Oppo BDP-105 "Sound Quality" Check Thread for Audiophiles - Page 58 - AVS Forum
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post #1711 of 1737 Old 09-28-2014, 10:41 AM
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Jadis:
Eingangsempfindlichkeit 200 mV, Eingangsimpedanz >100 kOhm.

Rotel:
Eingangsimpedanz/-empfindlichkeit 22 kOhm/1,5 V
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post #1712 of 1737 Old 09-29-2014, 12:51 AM
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In regards to input impedance, I read that the XPA-1 has 33 kohms balanced as opposed to 23.5 kohms unbalanced, so I brought some cheap rca to xlr adaptors for the Cambridge, and to my surprise it sounds better through the balanced inputs using the adaptors, fidelity hasn't changed, but dynamics have improved across the board.

I thought this must have been due to the greater input impedance of the xlr inputs, until I realized that those specs were for the gen-2 XPA-1, I have the gen-1, and the input impedance of the balanced input is actually less, 18 kohms balanced, as opposed to 20 kohms unbalanced.
So that's got me confused, but either way I'm definitely going to stay with the xlr connection, so I've brought some Cardas clear rca to xlr adaptors to see if they're an improvement over the cheap hosa adaptors.

Anyone got any idea why dynamics would improve on the balanced inputs when it's not even receiving a balanced signal on those inputs?

Last edited by guzz46; 09-29-2014 at 12:56 AM.
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post #1713 of 1737 Old 10-15-2014, 02:02 PM
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hi y'all, I'm ready to buy this oppo 105. though I just read one guy was playing an external hard drive through the USB port and some noise came through and fried his tweeters. he then thought he could trace the problem to ripping the files with EAC. but then, a different guy said he heard some nasty noise coming through his speakers while playing a blu ray and he quickly shut off his system and it was ok. I know these posts were from a year or so ago, but was just wondering, have these issues been resolved and are they very common? has anyone ever experienced this problem while playing just a regular CD or DVD-audio? thanks, john (I want to buy this player but I have expensive speakers and I can't risk any funny business going on)
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post #1714 of 1737 Old 10-15-2014, 03:50 PM
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^ If this were a common problem you'd be seeing way more howls posted here and in the 105 Owner's Thread. There are lots of folks using these players in setups with spendy speakers.

Given the complexity of content authoring and of the gear that gets hooked together to make a system, it's never possible to say with absolute surety that there can never be an audio glitch. But it's not something that seems to be a constant worry for anybody.

If you depend upon a low Volume setting for normal listing, do be sure to check your Volume before playing content after a firmware install or Reset of the player, lest you get startled by an unexpected Volume 100.
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post #1715 of 1737 Old 10-15-2014, 06:39 PM
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I would be playing through a pre-amp, so would the volume control come in to play for me? isn't it just set at a line level?
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post #1716 of 1737 Old 10-15-2014, 06:59 PM
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Volume 100 (or "FIXED") is full output -- line level. That's typically what you would use feeding the inputs of a pre-amp. Do volume control in the pre-amp.

However, if you find you are hearing clipping in loud passages, your pre-amp may not have a normal amount of headroom. So lower Volume in the OPPO a few dB to prevent that. Each volume step is -0.5dB attenuation.

The Volume adjustment only affects the Analog audio outputs (except for Volume 0, which is implemented as Mute and also shuts down the Digital audio outputs.)
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post #1717 of 1737 Old 10-16-2014, 07:18 AM
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well, my pre-amp is the emo XSP-1 gen 2 so I think I'd probably be safe in the headroom department, and be able to play the OPPO with the volume on 100.
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post #1718 of 1737 Old 10-30-2014, 02:51 PM
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Hi I just hooked up my 105 to a NAS via LAN cable and am trying to compare this to the USB drive I have been using, the only difference I hear is that the USB port is about 4db quieter than the LAN connection is this normal? Makes it hard to do an A-B comparison. the oppo 105 is outputting to my Classe' via HDMI, do any of you think the balanced outs sound better? both drives have only FLAC files.
Thanks
Mike
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post #1719 of 1737 Old 10-30-2014, 03:20 PM
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Oppo BDP-105 "Sound Quality" Check Thread for Audiophiles

