My first brief listening impressions are that Fidelizer Pro has smoothed out the digital “edge” and enhanced the detail and sound stage width on the few tracks I had time to listen to. The difference is not huge (to my ears, with my system, in my room), but it is noticeable, and it has definitely increased my listening pleasure. Interestingly, with Fidelizer Pro in the mix, I now find the differences between JPLAY mini, JPLAY Streamer and BHE are much more subtle.
Cheers,
Bernie