the power rating. But perhaps due to the different components such as capacitors, dual transformer, and all discrete output stage, the 9755's characters are almost completely different. So don't be fooled into thinking that it is just the same amp with more power. I verified this using the power hungry BMW 804 and the slim Onkyo L500 HT speakers with Onkyo DV-SP504 player. Same result. The 9555 seems to go up in volume faster than the 9755 but a closer inspection reveals that this is due to the noise floor of the 9755 that continues to be very low as the volume goes up. The 9755 is so quiet but accurate and refined, I'd even call it a true high end. It's like listening to very expensive amps that's been tuned for music rather than merely accurate to the signal source. Those who like to listen to everything including the harshness and background noise or for home theater would prefer the 9555 and I would not recommend the 9755 for HT. But for music application, it's no contest, the $300 more expensive A9755 is better by a huge margin. Actually it's the only under $1000 Class D integrated amp that I'd say is truly musical. And I've played with Bryston B60 and Krell in the past...

Anyone hear rumors of the 9755 coming to the US?

Also, it's been over two years since the 9555 was announced and I'm noticing a slight price drop online - any rumors of a replacement?

This amp is on my short list for my next replacement...

Anyone hear rumors of the 9755 coming to the US?

I'm already waiting for the replacement to the 9555 and the 9755 :) I read somewhere that their VL (Class D technology) is up to 3rd generation. It's been 2 years, I figured they probably have something up their sleeves to be announced next year. Then it's time to upgrade again. He he... Would be nice if they use their class d amp modules in their receivers. Their only and current TX-L55 doesn't have VL.

The key word is "quality" so it's all subjective, but generally speaking the higher end equipments will reproduce the sound better.



It's hard for me to imagine a statement in audio with which I disagree more vehemently. In my experience based on years of testing, audio electronic component performance and price have no relationship whatsoever. Some of the worst performing equipment has been the most expensive and vice versa. I also don't view quality, sound quality or otherwise, as being subjective.

There is a little bit of relationship between loudspeaker performance and pricing but it is fairly tenouous as well. It is very easy to find speakers that outperform more expensive ones - subjectively or objectively. And that is true at any price level.

FMW, I agree 110%.

Has anyone else had a problem with the A-9555 locking up? I believe we had a bit of a surge the other day (due to tropical storm Fay), and ever since my A-9555 is hosed. I tried the reset (hold down Pure Audio and press Loudness), as well as unplugging from the wall and back in. Nothing. When I push in the master power switch, the Loudness button is lit, as well as *two* of the Source options at once, but no functions work.

I called Onkyo and am planning to take it to a local repair shop, but wondered if anyone else has experienced anything similar?

Guys, if you've heard the A-9555 and think that it's a high end amp, you should really try the A-9755. It is unfortunate that Onkyo doesn't offer it in the US. The specs on paper are completely the same except for the power rating. But perhaps due to the different components such as capacitors, dual transformer, and all discrete output stage, the 9755's characters are almost completely different. So don't be fooled into thinking that it is just the same amp with more power. I verified this using the power hungry BMW 804 and the slim Onkyo L500 HT speakers with Onkyo DV-SP504 player. Same result. The 9555 seems to go up in volume faster than the 9755 but a closer inspection reveals that this is due to the noise floor of the 9755 that continues to be very low as the volume goes up. The 9755 is so quiet but accurate and refined, I'd even call it a true high end. It's like listening to very expensive amps that's been tuned for music rather than merely accurate to the signal source. Those who like to listen to everything including the harshness and background noise or for home theater would prefer the 9555 and I would not recommend the 9755 for HT. But for music application, it's no contest, the $300 more expensive A9755 is better by a huge margin. Actually it's the only under $1000 Class D integrated amp that I'd say is truly musical. And I've played with Bryston B60 and Krell in the past...

Hi ...long time reader 1st time poster...
in regards to the Onkyo A9755 being for purely music which applies to me as I would be connecting in from a dj mixer (i play vinyl) - if my speakers (Klipsch F3) have a power handling of 150 watt (600 peak) and 97dB @ 2.83 volts/1 meter and the A 9755 states it has 300 watt per channel @ 4 ohm would these have enough power to run the speakers or would I need a more power style amp like the Bryston,Crown etc?

Thanks in advance...:)

if my speakers (Klipsch F3) have a power handling of 150 watt (600 peak) and 97dB @ 2.83 volts/1 meter and the A 9755 states it has 300 watt per channel @ 4 ohm would these have enough power to run the speakers or would I need a more power style amp like the Bryston,Crown etc?

Thanks in advance...:)

It's very efficient so the 9755 which is 170W @ 8 ohm would be loud enough. Though the 9755's character is more liquid than the transparent in your face 9555, so I'm not sure how it'd go with DJ applications. That's more to a matter of taste though and you'd probably want to audition the amp first.

Thanks Veda...will try and find somewhere to demo.....reason I'm not sure is I have read that the amp is meant to be from 1.6 -2.5 times more power than the speaker wattage.

here's the link
http://www.crownaudio.com/amp_htm/amp_info/how_much_power.htm

so using this it gave me a response of needing 250 watt amp...