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Originally Posted by jmhenrie View Post
Hi I just hooked up my 105 to a NAS via LAN cable and am trying to compare this to the USB drive I have been using, the only difference I hear is that the USB port is about 4db quieter than the LAN connection is this normal? Makes it hard to do an A-B comparison. the oppo 105 is outputting to my Classe' via HDMI, do any of you think the balanced outs sound better? both drives have only FLAC files.
Thanks
Mike

[emoji50][emoji50][emoji50][emoji50] It pains me to hear of a 105 owner using only the digital outputs of this amazing player. The biggest reason to opt for the Oppo 105 as opposed to the 103 is to utilize the 105's audiophile DAC's, and the only way to do that is to use its analog outputs. If you only use the 105's hdmi output to listen to audio, then you are simply transporting/repackaging the digital audio to another source (i.e. your Classe) and utilizing your downstream source's own DAC. I realize a Classe is a high end component, and probably has a great DAC section, but if you knew you would only be sending digital streams to your Classe, then the 103 would have been the better choice. Hey, it's only money, right? [emoji23] Seriously, you should at least try out the 105's analog outputs, and compare for yourself. Save the hdmi output for watching movies. Use the analog outputs for high-end audio. As for your 4db difference between usb and LAN, I don't have a quick answer, since you're using only the 105's hdmi output. The Oppo players don't control volume for its digital outputs. Volume is only for the analog outputs and headphone output.
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post #1720 of 1737 Old 10-30-2014, 04:08 PM
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Quote:
Originally Posted by jmhenrie View Post
Hi I just hooked up my 105 to a NAS via LAN cable and am trying to compare this to the USB drive I have been using, the only difference I hear is that the USB port is about 4db quieter than the LAN connection is this normal?
I'm not sure we have enough info to give you a definitive answer, but the most likely explanation is that you're connecting to a DLNA server on the NAS and it's converting your FLAC files to another format to send to the Oppo. If the Oppo is actually receiving the same FLAC file in both cases, the volume levels should be identical.
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post #1721 of 1737 Old 10-30-2014, 04:24 PM
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Quote:
Originally Posted by gsr View Post
I'm not sure we have enough info to give you a definitive answer, but the most likely explanation is that you're connecting to a DLNA server on the NAS and it's converting your FLAC files to another format to send to the Oppo. If the Oppo is actually receiving the same FLAC file in both cases, the volume levels should be identical.

Thanks for the Answers so quickly,
I will have to rummage around and find a set of Balanced cables to compare DACS it sounds like.
My NAS is a Synology 245 play (i think) and i did a direct copy from my usb hard drive to it I currently have no computer hooked up in the Network. I know that the Usb hard drive music says Flac on the Oppo screen when playing, not sure about the NAS though, I will check tonight.
Cheers
Mike
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post #1722 of 1737 Old 10-30-2014, 05:09 PM
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You can always go into the "mode" section of your menu and run your Classe in "bypass mode" with a pair of balanced cables and listen that way. I listen to music thru my SSP-800 using the balanced analog inputs. I have also run the BDP-105 straight into my amp. I preferred the Classe as it has more midrange presence and better detail in the high end. The Oppo more high and low end detail. If I can describe it less forward in it's stage presentation. The bass was really good with the Oppo. However when comparing both the Classe to me sounded warmer overall. The Oppo has a sounding great DAC. It is however not Jack the Giant slayer all of the time. The majority of people replying on here replying have never ever heard the Classe. Just my opinion.
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post #1723 of 1737 Old 10-30-2014, 07:22 PM
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I used balanced analog connections between my 105 and Classe SSP-800 running in bypass mode. Use my LAN from my server running Jriver with no transcoding of any native formats. Can tell you my noise level from JRiver server is inaudible. That's no surprise because the noise level using HDMI is also inaudible. i just compared same DSD file using usb thumb-drive or LAN and no audible difference, just black background.

