Official Emotiva XPA-5 Owners Thread - Page 74 - AVS | Home Theater Discussions And Reviews
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post #2191 of 2219 Old 02-04-2015, 07:19 AM
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I have heard Running an amp not just Emotiva with highly efficient speakers like Klipsh can cause a hiss or buzz. I run a XPA-3 gen 1 and do not have the hiss or buzz with my Klipsch's, but have read reports of the problem. Also odd that it would only be a select couple channels, so I would assume it's the amp. Can I ask you did you notice any improvement in sound quality with the Emotiva? I did not, even though I still run it. My HK seemed to do the job itself, just wondering if your Marantz did also. I do notice a hiss when my receiver goes into LOGIC 7 surround mode, but that is HK's brand of taking non Dolby Digital signal and try making it surround, I assume this is where the problem lies for me
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post #2192 of 2219 Old 02-04-2015, 07:48 AM
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I tested the inputs by cranking the volume with no source so I could just here that static noise. Then while I was playing around with the rca I found it was the two inputs farthest from each other. When it was just one or two rca they all worked fine but when all 5 are connected I get the Buzz through my speakers out of those two channels. And I confirmed it was those two by switching the surrounds from those inputs to the front and then my front speakers had the noise. So it's definitely my amp. Just thought it was a grounding issue or something. Still doesn't explain why my amp itself makes noise lol. When I shut it all off and it's in stand by it hisses I can only hear this when I'm close but it just doesn't seem normal to me. And with the marantz powering my speakers I still have great sound quality but less impact. I'm relying completely on my sub right now for bass. Where I listened to something at 35 with amp now takes 50 to 55 for the same sound. Although I haven't got to rerun audysee yet either
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post #2193 of 2219 Old 02-04-2015, 07:53 AM
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Originally Posted by Romanoandrew3 View Post
I tested the inputs by cranking the volume with no source so I could just here that static noise. Then while I was playing around with the rca I found it was the two inputs farthest from each other. When it was just one or two rca they all worked fine but when all 5 are connected I get the Buzz through my speakers out of those two channels. And I confirmed it was those two by switching the surrounds from those inputs to the front and then my front speakers had the noise. So it's definitely my amp. Just thought it was a grounding issue or something. Still doesn't explain why my amp itself makes noise lol. When I shut it all off and it's in stand by it hisses I can only hear this when I'm close but it just doesn't seem normal to me. And with the marantz powering my speakers I still have great sound quality but less impact. I'm relying completely on my sub right now for bass. Where I listened to something at 35 with amp now takes 50 to 55 for the same sound. Although I haven't got to rerun audysee yet either

When I re-ran room correct after first time hooking up my amp, my listening volumes did not change, or at least not in a noticeable amount. If you re-run let me know how it changes please as I am new to my XPA and external amp set up, thanks

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post #2194 of 2219 Old 02-04-2015, 07:56 AM
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I guess what I'm saying is there was the same sound quality but much more punch and detail if that makes sense lol. And a lot easier on my marantz which I love by the way. But was looking at the denon x4000 and the New onkyo 838 but will prob just stick with this one. I just wish there was a good reliable receiver that packed real power and sq for under 3000 lol. What's frustrating is I was also just checking out dedicated pre amps to go with my emotiva
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post #2195 of 2219 Old 02-04-2015, 07:59 AM
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Will do, oh and by the way. The amp worked perfectly with my klipsch and didn't have any weird noises up until about a week ago. And the noise was coming from the pioneers and when testing everything found that all my speakers and wires are fine.
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post #2196 of 2219 Old 02-04-2015, 08:24 AM
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Romanoandrew3 - Have you considered Emotiva's XMC-1?
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post #2197 of 2219 Old 02-04-2015, 08:47 AM
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Originally Posted by dmb12679 View Post
I have heard Running an amp not just Emotiva with highly efficient speakers like Klipsh can cause a hiss or buzz. I run a XPA-3 gen 1 and do not have the hiss or buzz with my Klipsch's, but have read reports of the problem. Also odd that it would only be a select couple channels, so I would assume it's the amp. Can I ask you did you notice any improvement in sound quality with the Emotiva? I did not, even though I still run it. My HK seemed to do the job itself, just wondering if your Marantz did also. I do notice a hiss when my receiver goes into LOGIC 7 surround mode, but that is HK's brand of taking non Dolby Digital signal and try making it surround, I assume this is where the problem lies for me
I do not hear a hiss once one. In the stratup sequence there is a brief hiss and then it goes silent. I just watched Fury the other night with everything CRANKED, and it sounded great.