Thanks Veda...will try and find somewhere to demo.....reason I'm not sure is I have read that the amp is meant to be from 1.6 -2.5 times more power than the speaker wattage.

here's the link
http://www.crownaudio.com/amp_htm/amp_info/how_much_power.htm

so using this it gave me a response of needing 250 watt amp...

Well, not quite. Otherwise those 15W tubes wouldn't sound good on speakers rated 50W. My philosophy is if the amp rating is at least the same as the rating on the speaker than it should be sufficient. How big is the room that you'll be playing at?

Well, not quite. Otherwise those 15W tubes wouldn't sound good on speakers rated 50W. My philosophy is if the amp rating is at least the same as the rating on the speaker than it should be sufficient. How big is the room that you'll be playing at?

Yeah I did think that the result was abit excessive...

ok my set up is a insulated garage 5m by 6 m but the dj booth is only in a corner and I have that absorbtion eggshell foam that corner from head to toe (2m or so high) which only really dulls out the highs from bouncing around.

with the tubes i have read up on them but have'nt any experience or haven't seen much of them in stores in australia....

Heck, that's more than enough for your room. Get the A-9755, you won't regret it. Later on you can still use it as a reference amp in your critical listening setup.

Thanks for the advice...keeping in mind as a dj we like to turn up the music LOUD!

but its all about quality of the sound and these amps sound like they supply a great sound....cheers again.....:cool:

Foam. Fire retardant I hope!

Thanks for the advice...keeping in mind as a dj we like to turn up the music LOUD!

BTW, the only downside with most Class D amps (-$1000) is the low damping factor, which can be somewhat improved using thicker gauge cable. For more info check this site:

http://www.bcae1.com/dampfact.htm#demo

Technically, a rating of 50 is the recommended minimum but the Onkyos with the exception of the A9355 have a value of 25. Though like they said in real world listening especially in your application, it shouldn't matter at all. BEO Ice Class D amps have high damping factors but they cost so much and don't come with Onkyo's proprietary VL technology which makes the sound way smoother than for example the TI chip in the Panny SA-XR57.

ok its getting abit more technical now but will read up and try and get a demo in soon....thanks....

anyone compare the 9555 w/ the NHT power2 amp ?

thanks...

NHT? Isn't that an extinct company? :)

NHT? Isn't that an extinct company? :)

maybe, but good price on all those close out ICE amp :P

Hi there, you guys seem to know about Onkyo A-9755
What do you think of this amplifier with KEF iQ9 speakers? And arcam cd player?

maybe, but good price on all those close out ICE amp :P

Darn I didn't know they use ICE in their amps. Should've gotten a few while they lasted.

Hi there, you guys seem to know about Onkyo A-9755 What do you think of this amplifier with KEF iQ9 speakers? And arcam cd player?

I haven't auditioned it with the iQ9 yet but it's possible and I'll probably do it in the near future. As for matching it with an Arcam player it'd be harder to do.

I haven't auditioned it with the iQ9 yet but it's possible and I'll probably do it in the near future. As for matching it with an Arcam player it'd be harder to do.

Thanks for this answer Veda, hope to read from you about this association iQ9 and onkyo amplifier.
What I'm interested in is to use the onkyo for front amplification of my home cinema as a power amp, and to switch it to integrated pre-amp/power amp each time i'd like to listen to a CD ;)

Darn I didn't know they use ICE in their amps. Should've gotten a few while they lasted.

listenup list them(power2) on ebay now for 500 - 30%MS cash back :)

Very interesting that the A-9555 sold in the US is rated at 85 W/Ch @ 8 Ohms. Here in Asia, it's rated at 100 W/Ch @ 8 Ohms.

http://www.intl.onkyo.com/downloads/manuals/pdf/a-9755_9555_manual_e.pdf (Page 20)

http://www.intl.onkyo.com/products/hi-fi_components/amplifiers/a-9555/i_main.jpg

______________________________________________

Someone mentioned that the more powerful A-9755 (rated at 150 W/Ch @ 8 Ohms) is only avail in the UK. Well, that's not correct ... It's also avail here in Asia.

Here is the A-9755 on the Onkyo Asia / Oceania website (also avail in Silver, Black or Gold color):

http://www.intl.onkyo.com/products/hi-fi_components/amplifiers/a-9755/index.html

BTW, the average discounted price for the A-9555 here in the Philippines is 28,000 pesos ($589 USD)

A very nice amp, but it really could use a Right / Left channel 'Balance' knob.

A Rear / Front speaker 'Fade' knob would even be nicer for those folks that are powering 4 speakers (A + B) with this amp.

Here are some photos of Onkyo A-9555

Here are some photos of Onkyo A-9555

nice pictures

Also..... the Rotel RX-1052 has a overall better build quality and is a little heavier than the A-9555. The Rotel RX-1052 also has a Toroidal transformer.

Isn't the weight of an amp dependent on the design and since the A-9555 is class D and runs very cool, it doesn't require the large heatsinks that a Class A/B amplifier has?

Isn't the weight of an amp dependent on the design and since the A-9555 is class D and runs very cool, it doesn't require the large heatsinks that a Class A/B amplifier has?

Yeap, if amp weight is an indication of sound quality, the Panny XR-57 wouldn't have garnered such a cult following.

Anybody that have used 9755 or 9555 for bi-amping?

