I have the Signature DAC IV with volume and 384K USB input.
My digital search began in 2008 when I decided to jump into computer audio with both feet. My first high-end solution was an Esoteric D-05 with G-03X clock. Excellent sound and of course, Esoteric equipment is built like a tank. When PS Audio launched their DAC/Bridge streaming solution, I was fortunate enough to be selected as a Beta Tester. It seemed like a perfect solution with file storage elsewhere (the basement in my case with my listening room on the 2nd floor). The sound bested the Esoteric and streaming was super convenient, but I became disenchanted with a number of issues, gapless playback being the primary detractor. That's when I began looking at other solutions.
I was able to audition the following DACs in my system while I still had the PWD:
Weiss DAC202
Meitner MA-1
Playback Designs MPS-5
MSB Platinum DAC IV
The Weiss sounded good, better than the PWD, but not signficantly.
The Playback Designs was an older unit and limited to 16/48 via USB. It sounded terrible. . .after 10 minutes I removed it from my system.
The Meitner sounded fantastic and would have been a keeper, but it lacked some of the functionality (volume, phase inversion) that I wanted. I was also interested in future upgrades, and wasn't sure what would be available from Meitner.
The MSB played at a level above the Meitner, and provided the functionality I wanted. My audition was with the base Platinum version, and I purchased the "mid-level" Signature.
I posted on Computeraudiophile about this comparison last year:
http://www.computeraudiophile.com/f...-ma-1-dac-review-11664-post150560/#post150560
I've never been very good at the typical audiophile terminology. The MSB just sounds "right". . .at times I'm started by the realism as it sounds like someone's in the room with me. I have acutally jumped out of my seat thinking someone was there.
Hope this helps. . .
Bob