Jolida Foz SS-X Tube buffer & soundstage expander?

I saw a review on something like this a couple of days ago. Frankly, it looked like a scam at first. I'm kind of one of those purists, I suppose, that never touches tone controls if I've got them and prefer the simplest signal chain possible. The concept of a valve buffer is sound and I don't doubt these things do what they claim. For me personally, I'd probably just go for the valve front end for simplicity. 

This component appears to use the Bass EQ  and Panorama "surround sound" circuits used in the Fosgate Signature Tube Headphone amplifier released circa 2012.  I wonder if it would be useful on the many poorly mastered CDs that seem to have a compressed soundstage.  I do not believe the tube is being used as a buffer to correct impedance mismatches. Of course my EE Minimax preamp has an enormous effect on tone and soundstage depending on the specific 12au7 signal tube or 6x4 rectifier being used in the signal path - a Mullard M8136 will kill the treble response while an RCA black plate will create excessive bass response.  The Minimax preamp does not generally make poorly recorded/mastered CDs sound better especially on hard rock music.  Fosgate's patented circuits will change the sound in ways some will like or find useful and others dislike for various reasons. Any more input from people using this component would be very helpful.

Works wonders on british speakers!!!!