I am very satisfid with my 9755 amp, 7555 CD player and Audiovector M3 speakers. But I want to upgrade and start with the speakers. At present I plan for Usher 8571.2 and to buy a second 9755 for biamping.

The 9755/9555 is not prepared for this, so I would have to either:
a) modify one of the amps by modyfing the relay which switch between integrated and power amp mode, and use the main in input (only on 9755) as a pre out instead. (This would not be a big deal, but it would help to have the schematics :-) This way, one amp would act as an integrated amplifier, and the other as a power amplifier only.
b) or connect left and right channels on the two amps and use one amp for the left speaker and the other amp for the right speaker.

Either way I would have 4x150 watts for biamping my two speakers. (Both Audiovector and Usher are prepared for biwiring/biamping).

One concern is how the remote behaves when two amps are connected together with RI.

I would be thankful for experiences and comments.

Here are some photos of Onkyo A-9555

Interesting to compare with the inside picture of 9755 which can be seen on the Onkyo home page. At first glance the additional transformer is the only difference. Obviously they use different components in the output stage, but they certainly have been clever to reuse parts. I like that, more quality for our money :)

gormj, I don't have 2 9755's though personally I would't do it unless like the Panny XR57, it can separate the HF and LF. 150W@8 is powerful enough for bookshelves. But it'll be an interesting project if you decide to do it, and yea I'd do it through the pre-out of the first amp.

Actually if you have the 9755 instead of the 9555, you can use the second unit as a pure power amp as there is a "power amp only" mode and you can control the volume just using the first amp+preamp. I don't think this function is present in the 9555 though.

Btw, I was comparing the 9755 with Cary CAI-1 that uses ICE 125W@8 module. Sounds very very similar with the ICE being better at the bass obviously at much higher damping rate. But it comes as 3x the price too...

Veda said: "150W@8 is powerful enough for bookshelves."

Thanks for feedback Veda.

I already have one 9755. Do you think one Onkyo 9755 has enough power for the floorstanders Usher 8751 mk2? I expect that it is on a limit, and that's why I am thinking of biamping as a good and "cheap" solution compared to buying another new expensive amp. ( Another 9755 will cost me about 1000 Euro, and I expect that a good alternative to 2x9755, for example Hegel H200 will cost about 2700 Euro). And, will the Onkyo and Usher match with respect to tonality?

There is no Usher dealer in my town in Norway. I will have to travel 550 km to listen to them, so others experiece and views are welcome :)

gormj, you and I are on the same path. We're interested in true sound quality as opposed to branding and ego. Prior to getting my Be-718, I was thinking of the 8751 II but my small room can't handle it. If you're gonna be running the 8751, I'd do the biamp option as we discussed above. Otherwise, the newly released Dancer Mini 2 with sensitivity of 90dB seems interesting and is a lot cheaper and easier to move than the 8751. My local dealer doesn't have it yet so I can't comment on the sound quality. Regardless, I truly believe the 8751 to be one of the best speakers money can buy. Even at low volumes, they sound amazing...

http://www.usheraudio.com/speaker-mini%20dancer%202.html

New years eve I came by a pair of used BE-10 on a Norwegian forum. I called the seller the same eveining and bought them. I had to drive 1100 km to get them, but now I am listening through my CD's once more. Very pleasant! Happy New Year :)

So far, the 9755 is more than sufficient for my listening levels. I will have to adjust the position of the speakers when we throw out our Christmas tree, but the first impression is incredible. In a month or so I hope to gather some friends and try out different amps and bi-amping.

gormj, you're not planning on upgrading to the more musical A9755? I thought that amp is a huge leap compared to the A9555.

gormj, you're not planning on upgrading to the more musical A9755? I thought that amp is a huge leap compared to the A9555.
I have (and always have had) the 9755 :). I have never done serious comparison between amplifiers earlier. With my new Ushers BE-10 I have got the tool to do so. I will post the results after the test. Regards.

I have (and always have had) the 9755 :). I have never done serious comparison between amplifiers earlier. With my new Ushers BE-10 I have got the tool to do so. I will post the results after the test. Regards.

I just got the Cary CAI-1 but haven't had the time to sit down and compare it with the 9755. I'll also let you know how it goes.

Been waiting for the 9755 too long....ending up w/ the NHT Power2 ICE amp.

Any news on the 9755 (or the newer model) for the US?

Been waiting for the 9755 too long....ending up w/ the NHT Power2 ICE amp.

Any news on the 9755 (or the newer model) for the US?

Nope, the NHT is exactly the same as the Cary which I use to upgrade from the 9755. I don't think you're missing much. Don't know how the preamp module in the NHT compares with the 9755's though.

The Cary CAI 1 look nice, looking forward to your comparison.
...NHT Power2 is a separate amp only, currently using Primare I21 as pre.

Nope, the NHT is exactly the same as the Cary which I use to upgrade from the 9755. I don't think you're missing much. Don't know how the preamp module in the NHT compares with the 9755's though.

The Cary CAI 1 look nice, looking forward to your comparison.
...NHT Power2 is a separate amp only, currently using Primare I21 as pre.

Tomorrow I'm going to set them up side by side for the comparo. The 9755 can be used as solely power amp so it will be a few combinantions. Will keep you updated...