I changed from RCA to balanced connections early on when I got the 105 because I had a slight noise problem. With equipment of this caliber there is no excuse for noise. I also used all balanced connections from my ssp-800 to my classe CA-5300 and that last cabling change made my background black.

Another source of noise may be your electrical power source for the NAS and for your 105 and ssp-800 and power amp. I had five dedicated 20A circuits installed for my audio rack, my two svs 13 ultra subs, and my JRiver server upstairs. Finally I installed a PS Audio Perfectwave Powerplant 5 for everything in my rack except the amplifier, which has its own dedicated 20A circuit. Yes I have a substantial investment in the electrical systems for my audio and home theater systems, but that's how important a black noise background is to me. YMMV.

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post #1724 of 1737 Old 10-30-2014, 08:46 PM
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wadeh911,

I am doing something similar to what you have done regarding power and how you have your equipment setup. It makes a huge difference in playback. The dedicated lines on my amps and dual subs plus the addition of running a true balanced system was the largest improvement so far.
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post #1725 of 1737 Old 10-31-2014, 12:42 PM
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I tried both XLR and RCA connections from the Oppo 105 to a Cary Cinema 11a and heard no difference. Now I have both XLR and RCA connections from the 105 to a Parasound JC-2. The JC-2 pads XLR input, so I can switch inputs while playing a disc with no level change. I hear no difference between XLR and RCA with the 105 to JC-2 connections. The noise floor of the system is inaudible to me whether the source is turntable, disc players, or satellite.

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Thorens TD 124, SME Series III arm with Ortofon SME 30 H cartridge into Parasound JC-3 phono stage
Ayre C-5xeMP, Oppo BDP-105, & Sony XA5400ES disc players
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post #1726 of 1737 Old 11-03-2014, 11:03 AM
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Any of you guys have experience with these XLR cables on the BDP-105:


Kimber Hero
AudioQuest Yukon
Real Cable Cheverny II

Prices are the same, except that the Real Cable is currently on 50% discount.



cheers
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post #1727 of 1737 Old 11-03-2014, 07:40 PM
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Typo
Quote:
Originally Posted by Webmonkey View Post
Any of you guys have experience with these XLR cables on the BDP-105:


Kimber Hero
AudioQuest Yukon
Real Cable Cheverny II

Prices are the same, except that the Real Cable is currently on 50% discount.



cheers
I'm very happy with my Blue Jean XLR's on my 105

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post #1728 of 1737 Old 11-03-2014, 11:21 PM
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Quote:
Originally Posted by guzz46 View Post
In regards to input impedance, I read that the XPA-1 has 33 kohms balanced as opposed to 23.5 kohms unbalanced, so I brought some cheap rca to xlr adaptors for the Cambridge, and to my surprise it sounds better through the balanced inputs using the adaptors, fidelity hasn't changed, but dynamics have improved across the board.

I thought this must have been due to the greater input impedance of the xlr inputs, until I realized that those specs were for the gen-2 XPA-1, I have the gen-1, and the input impedance of the balanced input is actually less, 18 kohms balanced, as opposed to 20 kohms unbalanced.
So that's got me confused, but either way I'm definitely going to stay with the xlr connection, so I've brought some Cardas clear rca to xlr adaptors to see if they're an improvement over the cheap hosa adaptors.

Anyone got any idea why dynamics would improve on the balanced inputs when it's not even receiving a balanced signal on those inputs?