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post #2198 of 2219 Old 02-04-2015, 09:07 AM
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Wilbur_the_goose, I have stared and drooled over that thing and I would love to have it. There's just know way I could get away with that with the wife. I've tried to think of every possible way and even just asked her and that didn't work out for me lol
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post #2199 of 2219 Old 02-05-2015, 01:40 PM
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So I rearranged and moved and rewired my whole system and I used the emotivas two channels that I thought we're bad to power the low end in my klipsch r-28f speakers and used the marantz to power the highs and wired the center and surrounds through the emotiva and re ran audysee and everything is working perfect again. I also put a fan behind my marantz and emotiva and the weird sounds went away. I thought it was all weird but hey if it works and doesn't affect my sq then I'm happy
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post #2200 of 2219 Old 02-05-2015, 05:11 PM
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Having trouble with this one - I'd like to add this amp to a Denon X4000 (haven't purchased the X4000 yet, but bear with me here...) and I'd like to know if I'd run into any issues seeing as the Denon puts out 1.2 Vrms from the pre-outs. I don't know if my math is messed up on this, but with the amp's stated gain of 29 dB, would 1.2 Vrms from the Denon's pre-outs be enough to drive this amp to its rated 200 wpc?

The answer would help me make the decision whether or not to buy the X4000 as a pre/pro (looking at the XMC-1 also, but there is a bit of a difference in price) to drive an external amp, and I really like the XPA-5, at least on paper.
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post #2201 of 2219 Old 02-06-2015, 06:24 AM
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Originally Posted by Philm63 View Post
Having trouble with this one - I'd like to add this amp to a Denon X4000 (haven't purchased the X4000 yet, but bear with me here...) and I'd like to know if I'd run into any issues seeing as the Denon puts out 1.2 Vrms from the pre-outs. I don't know if my math is messed up on this, but with the amp's stated gain of 29 dB, would 1.2 Vrms from the Denon's pre-outs be enough to drive this amp to its rated 200 wpc?

The answer would help me make the decision whether or not to buy the X4000 as a pre/pro (looking at the XMC-1 also, but there is a bit of a difference in price) to drive an external amp, and I really like the XPA-5, at least on paper.
The sensivity of the XPA-5 (Rev.2) is 1.8V. I believe this is peak voltage to achieve rated output of 200W for each channel.

While the Denon manual states 1.2Vrms, the peak value of this is 2xrms value so its 2.4V peak. This should be sufficient to drive the XPA-5 to full power. If you don't believe me, grab a digital multi meter and measure the RCA output with the Main Volume at 0dB (reference) while playing pink noise test tone at 60Hz and you'll be sure. Just make sure the mains are not connected when you're carrying out this test.

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post #2202 of 2219 Old 02-06-2015, 06:50 AM
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The sensivity of the XPA-5 (Rev.2) is 1.8V. I believe this is peak voltage to achieve rated output of 200W for each channel.

While the Denon manual states 1.2Vrms, the peak value of this is 2xrms value so its 2.4V peak. This should be sufficient to drive the XPA-5 to full power. If you don't believe me, grab a digital multi meter and measure the RCA output with the Main Volume at 0dB (reference) while playing pink noise test tone at 60Hz and you'll be sure. Just make sure the mains are not connected when you're carrying out this test.
Thanks for the response. I did see where folks were stating RMS at times, and at other times making no such statement leaving the reader to wonder if they might be referring to Pk or RMS, or they just weren't sure. I'd recently read where folks were measuring 4 Vrms out of the pre-outs on their Denon. I can do that measurement with my scope or with a True RMS DMM. This is good news.
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post #2203 of 2219 Old 02-06-2015, 01:27 PM
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Having trouble with this one - I'd like to add this amp to a Denon X4000 (haven't purchased the X4000 yet, but bear with me here...) and I'd like to know if I'd run into any issues seeing as the Denon puts out 1.2 Vrms from the pre-outs. I don't know if my math is messed up on this, but with the amp's stated gain of 29 dB, would 1.2 Vrms from the Denon's pre-outs be enough to drive this amp to its rated 200 wpc?