I've been wondering about buying this (A 9555)or going with an Emotiva RPA-2 (or more standard not Class D amps in the $600-$700 price range). The speakers are the Natalie P's in my sig. I haven't heard anything better than the combination of my DIY speakers power by the Behringer A500. My guess is either one of the amps i'm looking at will be way more than just a barely noticable upgrade... any opinions?

Exocer, I really wouldn't say barely. The difference between the A9755 with the Cary ICE separates are so huge, even bystanders can tell the difference. And I wouldn't say better either as they'll probably sound different but depending on taste... Anyway all I can say is if you're into high end resolution and transparency the A9555 may suffice. The Emotiva may have a much deeper and fuller bottom end though.

Awesome.
I've been thinking about saving up just a little longer and waiting until I can afford the RPA-2.

Awesome.
I've been thinking about saving up just a little longer and waiting until I can afford the RPA-2.

Does the RPA-2 have the true power rating as stated by Emotiva? I heard the measurements done by some people showed a lot less power than advertised. You may want to check their thread. It does sound like a good deal though.

The test I saw does show it putting out closer to 300wpc @ 4 ohms instead of its rated 350wpc.

Either way I go, it looks like i'll have to accept some sacrifices in this price range. Coming from a Behringer A500 either of these amps should impress. Leaning towards the onkyo again unless I can find a good used adcom or emotiva on ebay (even audiogon)...

Leaning towards the onkyo again unless I can find a good used adcom or emotiva on ebay (even audiogon)...

Seriously the A9555 is good but nowhere near the true musical A9755. If possible you should get that one instead if you decide to go Onkyo. Used Emotivas are already on Ebay?

Seriously the A9555 is good but nowhere near the true musical A9755. If possible you should get that one instead if you decide to go Onkyo. Used Emotivas are already on Ebay?
But is the A97555 available in the US? I have the A9555 and love it, but I'd love to see just how much of an improvement the A9755 is.:cool:

A part of me just wants to see if the improvements I hear about can be seen on paper, the other part of me just doesn't care since the a9755 isn't available here in the US.

Emotiva has been around long enough for their stuff to show up used.

Man, it looks like i'm back to where I started. A9555 being at the top of the list. It seems like in order to improve on the A500 by a large margin I would have to look at equipment in the range of this Onkyo and higher.

A part of me just wants to see if the improvements I hear about can be seen on paper, the other part of me just doesn't care since the a9755 isn't available here in the US.

Let's put it this way. A friend of mine is begging me to sell my A9755 even though he just bought the A9555. I got it last year when it was only $700, now it's $1100. The 9355 and 9555 sounds similar. The 9755 is the only and true high end sounding Onkyo Class D amp. Then again I may just set my standards too high...

I have (and always have had) the 9755 :). I have never done serious comparison between amplifiers earlier. With my new Ushers BE-10 I have got the tool to do so. I will post the results after the test. Regards.

Here I am again. I have tested my 9755 against a Hegel H200. The Hegel is a 2x200W 8 ohm amplifier about twice the price of the Onkyo.

The result: The Hegel is superiour to the Onkyo, as one could expect from price and specification. The soundstage is "clearer" and it has better control of the low frequencies than the 9755.

The Hegel is however not the best match to my Usher BE-10 speakers as they are on the "bright" side. We tested different DACs as well and got real nice music with the correct combination. For the few people that are familiar with Norwegian, you can see a "test report" here:
http://www.hifisentralen.no/forum/index.php?topic=32047.msg601128#msg601128

The pleasant hunt for a new amplifier continues. Tubes is on my list. I am afraid this is going to be expensive :-). Meanwhile I am happy with my Onkyos.

Regards
Gorm

oops, sorry double post.

Hello :)

I am considering buying a Onkyo A-9555 but needed to know the exact dimensions for it. Specifically, I'd like to know what the exact depth of it is, not including the front knobs.

The website lists it at 16-15/16" inches, but im not sure if that includes the front knobs.

Thanks!

The website lists it at 16-15/16" inches, but im not sure if that includes the front knobs.Thanks!

42.5 cm depth including vol knob and binding posts, 43 cm side to side, 14.4 height. It's big just like their receivers. Integrateds are nicer when they're small. Wait that's for my A9755. But the A9555 should be the same.

I'm also thinking about purchasing this piece of equipment. Most of the reviews seem to favor it. I'm just looking for something that can handle my Klipsch RF-82's with less distortion at moderate volumes. Currently I have a Yamaha HTR-5740 receiver which I have been using in two-channel but it just isn't cutting it. I know that Yamaha's aren't the best match up for Klipsch and this Onkyo amp seems to run on the neutral side of things from what I read. Would it be wise for me to purchase the A-9555?

Mind you, I listen to my music at a 320 bitrate on an mp3 player. I eventually plan to purchase more cds and start listening to them again. Would I be better of purchasing a two-channel receiver like the TX-8555 or purchasing the A-9555?

Anyone put much time in on this Onkyo's phono stage?

Mind you, I listen to my music at a 320 bitrate on an mp3 player. I eventually plan to purchase more cds and start listening to them again. Would I be better of purchasing a two-channel receiver like the TX-8555 or purchasing the A-9555?