Because balanced connection is double the output compare to se. Also balanced connection bypasses alot of circuits vs se, which results less noise.
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post #1729 of 1737 Old 11-03-2014, 11:25 PM
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Has anyone done a comparison with Oppo 105 dac vs audiolab mdac using balanced connection?
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post #1730 of 1737 Old 11-04-2014, 10:06 AM
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Quote:
Originally Posted by NAIM101 View Post
Because balanced connection is double the output compare to se. Also balanced connection bypasses alot of circuits vs se, which results less noise.
The volume level was the same between xlr and rca, I read some where that the xlr adapter only uses the hot leg so the voltage remains the same, but bypassing circuitry could be the reason .
Thanks
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post #1731 of 1737 Old 11-22-2014, 06:30 PM
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Another Match Up

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Originally Posted by DanF8500 View Post
^ I think the pairing will pose no issues. Another factor to look at is the input sensitivity of the amp. For the Anthem P5, it is 1 Vrms. The 103/105 put out 2.1 Vrms out their rca's. Those players will put out 1 Vrms at around a 6 dB reduction of their max volume (100). This equates to about 12 volume steps/clicks of the 103/105's volume control. So, the voltage divider (voltage attenuation) created from the output impedance of the 103/105 (100 Ohms) and input impedance of the Anthem P5 (18 K Ohms) is fairly small, which means you should be able to reach the Anthem amp's max output (if you so desire) near a 103/105 volume just shy of 90, with room to spare.

Reports from owners who have connected their Oppo players direct to amps have been mixed. A few say they have maxed out the Oppo volume control and wish they could increase vol a little more for quieter passages of classical music or a low output audio disc, while most say they have more than enough reserve volume, and typically listen with volume in the 40-80 range.

I've read that Oppo recommends a 47K input impedance for a load, so just about anything at or over 47K will pose no issues. That's not to say a load of a little under 47K won't work...it's just not ideal.

There's other factors that I will not discuss that can affect fidelity between player/amp (i.e. load on the output amp stage of the 105). If you want more details, read Official OPPO BDP-105 Owner's Thread post 8287 in the 105 owner's thread by Laird Wiiliams.
I'm also planning on running my 105 as a pre-pro and have been looking at amps that would match up well. Given their respective specs, would the Classe CT-2300 (or CA-2300) match up well with the 105?

Thanks for your time.
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post #1732 of 1737 Old 11-22-2014, 06:41 PM
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Quote:
Originally Posted by Jmen7 View Post
I'm also planning on running my 105 as a pre-pro and have been looking at amps that would match up well. Given their respective specs, would the Classe CT-2300 (or CA-2300) match up well with the 105?

Thanks for your time.

Why not just visit the Classe site and check the input impedance of the amplifiers and you have your answer! You now know the output voltage of the Oppo. If you are asking how it will sound, only you can answer that question.
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post #1733 of 1737 Old 11-22-2014, 07:09 PM
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I've done that, thanks. There's other specs such as the Classe's input level at clipping (1.88v), which I also wanted to understand a bit better (it's impact overall with the Classe and Oppo's impedance factors). If I could have answered my own question by just looking at numbers, I wouldn't waste anyone's time. However, there are are others who understand this much better and can give helpful and informed responses...which is why I asked.
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post #1734 of 1737 Old 11-23-2014, 01:38 AM
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Quote:
Originally Posted by Jmen7 View Post
I'm also planning on running my 105 as a pre-pro and have been looking at amps that would match up well. Given their respective specs, would the Classe CT-2300 (or CA-2300) match up well with the 105?

Thanks for your time.



Hi,




Both Classe amps you mention have input impedances of 50 Kohms which is not a problem for the OPPO at all


I am unsure what effect the 1.88 V input clipping figure will have on the sound though.


Cheers,


JohnL
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post #1735 of 1737 Old 11-24-2014, 07:24 AM
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Quote:
Originally Posted by audiofan1 View Post
Quote:Originally Posted by Kyhl 

When you say
Can you talk to that point a little. I know it is a bit off topic but I would like a frame of reference. I've been reading these 105 threads with great interest before pulling the trigger.

What I am wondering is when you say well treated, does that mean you measured frequency sweeps of your room and targeted treatments where they were needed, or did you do the standard corner, quarter, half wall and first reflection placements?


