I'm not sure this is in the right place.  I've spent the last two weeks listening to the latest release of XXHE, and all I have to compare with is my former setup using JPlay.

This is preliminary, an evaluation ahead of getting the XXHE PC and the NOS1 DAC.

The sound is incredible, once certain parameters are in place.  I still do not have completely uninterrupted play--can play about 10 tracks before XXHE quits for reasons that I'm sure are related to some random services on the VAIO laptop I'm using.  My purpose was evaluating SQ, and this is the best sound I ever have had from my system.

Played around with Q settings and SFS primarily.  The biggest influence by far was Q5=1.  Really extraordinary.  Still tweaking a bit, have kept Q3=1, Q4=1 without change.  After setting Q5=1, the major element was getting good SQ and uninterrupted sound, which currently is SFS=2.0, and Q1=20.

Going to 0.4 on SFS seemed to collapse the sound stage, but I need to do this again to make sure.  Could not get uninterrupted play with Q1 any lower.  This is still the demo version, will get activated soon.

Rest of the system is: Empirical Audio Overdrive DAC, no pre-amp, active ASP crossover/EQ and Linkwitz Orion speakers.  Goertz low impedance speaker cables, and low capacitance interconnects from Blue Jeans Cable. 

The overall SQ is extremely "real" a huge improvement over CDs from a modified transport as well as JPlay. 

Listening to Bill Frisell's Blues Dream, a really great album, as I write this.

Looking forward to being a part of this community!