The answer would help me make the decision whether or not to buy the X4000 as a pre/pro (looking at the XMC-1 also, but there is a bit of a difference in price) to drive an external amp, and I really like the XPA-5, at least on paper.
Did you see this on their website? https://emotiva.com/resources/media/..._gen2_8ohm.pdf
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post #2204 of 2219 Old 02-06-2015, 02:58 PM
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I did not. Nice. Now THIS is good useful information. Thanks!
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post #2205 of 2219 Old 02-07-2015, 12:47 PM
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cabinet

Hey guys, Just ordered the Emotiva XPA-7: any ideas of a media cabinet that will hold this beast? I don't have much room to have a rack. Any suggestion would help...I am looking for something ~60 wide that would hold this, the avr, bluray player, ps4, etc.
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post #2206 of 2219 Old 02-07-2015, 02:27 PM
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Hey guys, Just ordered the Emotiva XPA-7: any ideas of a media cabinet that will hold this beast? I don't have much room to have a rack. Any suggestion would help...I am looking for something ~60 wide that would hold this, the avr, bluray player, ps4, etc.

I got mine off Wayfair center 22.5" wide outer 14.5" inside width for components each, you can buy just the piece under the TV, not sure what it is alone as I bought the towers too, but I would guess $300
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post #2207 of 2219 Old 03-18-2015, 01:24 PM
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Hello there! Any suggestions on where to shop for an xpa-5? Thanks!
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post #2208 of 2219 Old 03-18-2015, 01:40 PM
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Well, other than checking the classifieds for used ones, Emotiva.com sells them direct. If you get it from them you may want to join their club as it offers a discount on products that will offset the cost of joining the club.
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post #2209 of 2219 Old 03-18-2015, 03:13 PM
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Hello there! Any suggestions on where to shop for an xpa-5? Thanks!
Call or send them an email.

I didn't want to wait for the next shipment and they had some warehouse stock for an amazing price + 10% off for eclub.

I will have it on Friday
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post #2210 of 2219 Old 03-18-2015, 06:06 PM
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You'll love it. I paired mine last month with the Emotiva XMC-1.

Easy math:
XPA-5 + XMC-1 = Bliss
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post #2211 of 2219 Old 03-21-2015, 12:33 PM
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You'll love it. I paired mine last month with the Emotiva XMC-1.

Easy math:
XPA-5 + XMC-1 = Bliss
Sir Isaac Newton approves!
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post #2212 of 2219 Old 04-01-2015, 07:09 AM
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I'm thinking this must be an April fool's joke by Emotiva: https://emotiva.com/products/amplifiers/xpa-2-g18

Anyone really have money to burn and willing to donate to Big Dan's retirement fund?
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post #2213 of 2219 Old 04-03-2015, 11:55 AM
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I'm currently running Klipsch KL650 THX Ultras off of an Onkyo 3008. I'm considering adding an Emotiva 3 channel for the mains or more likely a 5 channel for future use with Atmos. If I don't ever listen at reference (usually 5db below though using Audyssey Dynamic eq) do you think I would have any benefit by adding an amp for the mains?

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I'm currently running Klipsch KL650 THX Ultras off of an Onkyo 3008. I'm considering adding an Emotiva 3 channel for the mains or more likely a 5 channel for future use with Atmos. If I don't ever listen at reference (usually 5db below though using Audyssey Dynamic eq) do you think I would have any benefit by adding an amp for the mains?