No measurements! but years of toeing raking moving the listening position back or forth just to get a proper stereo image first in my 20x21x8 room with 2 openings in the rear right side and a large fire place in the front left corner it was tricky but in the end all the efforts where worth it, as a rule of mine I set up my gear for stereo playback and multich second and have always had good results vs. the latter, Iv'e found a well recorded DSD dics in pure or the direct setting confirms for me when its set up properly. The room treatments I speak of as well required fine tuning as well, placing a panel at the first reflection point and bringing it up or down can impact the sound! I've found with the two first reflection pannels which are 48x24x2 to work best 18" off the floor in my room (go figure) I also have the front sound stage wall covered with 3 24x24x2 panels and the worked best 1 1/2' from the ceiling and 1 1/2' from the side walls, I only have 3 corners to bass trap and for those the front I use 2 24x24x4 open back pannels at 18" from the floor. The rear left corner is where I use a GIK 7" monster bass trap 48x24 as this is where my room receives the heaviest load from bass and the last pannel in the room is a 48x24x4 open back bass trap 6ft from the MLP. The room is carpeted and with addtion of the panels bass trapa especially the favored 50hz hump was smoothed out ( my only confirmation was the Anthem AVM 20's mode correction feature and an spl meter other wise I did it the hard way trail and error and to my taste. This was my reference point prior to the addition of Audyssey and was great with the Anthem / Oppo 95 combo. I do plan on measurements once I try the pro kit but in the end my ears will always be the final judge

Hope this helps!
I have an AVM20 as well. Can you explain exactly how you adjusted things? I have a meter as well.
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post #1736 of 1737 Old 11-24-2014, 11:48 AM
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Quote:
Originally Posted by fmzip View Post
I have an AVM20 as well. Can you explain exactly how you adjusted things? I have a meter as well.
If I'm not mistaken , the way to use the notch filter for the sub in the avm 20 is play back the test tones at the various frequencies and see which on the spl meter is the loudest, for my room it was around 30 & 50hz with the later being the higher so I used the the filter which has a width and height setting I believe to get all of the tones as equal as possible on the meter . Play around with the height and width setting when you find which room node is the highest it could be say 55-60 hz or so. Once done playback some content to find which setting sounds best. Its not a full correction suit but still good none the less and a widely unused feature in the avm 20
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post #1737 of 1737 Old 11-24-2014, 06:27 PM
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Oppo BDP 105 v. Benchmark DAC2`

I just purchased a BDP-105 that replaced the following three components:

1. Benchmark DAC2-HGC (ESS Saber DAC)
2. Denon DVD-3930CI
3. Samsung Blue-Ray player.

From an audio-only perspective, I find that CD quality is similar to the Denon/Benchmark combination. SACD discs are clearly improved using the Oppo. HDCD is better with the Oppo then the Denon/Benchmark combo. Hi-res replay through a Squeezebox Touch seems slightly improved (Coax In). DSD files through either the front USB port are great and give me the ability to play dsf files without encoding them via DOP.

I have also implemented the Oshare DLNA server. Sound quality is excellent for all file types and control is pretty easy via the Oppo iPhone Media app.

Previously, my 2 channel setup was either the Denon DVD (SACD, HDCD, and CD capable) or the Squeezebox Touch into the Benchmark DAC2 HGC which acted as a pre-amp with a motorized analog volume control. Output was to a Linkwitz Orion ASP active crossover into multiple power amps and onto the Linkwitz Orion dipole speaker system.

The BDP-105 replaced the Denon/Benchmark combo and has, as discussed above, a DLNA connection as well as the Logitech SBT. I find that the Benchmark volume control was pretty cumbersome with the supplied remote, and I prefer the Logitech volume control. The Oppo's analog stereo outputs are used to feed the Orion ASP.

Not that it matters here, but the video on the Oppo beats both the Denon for DVD and the Samsung for Blu-Ray, feeding a Denon AVR-3808 for home theater and multi-channel audio use via HMDI.

The bonus in all of this is that I sold the Benchmark for significantly more than the Oppo cost.
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