Jolida Foz SS-X Tube buffer & soundstage expander?

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

@namasteplenny The info that you got from Black Ice seems odd.  I have the SS-X with the Revel M106 bookshelf speakers, and the bass enhancement is clearly audible.  I find that even the neutral position, there is a slight enhancement of the bass - a very pleasing one that reminds me a bit of the loudness button that used to be found on many components.  From the reviews and comments I've read, the bass enhancement/reduction is apparent regardless of the frequency range of the speakers.  Of course, Magnepans aren't like other speakers, so you may just have to give the SS-X a try to hear it for yourself.

@mesch I'd forgotten I was going to provide my thoughts on the SS-X.  I've been too busy listening to music and enjoying it! 

I'm using it in a vinyl-only system between a solid state phono stage and a solid state integrated amp.  My speakers are bookshelf speakers.  Before putting in the SS-X, my main issues with my system w were some treble grain/glare, having too much of a front-row perspective, and some imaging problems (the latter two issues due partly to my small listening room and needing to have my rack between my speakers).

Once I put the SS-X in, those issues were eliminated - it was startling.  The perspective became much more "mid hall." The soundstage gained depth and became coherent, as if the rack were no longer there.  And the treble grain/glare was removed.  Instruments and voices sounded richer and more present.  It made several very modest solid state phono stages sound like more expensive tube gear.  I did have a tubed phono stage on hand for a while, and the combination was a bit soft and lacked dynamics, but it was surreal to listen to the vast, liquid soundstage.  Ultimately, I preferred the combination of a SS phono stage with the SS-X.  

I put in an NOS Brimar 12au7, and that made it even better.  Looking forward to trying an NOS Mullard in the near future.  The SS-X also benefits from a good power cord, upgraded fuse, and vibration control. 

I'm really glad that I gave it a shot, and it's staying in my system.  It's an entirely different listening experience with the SS-X in the chain - -engaging, relaxing, emotionally involving. My only dilemma is whether to purchase another one for my work system or as a backup if mine ever has an issue.

Happy 2021 to all,
Scott 

@mesch It's a fairly minimal cost for a (potentially) significant upgrade.  If nothing else, it's a fun piece to play around with for a while.  With a tube DAC and tube pre, you may find it to soften things up too much, or it might just add to the good things that the tubes are doing.  I'll be interested to hear how it works if you give it a shot.  

Stay safe!  Hope you're doing well!
Scott