external DAC

Your Esoteric should sound better on its own than the PS audio modified by "Richard" (whoever he is) and his electronics...Sounds like a unnecessary downgrade for the sake of tinkering pleasure.

Well that's kind of what I think too, but man everywhere you read and hear everybody sure seems to think external dac's are the way to go regardless. Thanks for your response, I mean I had already pretty much decided against it even prior to posting that question. I just wanted to see if anybody had an answer. Thanks again!

I don't know, but I've always thought (maybe mistakenly) that DSD could only be output through an HDMI connection.  There is a d.bob, digital break out box, GeerFab Audio - GeerFab but that requires DSD to be input by HDMI. 

I don't think you can output DSD from your Esoteric but it can't hurt to connect it to your PS Audio DAC and see how it sounds.

I think Esoteric and PS Audio both use FPGA for the conversion. I do not have an FPGA DAC bur that is one approach that I want to try one day. It is hard to say one FPGA is better than the other since the software in the FPGA can make the DAC sound different.

The D.BOB that is referenced by @tomcy6 is a superb way to use an external DAC with your transport. It is also relatively cheap. I paid under $700. I use a very cheap OPPO to play CD’s and SACD’s which connect by HDMI into the D.BOB. This connection can take pure DSD streams out of the OPPO. The guys at D.BOB say it is legal to do what they are doing. The DSD police have not come after me so maybe it is legal.

The D.BOB connects by SPDIF into your DAC. Not sure if all DACs will work but I have tested it successfully with the Schitt Yggi+ LIM | Schitt Yggi+ OG | Benchmark DAC3B. I use the DAC3B with it now since it supports DSD.

BTW - the D.BOB setup replaced my SONY SCD-1 SACD player modded by Vacuum State to Level 5+. The D.BOB was a worthy replacement after the SCD-1 died recently.