Hello Charles,
Good to see you again.
Regarding to your question, yes, I´m still using the Yamamoto YDA-01, via the Music Fidelity V-link. It´s difficult or unlikely to part with the Yamamoto. I do like to try another DAC that beats the Yamamoto for the same money.
I´m still tasting the waters with Computer Audio, you know is stills not a mature market -far from it-.
My 1 month experience with Computer Audio goes like this:
1.- Main rig -Esoteric UX-1, Yamamoto YDA-01, Eastern Electric BBA, Leben CS-300, Zu Druid and Zu Method- plays better or equal than 16/44 files through MacBook Pro plus Musical Fidelity V-Link, rest the same rig-. In this scenario I wouldn´t go the computer audio route.
2.- But when 24/88 files enter it´s like a veil is lifted from the original 16/44 file -you know, more light- While I have to use the equalizer embedded on Audirvana Plus to get the sound I like. On the contrary bass seems a bit fuzzed going the 24/96 or 24/192 route, that´s what I favor 24/88.
3.- The best part is when headphones are connected to the Leben, the sound is far better through the computer -24/88- than going straight to Leben sans computer. Especially when using Philips Fidelio UX-1 -great bass- or Audeze LCD 2, Rev 2, -in this case bass is no as deep as Fidelio UX-1, but mids, highs and specially soundstage are the best I´ve ever heard.
4.- Next move. A TEAC UD-501 DAC it´s on its way home. I´m curious to know if it can beat the Yamamoto and if 32 bit depth to 88, 96 or 192 can better 24/88. Reviews are promising -I got a brand new for a fraction of the original Yamamoto price. Let´s see.
Hope this helps.
Daniel