I too use the same speakers but two 5 channel Emotivas in my rack. Have a third one in the box that I wall add to the rack then everything runs off Emotiva.
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post #2215 of 2219 Old 04-03-2015, 05:59 PM
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I'm currently running Klipsch KL650 THX Ultras off of an Onkyo 3008. I'm considering adding an Emotiva 3 channel for the mains or more likely a 5 channel for future use with Atmos. If I don't ever listen at reference (usually 5db below though using Audyssey Dynamic eq) do you think I would have any benefit by adding an amp for the mains?
That speaker has a claimed sensitivity of 97dB. I'm guessing if you are crossing over to a sub like you're supposed to you'll be using less than 20W at well above reference level SPLs. I have an Emotiva XPR-5 powering my speakers with an 84dB sensitivity and there was no benefit to sound quality over my AVR's internal amp even when running the speakers full range at reference level SPLs.
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That speaker has a claimed sensitivity of 97dB. I'm guessing if you are crossing over to a sub like you're supposed to you'll be using less than 20W at well above reference level SPLs. I have an Emotiva XPR-5 powering my speakers with an 84dB sensitivity and there was no benefit to sound quality over my AVR's internal amp even when running the speakers full range at reference level SPLs.
Yes crossing them to 80 at all 7 channels. Thats pretty much what I was expecting to hear and one of the reasons I have repeatedly opted for an AVR over separates. Thanks.

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I still think the AVR's run out of steam before an AMP does, and I have Klipsch as well. But this is an argument that goes round and round on internet boards.

There was a good post on here several years back by a smart audio guy at the Rocky Mtn Audio Fest where they tested a very efficient speaker. Of course normally, it did not require many watts, but in very dynamic and musical scenarios, it actually started clipping because the amp couldnt hang.

We watch our movies with the Denon set to 0.0 or even +2.0, and the internal amp on the 4520 does not hang as well by my ears as the XPA-3 does, or the Outlaw I used to have.

Long story short, you can throw out my Klipsch only needs 22 watts to do X all day long, but I know what my ears tell me and other research has presented. It is not a cookie cutter answer.

I am not getting any more in the loudness department, but when pushed, the speakers are clean and detailed. Not as much what I hear when I push the AVR.
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Query

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That speaker has a claimed sensitivity of 97dB. I'm guessing if you are crossing over to a sub like you're supposed to you'll be using less than 20W at well above reference level SPLs. I have an Emotiva XPR-5 powering my speakers with an 84dB sensitivity and there was no benefit to sound quality over my AVR's internal amp even when running the speakers full range at reference level SPLs.

These technical issues get past me, but I keep reading, and I manage to retain some knowledge. I have two NAD Amps that are now powering my fronts and two center channel speakers, and a Sunfire amp powering my surround. My Pioneer 7 channel AVR is only driving the rear surrounds. I have been looking at the XPR-5 for my surrounds or maybe the front and center. Here is my question: If I were to purchase a Marantz 7009, a nine channel amp, and used it only to power four Atmos speakers, how many watts would I develop if the specs say it produces 125 watts with two channels running? It seems to me there would be more than enough power for Atmos, but as I said at the beginning - what do I know?


My fronts are Cornwalls (98db) and the two centers are Heresies (97db). The surrounds are KG 1.5 (90db). All speakers are 8ohms
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These technical issues get past me, but I keep reading, and I manage to retain some knowledge. I have two NAD Amps that are now powering my fronts and two center channel speakers, and a Sunfire amp powering my surround. My Pioneer 7 channel AVR is only driving the rear surrounds. I have been looking at the XPR-5 for my surrounds or maybe the front and center. Here is my question: If I were to purchase a Marantz 7009, a nine channel amp, and used it only to power four Atmos speakers, how many watts would I develop if the specs say it produces 125 watts with two channels running? It seems to me there would be more than enough power for Atmos, but as I said at the beginning - what do I know?


My fronts are Cornwalls (98db) and the two centers are Heresies (97db). The surrounds are KG 1.5 (90db). All speakers are 8ohms
No 7009 specs but use this as a approx guide

http://www.soundandvision.com/conten...ver-test-bench

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