Rgs92,
"Will the Oppo (105)'s digital volume control work if I connect it via the analog outputs to my preamp if I choose this method?"
Yes, the Oppo's digital volume control will adjust both the 'Dedicated Stereo' balanced and unbalanced outputs as well as all the unbalanced surround analog outputs. I'm not sure what kind of preamp or pre/pro your thinking of using, but the Oppo eliminates the need for both in most cases. I no longer use my 2-ch preamp with ht/passthru and my high quality separate surround preamp/processor since inserting the 105 in my system.
If you let me know what type of preamp, I could tell you if you could do the same.
"Does using this digital volume control detract from the sound quality in anyone's experience?"
The Oppo's digital volume control utilizes 32 bits for that exact reason; not affecting the audio signal. In my 1 month experience with the 105, I can verify that the volume control does not detract from the sq using any input and the Oppo 105's sound quality as a preamp is excellent. I found that when my good sounding VTL preamp was included in my system, it did detract from the sq when compared to removing it and connecting the 105's 'Dedicated Stereo' outputs directly to my main amp via xlr cables.
This was a hard decision since I've loved and enjoyed the sq of my VTL, with nos Mullard tubes, in my system for the past 5+ years. But my goal for my system has always been sq 1st so I made the choice as objectively as possible based solely on sq performance. I'm not actually complaining, though, since I now have better sound and sold my VTL and pre/pro for about the same $ I paid for the Oppo.
If you buy the 105, you'll probably be making a tough decision, too.
FWIW,
Tim
"Will the Oppo (105)'s digital volume control work if I connect it via the analog outputs to my preamp if I choose this method?"
Yes, the Oppo's digital volume control will adjust both the 'Dedicated Stereo' balanced and unbalanced outputs as well as all the unbalanced surround analog outputs. I'm not sure what kind of preamp or pre/pro your thinking of using, but the Oppo eliminates the need for both in most cases. I no longer use my 2-ch preamp with ht/passthru and my high quality separate surround preamp/processor since inserting the 105 in my system.
If you let me know what type of preamp, I could tell you if you could do the same.
"Does using this digital volume control detract from the sound quality in anyone's experience?"
The Oppo's digital volume control utilizes 32 bits for that exact reason; not affecting the audio signal. In my 1 month experience with the 105, I can verify that the volume control does not detract from the sq using any input and the Oppo 105's sound quality as a preamp is excellent. I found that when my good sounding VTL preamp was included in my system, it did detract from the sq when compared to removing it and connecting the 105's 'Dedicated Stereo' outputs directly to my main amp via xlr cables.
This was a hard decision since I've loved and enjoyed the sq of my VTL, with nos Mullard tubes, in my system for the past 5+ years. But my goal for my system has always been sq 1st so I made the choice as objectively as possible based solely on sq performance. I'm not actually complaining, though, since I now have better sound and sold my VTL and pre/pro for about the same $ I paid for the Oppo.
If you buy the 105, you'll probably be making a tough decision, too.
FWIW,
Tim