tim3320070
Headphoneus Supremus
I believe the DSP1 negates much of the need for a high end converter. I sold my Audiophilleo 2 and am running optical (from my cheap audio card) via a cheap Monoprice coax converter to my Ref-8. I heard practically no difference (maybe an ever so slight hardness with the optical). I will probably get the new DI (I had the old one) anyway to be sure. Just don't expect dramatic improvements with a converter to the Ref-7.1 or other DSP DAC from AGD. On a side note, I did hear pretty decent improvement running the DI to my NFB12 vs. the built-in USB, but again, nothing dramatic.