Have you tried any other Mats on the Spacedeck? If so, how does the Boston compare?
I have tried the Extreme Phono donut, Ringmat, and some home brews. Nothing compares to the MAT 1. Please note this is an Interspace turntable, I wish I had the Spacedeck.
The MAT 1 imparts a very black background and seems to suck up a lot of extraneous noise that vinyl can impart in a two-channel system. I get a better sense of the physical recording venue and a deeper soundstage.
Primarily, the MAT 1 simply produces recorded voices and instrumentals a lot cleaner, particulary at frequency extremes. While I don't think I am hearing expanded frequency response, the deep bass notes and treble are produced with a lot less noise, it almost seems so.
To steal a quote from Bill O'Connell from Morningstar Audio posted on the Boston Audio Design site:
"Your Mat is a winner. It has taken my vinyl playback to a clearer, tauter, lower noise floor (silent) appreciation level."
I could not have said it any better in so few words. My vinyl listening experience has been elevated to a new level.
NB