Any opinions on the AMR Digital Processor 777 Dac?

Audiofun, thanks for the tip on iFi iTube, I am very tempted to try it and am trying to overcome my reservation of adding a zero gain device to enhance the sound as I had tube buffers before. This implies an additional set of expensive interconnects and the reservation that something gets "lost during the translation". Which ICs do you use between transport and DAC, DAC to iTube and iTube to amp(s)?
I am using NordOst Valhalla as PC and hope to add more body with a HiDiamond P4 shortly, loosing some speed and maybe resolution in the process.

I promise you wont lose anything and I also hold that simpler is NOT always better :)

I make my own highly sheilded high band-width interconnect and digital cables.

FYI, the iTube is LIGHT YEARS ahead of former buffers I have tried in the past such as the Musical Fidelity to the point they should not be compared (IMHO).

Correction: "shielded"

Hi Audiofun, would you care to share your insights on your DIY ICs? And to which known brands IC have you compared them? Anychance of making your own magnetic cables? I have the HFC CT1-E throughout my system and love to have a CT1-U comparable cabling.

Back to the SE upgrade, none has one yet?

On audiofun's endorsements, I ordered the iTube, got it today and will evaluate it more for a couple of weeks.

Between my NAD M51 and ATC P1 power amp, these are my initial findings: after level-matching from going balanced to single-ended, I do feel some transparency is lost with the iTube as a straight buffer with no gain (so am glad to confirm the M51 preamp is doing a good job). This is also the case/worse when using it as a preamp with gain.

The "digital antidote" feature is subtle. It mildly softens/rubs out the sharpest leading edges of treble notes, like layering in a low-powered unsharp-mask filter in Photoshop. Tried this on some songs that have clear peaks but the M51 doesn't need this affect as it's not screechy-sounding in the first place, and honestly, where sections of music do have piercing notes, they should be reflected accordingly! If your gear is sounding annoyingly peaky all the time, then maybe something else needs fixing rather than attenuating transients.

The last feature - the 3D HolographicSound - works as described and is novel/fun to play around with, in both "normal" and "desktop" mode. I need to listen to less electronic music to get a full take on it.

Don't get me wrong, I am NOT an accuracy above musicality freak at all. I do favor naturalness and fidelity.

Guess I'd put it like this, when we're all following the same JRiver setup guides, turning off all DSP and playback options, and eschewing treble or bass controls in our pre-amps...but ignoring say room acoustic treatments which are much more dramatic, what are we doing?!

My summary of the iTube is that it's really only suited for single-ended DACs with pre-amp sections that are bad in all the areas it addresses!