Jolida Foz SS-X Tube buffer & soundstage expander?

Works wonders on british speakers!!!!  

Hi there, I recently purchased this item, to try it as a replacement for my WLM EQ (between music server and integrated tube amp). It does everything as advertised and mentioned in this thread. I struggle with one drawback, however, and that is slightly more  emphasis on sibilance (I can't stand that). There is no change in the high quality interconnects and power cable connected to the unit (same as to WLM) so the problem is in the new unit. I am trying tube rolling without major improvement. Any advice?

Perhaps leaving the unit on for an extended period of time before playing it. Someone mentioned much better music after the unit was on for 12 hours. Perhaps this a beak in period. I did buy a different tube for it that had some merit.
  I would like to add that an unexpected function of the unit is applied with the old Beatles recordings, since I am less impressed with one instrument per channel. The SSX allows you to mix them back to a much more believable recording.

Hello everyone,  So here we are a year later.  Just wondering if anyone had any additional thoughts about this box.  I just found out about it today, and I am potentially interested...

Particularly interested whether it improves the "3D sound stage, Holographic, wide and deep,etc" with bass, especially at lower volumes in a small (8x10) room.

I have a Peachtree Audio Nova 300, that I could connect with this.  Might save me having to purchase an external DAC to improve as per the above..

Thoughts?

I just got mine yesterday.  Will give a report after I have a few days to play around with it.