I'm currently hooking up my A-9755 to my PC playing back MP3's and FLACs. No problem at all. Personally though I'd get the new TX-5VL with the built in DAC so you can stream PCM directly to it. The sound should be much better than the A-9555 then.

idk if I'd call the Onkyo A 9555 high-end. I have heard it, i like my Music Hall a25.2 much better, and closer to "high end".
The onki doesn't even have pre outs, which i find weird at that price point.

Just about the only thing that's not high end about the A-9555 is the price ($450 at B&H). It looks phenomenal and every review I've read of this amp compares it favorably to far more expensive pieces of equipment.

Just about the only thing that's not high end about the A-9555 is the price ($450 at B&H). It looks phenomenal and every review I've read of this amp compares it favorably to far more expensive pieces of equipment.

My take on the A9555 is still the same in that the sound isn't "high end" yet. It isn't polished, tuned, and even sweet, just accurate as hell. The A9755 is the only one that manages to achieve that detailed class d sound with real "high end" elements, thus it's the only one worth buying. I'm hoping that Onkyo would've improved the sound in the new TX-5VL. Anyway, for $450 the A9555 still sounds better than most amps in the market and can't be beat if you're into extreme accuracy.

Meh.
even in the 5VL : no pre outs yet; and the RCA jacks and bidnding posts look cheap; input jacks are not even gold plated.

http://www.eu.onkyo.com/ir_img/20804001_b5233703b5.jpg

Meh.
even in the 5VL : no pre outs yet; and the RCA jacks and bidnding posts look cheap; input jacks are not even gold plated.

Not an issue for me as I care more about how a component sounds as opposed to superficial cosmetics that have no relation to SQ. As long as the faceplate matches well with the room's interior... even that's a minor consideration.

My take on the A9555 is still the same in that the sound isn't "high end" yet. It isn't polished, tuned, and even sweet, just accurate as hell. The A9755 is the only one that manages to achieve that detailed class d sound with real "high end" elements, thus it's the only one worth buying. I'm hoping that Onkyo would've improved the sound in the new TX-5VL. Anyway, for $450 the A9555 still sounds better than most amps in the market and can't be beat if you're into extreme accuracy.

Is this based on your own listening tests or just what you've read online?

I find it hard to believe that anyone would hear the difference between these two amps seeing that most of the internals are identical. I think more often than not people just want to believe that the more expensive or powerful piece of equipment sounds better. Has anyone actually A/B tested these amps where every other piece of equipment (and room acoustics) is held constant? Has the setup allowed them to perform the switch quickly on the same piece of music?

Here is the inside of the A-9755
http://img.photobucket.com/albums/v447/tgferg67/9755-800x600.jpg

Here is the main circuit board of the A-9555
http://img.photobucket.com/albums/v447/tgferg67/TARGET_IC-800x600.jpg

The A-9755 does have 2 transformers but the main circuit board is very similar. Take notice when you compare photos that the large heat-sink in the A-9755 is black while the A-9555 heat-sink is silver. Also of note is
the A-9555 circuit board is missing the row of red capacitors near the inputs because the person thinks it improves sound(brighter more detail/less tube-like)

Is this based on your own listening tests or just what you've read online?

I borrowed both amps from the dealer for a few days. Didn't move any other components or changed the room. I didn't want the difference to be that apparent either as I'd like to spend as little as possible on that particular setup. Granted these were both demo units so one could have been broken in more than the other if you believe in such thing. Also, I'm in the camp where price has no relationship with SQ. Have you done your comparison yet?

I borrowed both amps from the dealer for a few days. Didn't move any other components or changed the room. I didn't want the difference to be that apparent either as I'd like to spend as little as possible on that particular setup. Granted these were both demo units so one could have been broken in more than the other if you believe in such thing. Also, I'm in the camp where price has no relationship with SQ. Have you done your comparison yet?

Being in the US there's no place to buy the A-9755, so I don't think I'll get an opportunity to do a comparison anytime soon :)

Have you guys seen this translated comparison review from a German mag? It's for the A9355 against the C315BEE. Granted these are low power entry models but I think the mentioned characters represented their house sounds very well.

http://www.6moons.com/audioreviews/nad_onkyo/comparison.html

This one is for the A9555 and it mentioned the excess air which made the details lost and the top end too smooth. Pretty much summed up what I think about its character.

http://amplifier-review.blogspot.com/2009/07/onkyo-9555-integrated-digital-stereo.html

Have you guys seen this translated comparison review from a German mag? It's for the A9355 against the C315BEE. Granted these are low power entry models but I think the mentioned characters represented their house sounds very well.

http://www.6moons.com/audioreviews/nad_onkyo/comparison.html

This one is for the A9555 and it mentioned the excess air which made the details lost and the top end too smooth. Pretty much summed up what I think about its character.

http://amplifier-review.blogspot.com/2009/07/onkyo-9555-integrated-digital-stereo.html

Sorry, but I still don't buy it. In a blind test neither of these guys would be able to tell any difference between the A-9555 and any other amp. People who focus on these types of subtle differences with amplification are just trying to justify their own purchases, IMO. They are the same people who waste thousands on speaker wire, interconnects, stands, and expensive external DACs, none of which is going to make any difference in the final sound quality compared to numerous dirt cheap alternatives that are available today.

http://www.matrixhifi.com/ENG_contenedor_ppec.htm

In a blind test neither of these guys would be able to tell any difference between the A-9555 and any other amp. People who focus on these types of subtle differences with amplification are just trying to justify their own purchases, IMO.

