A couple updates for all you kind gentlemen regarding my quest for better SQ from my digital. I’m now using shielded cables from the DAC and PWT into my Brickwall (which uses ferrite filtering), plus some PS Audio Noise Harvesters and the results are positive.
With the HDMI (Cardas cable), sound is closer to "analogue." With SPDIF (Oyaide coax), the music explodes thru my speakers with increased dynamics, detail, and a huge soundstage, not to mention a lower noise floor. But, the sonics are still clearly from a digital source.
I still believe my DAC lacks a high quality clock, so before I upgrade the DAC, I might give the Uptone SPDIF ISO Regen a try.
@dlcockrum , I saw your negative review of the ISO Regen as used in your system. It could be that the clock in your Exogal Comet is so good, you don’t need an external timing device. Also using a Purist Audio USB from the Aurender may already have excellent synergy.
As a side note, if anybody knows about the PSA Noise Harvester, the LED's are constantly flashing indicating that they are detecting and filtering noise entering the power conditioner.