Mribob,
I have listened to and auditioned everyone of the pieces you mention, with the exception of the Ayon CD-55, and still have not heard a better sounding DAC then the Accustic Arts Tube Hybrid reference DAC.
Now there might be "two monkey wrenchs" for you: 1) the AA Tube Hybrid does not have a volume control, so you will still have to use a preamp. 2) I only care about redbook CD not high res material, and with no doubt the AA DAC is much more musical/natural sounding then the others on your list for me. This DAC can be setup so you can run high res material through it and I still thinks it sounds better then the other DACS, even when the bit rate has been taken down/back to redbook standard. The last piece I auditioned was the Playback Design and reminded very much of Meitner gear, which I still find very transparent/detailed but not as musical as I like.
Finally, you might want to take a look at my thread here on the GON on reference DACS that has a great amuont of information about what your asking about.
I have listened to and auditioned everyone of the pieces you mention, with the exception of the Ayon CD-55, and still have not heard a better sounding DAC then the Accustic Arts Tube Hybrid reference DAC.
Now there might be "two monkey wrenchs" for you: 1) the AA Tube Hybrid does not have a volume control, so you will still have to use a preamp. 2) I only care about redbook CD not high res material, and with no doubt the AA DAC is much more musical/natural sounding then the others on your list for me. This DAC can be setup so you can run high res material through it and I still thinks it sounds better then the other DACS, even when the bit rate has been taken down/back to redbook standard. The last piece I auditioned was the Playback Design and reminded very much of Meitner gear, which I still find very transparent/detailed but not as musical as I like.
Finally, you might want to take a look at my thread here on the GON on reference DACS that has a great amuont of information about what your asking about.