Thanks for clarifying your position. Since all amps sound the same then it's useless to talk about anything other than the cheapest amp / receiver out there. This simply makes the A9555 a very overpriced piece of equipment to you.

Sorry, but I still don't buy it. In a blind test neither of these guys would be able to tell any difference between the A-9555 and any other amp. People who focus on these types of subtle differences with amplification are just trying to justify their own purchases, IMO. They are the same people who waste thousands on speaker wire, interconnects, stands, and expensive external DACs, none of which is going to make any difference in the final sound quality compared to numerous dirt cheap alternatives that are available today.


To make a broad and false statement that all audio components sound the same is idiotic. That's like saying all car engines run the same. I've listened to dozens of different amp and speaker combinations and each one had a discernible sonic signature.

Thanks for clarifying your position. Since all amps sound the same then it's useless to talk about anything other than the cheapest amp / receiver out there. This simply makes the A9555 a very overpriced piece of equipment to you.

$450 isn't much to pay for an amp. Looking at your equipment profile on the other hand...

That's like saying all car engines run the same.

That's not a very good analogy. There are large observable differences between just about every engine in terms of performance, fuel economy, etc. But in a controlled study nobody can tell the difference between two vastly different amps.

You think every amp sounds unique? Prove it.

$450 isn't much to pay for an amp. Looking at your equipment profile on the other hand...

It still seems quite a lot compared to cheaper pro-amps or used receivers that has more power. So unless you're looking for a pretty faceplate, why spend more when you don't have to? You can do pretty much anything with a $150 used Panny SA-XR57 or $250 SA-BX500 if you think all amps sound the same. Again, perhaps aesthetic value comes into consideration. There's nothing wrong with that as I also chose 30% of my stuff based on looks alone.

I believe in a different philosophy for certain equipments so obviously it's reflected in my selections. Plus, I think my components are quite cheap compared to most here. My total HT/audio related components including the TV's, UPS, and office systems only total up to $6K, all bought brand new. In comparison, a single watch in my collection, let's say a Blancpain Aqua Lung costs exactly the same. If you thought I had spent more, it's all about the power of haggling.

In comparison, a single watch in my collection, let's say a Blancpain Aqua Lung costs exactly the same.

Wow, you must be so proud :rolleyes:

If you thought I had spent more, it's all about the power of haggling.

I didn't mean to imply that your equipment was expensive, merely that much of the money went towards components that don't make a difference. You haggled the 93% profit margin of the "Monster Cable" down to 85%?

if ppl can't hear a different among amps, that is fine and good for them
i wish i can save money by not upgrading amps....

my sister can't tell VHS from DVD video....took me a while, but i'm finally at peace when i realized i can't tell anyone what to see(and hear/feel)

if ppl can't hear a different among amps, that is fine and good for them
i wish i can save money by not upgrading amps....

I have an easy way to solve your problem. Try a blind test. You won't be able to tell a difference and you'll stop wasting your money. It's funny, but not a single person who claims to hear a difference has ever done a controlled blind test.

my sister can't tell VHS from DVD video....took me a while, but i'm finally at peace when i realized i can't tell anyone what to see(and hear/feel)

Not a good comparison seeing that the difference in resolution and audio quality is tremendous. In this case your sister is in the minority.

I didn't mean to imply that your equipment was expensive, merely that much of the money went towards components that don't make a difference. You haggled the 93% profit margin of the "Monster Cable" down to 85%?

No, the Monsters were given to me free. Yes, much of the money goes to room decoration and my mind's perception of decent sound so it's not all about ultimate SQ.

Anyway, if you're here only to talk about the need to prove sound scientifically, then I suggest starting a separate thread as this one is specific to the A-9555. Then you can get your scientists vs cultists fest going Actually you should join this one asap:

http://www.avsforum.com/avs-vb/showthread.php?t=1114207

Going around telling people they're stupid for spending so much money on stuff that gives the same performance doesn't really do any good especially if they've made up their mind to believe. It's like a religion really...

yeah, i think what u said must be 100% true, since i'm sure you can prove it all.
please enlighten me more w/ your facts, please :P


I have an easy way to solve your problem. Try a blind test. You won't be able to tell a difference and you'll stop wasting your money. It's funny, but not a single person who claims to hear a difference has ever done a controlled blind test.



Not a good comparison seeing that the difference in resolution and audio quality is tremendous. In this case your sister is in the minority.

yeah, i think what u said must be 100% true, since i'm sure you can prove it all.
please enlighten me more w/ your facts, please :P

Your response pretty much sums it up. You haven't tried a blind test and you clearly should. Obviously I can't prove anything. But the next time you spend a lot to upgrade something why don't you take a couple minutes to do a blind test with a friend to see if the upgrade actually made a difference you can hear? I'm guessing if you do the test fairly you'll be quite surprised. Or you could just continue to naively throw money at stuff that makes no audible difference ... the choice is yours.

hum, if u can't stand behind your own words....

a man's word is worth something, sorry i'm being old fashion :)

Your response pretty much sums it up. You haven't tried a blind test and you clearly should. Obviously I can't prove anything.

hum, if u can't stand behind your own words....

a man's word is worth something, sorry i'm being old fashion :)

Huh? Sounds like you're scared to test your own gear.

gtommers, come on dude...stop trolling here.
u think everyone on this forum is trying to hook up w/ chicks ?

A/B gears is what we do...

seriously, try to stand behind your words...goes a long way in life

gtommers, come on dude...stop trolling here.
u think everyone on this forum is trying to hook up w/ chicks ?

A/B gears is what we do...

seriously, try to stand behind your words...goes a long way in life

How can I debate somebody that's not even making any sense? You need to lay off the reefer before you troll the forums.

cool, turn out ugly as usually.....

i got a lot of help w/ nice people on this forum, such a Veda
just want to point out the intention of some individual here, so we can go back on topic with 2 ch.

:D

For those that take stuff too literally, let me provide a little clarification: It's funny, but not a single person [I've come across] who claims to hear a difference [with amplification equipment] has ever done a blind test.

Disagree? Give me a counter-example!

cool, turn out ugly as usually.....

i got a lot of help w/ nice people on this forum, such a Veda
just want to point out the intention of some individual here, so we can go back on topic with 2 ch.

:D

I don't think we need your interpretations of my intentions, especially considering you can't even form a sentence :p

It's funny, but not a single person [I've come across] who claims to hear a difference [with amplification equipment] has ever done a blind test.

I'd seriously do that if using my own gears but unfortunately I'm not in US anymore. Regardless this is a never ending debate and you won't accomplish anything here other than both sides resorting to personal attacks. On the other hand, you can just let them be "ignorant", drop your personal crusade to convert the unbelievers, and then everyone's happy. Deal?

On the other hand, you can just let them be "ignorant", drop your personal crusade to convert the unbelievers, and then everyone's happy. Deal?

I don't see why this would lead to universal happiness.

If rationalists don't question the unfounded assertions of the Golden Ear set, the uneducated folks who just want a good sounding system will continue to be told ridiculous stories of how Amplifier G with DAC J and Pre-Amp Q will sound a bit harsh and have an indistinct soundstage but by changing to Pre-Amp S the soundstage will widen, have greater depth, and smoother, milky highs.

For those that take stuff too literally, let me provide a little clarification: It's funny, but not a single person [I've come across] who claims to hear a difference [with amplification equipment] has ever done a blind test.

Disagree? Give me a counter-example!

Would you agree that the the preamp section or preamp could make a difference? If you own the A9555 can you not hear a difference when you use the "Pure Direct" button that bypasses the tone controls(tone controls in nuetral position). I sure can hear can hear a subtle difference toggling it on and off.

Would you agree that the the preamp section or preamp could make a difference? If you own the A9555 can you not hear a difference when you use the "Pure Direct" button that bypasses the tone controls(tone controls in nuetral position). I sure can hear can hear a subtle difference toggling it on and off.

Yes, messing with tone controls or equalization makes a very noticeable difference. But aren't most of us looking to hear music as it was intended (or at least as close as possible) ? If you like to customize your sound then you should probably get a separate equalizer.

If rationalists don't question the unfounded assertions of the Golden Ear set, the uneducated folks who just want a good sounding system will...

Even if I disagree with your preamp example, I have no problem with it but you need to realize that it's useless trying to brainwash the majority of the cultists. You just have to respect their religion really... Besides, it's common knowledge that most of them have plenty of cash to spare for their hobbies and yes most audiophile stuff out there are nothing more than snake oil. If it makes them happy, doesn't hurt anyone (like keeping a mistress), and feeds their ego... why not?

The insistence of the scientists actually led me to believe that perhaps they're just jealous and want to ruin someone else's fun. Or they're a bunch of insecure nerds trying to make themselves feel better by raving on the internet. It could also be that they really don't have good hearings and need data to compensate for their flaws. Anyway like I said we should move this discussion to the Official amps sound the same thread.

Universal happiness is when other people stop meddling in other people's affairs especially when they're not doing anything to harm others. Well actually other than making others jealous for giving $ to shady businessmen.

PS: What is "a good sounding system" to you?

Even if I disagree with your preamp example, I have no problem with it but you need to realize that it's useless trying to brainwash the majority of the cultists. You just have to respect their religion really... Besides, it's common knowledge that most of them have plenty of cash to spare for their hobbies and yes most audiophile stuff out there are nothing more than snake oil. If it makes them happy, doesn't hurt anyone (like keeping a mistress), and feeds their ego... why not?

The insistence of the scientists actually led me to believe that perhaps they're just jealous and want to ruin someone else's fun. Or they're a bunch of insecure nerds trying to make themselves feel better by raving on the internet. It could also be that they really don't have good hearings and need data to compensate for their flaws. Anyway like I said we should move this discussion to the Official amps sound the same thread.

Universal happiness is when other people stop meddling in other people's affairs especially when they're not doing anything to harm others. Well actually other than making others jealous for giving $ to shady businessmen.

PS: What is "a good sounding system" to you?

I think you kind of missed the point. You're free to believe whatever you want and nobody is trying to change that. But there are a lot of other people who will read this thread looking for advice. You're free to post your opinion. I'm free to post mine. I'm not trying to educate you, I'm just trying to prevent you from potentially misleading others.

The insistence of the scientists actually led me to believe that perhaps they're just jealous and want to ruin someone else's fun. Or they're a bunch of insecure nerds trying to make themselves feel better by raving on the internet. It could also be that they really don't have good hearings and need data to compensate for their flaws.

A bunch of very misguided interpretations, but whatever makes you feel better...

hi gtommers, i see u still spend lots of time on this thread.
u already enlighten me, but guess there is many more people need ur help

please carry on...

You're free to post your opinion. I'm free to post mine. I'm not trying to educate you, I'm just trying to prevent you from potentially misleading others.

Like I said, you can do it in a thread specific for that very discussion. Or you can easily choose another amp thread. All I'm asking is don't ruin this one and turn it into a major discussion that has nothing to do with this particular product.

A bunch of very misguided interpretations, but whatever makes you feel better...

Vice versa.

hi gtommers, i see u still spend lots of time on this thread.

I already told him that this is the wrong thread to talk about this topic as it encompasses something larger. So if he stays it's either he has other intentions or his fiery malice towards audiophiles is blinding him. Anyway, let's move on.

Like I said, you can do it in a thread specific for that very discussion. Or you can easily choose another amp thread. All I'm asking is don't ruin this one and turn it into a major discussion that has nothing to do with this particular product.

The Most Holy and Devout Parishioners of the Worldwide Church of Audio use any and all of these forums to preach their Gospel of Audio Salvation. Do they want the rest of us restricted to a "Free Speech Zone"?

I already told him that this is the wrong thread to talk about this topic as it encompasses something larger. So if he stays it's either he has other intentions or his fiery malice towards audiophiles is blinding him. Anyway, let's move on.

Sorry Veda, I didn't realize you were moderating these boards. Or the owner of this thread. Or wait...

If you don't like the discussion in this thread why don't you go somewhere else. Clearly you're interested in finding a thread where others agree with everything you say and praise your equipment choices to boost your ego. I can only speculate why you need this kind of reassurance, but I'm sure it's not good.

The Most Holy and Devout Parishioners of the Worldwide Church of Audio use any and all of these forums to preach their Gospel of Audio Salvation. Do they want the rest of us restricted to a "Free Speech Zone"?

Certainly not, I'm only asking that you know your boundaries. Would you enter a running mass in church denouncing God? The parishioners you mentioned are mostly dealers or people affiliated with making the snake oil business work. You're free to go ahead and shoot them if you'd like.

Clearly you're interested in finding a thread where others agree with everything you say and praise your equipment choices to boost your ego.

Before making a fool of yourself, seeing that you're new here, perhaps you should go back and reread my posts where I actively told others about the flaws and cons of my current equipments. I have zero problem with people talking crap about my stuff or the A9555 which I don't own, certainly people's taste differs and no equipment's perfect. I'm not one of those audiophiles who think they have the greatest sounding stuff because of a huge price tag and pretty cable jacket. You need to stop throwing assumptions just to win a discussion. It's pathetic.

Anyway, you insisted on keeping alive a topic that doesn't belong in this particular thread. I tried many times to tell you in a polite and gentle way. Why is it so hard for you to grasp? Though I must mention a few things that doesn't go well with your belief:

1. The fact that you think the A9555 isn't an overpriced amp when there are others that to you sound just as good for way cheaper. Then why the interest in this amp or this thread? Any other intention is clearly no good.

2. "But aren't most of us looking to hear music as it was intended (or at least as close as possible) ?" What makes you think high end amp makers don't tune the sound even if the amp is lacking tone control as to provide a "house sound". You really think cheap amps aren't guilty of the same thing? If you don't think so reread #1.

Bottomline:

1. This amp is certainly not for you. *focus now* If all amps sound the same and this piece isn't overpriced, then don't bother telling people they've been scammed when you're in the same position. Don't contradict yourself and be a hypocrite.

2. I tried to stay on finding the solution to the discussion but you kept throwing personal attacks at me and others. If it's personal, feel free to private msg me. If not, I've pointed you in the right direction for the topic that you like to discuss about. So feel free to join the Official all amps sound the same thread. You don't have to be afraid.

OK, what's left to talk about? You want to impugn my character by twisting my words and making wrong presumptions? That's hardly constructive and beneficial to others or to me. But if it feeds your ego and makes you feel better, again feel free to PM me. Also, commenting on someone's poor English skills will certainly make you feel better but it's a personal attack that has nothing to do with the discussion at hand. It's also a valid evidence for reporting you to the moderators.

You can start on contributing by actually telling us what you like in building your system or even by stating your equipments. Or maybe your background in this hobby. Or you can tell us whether the very existence of your screen name (the latest one perhaps) is to go around telling people all amps sound the same. Just the truth please.

Having visited this thread on occasions, I was surprised to find the unnecessary attacks on Veda and others. I find his comments entertaining and also on occasions, enlightening. As for the impugning of characters, whatzup with that?

I did "audition" the amp at J&R awhile ago and while I was in general, moderately impressed, I also had to deal with the limiting conditions in the sales room, so chalked off some of the negative feelings to that. For the record, I went with HK amp (with two digital inputs) and stayed with it. However, I have always been curious about the O-9755, and the fact of its scarcity certainly adds a element of mystique to the amp. However, as soon as we see it displayed, we might come away with a slight disappointment.

Nevertheless, this thread serves its purpose and I appreciate it.