I had a De Mat once upon a time. I found it did make a difference - and not a subtle one (relatively speaking, of course).
Bass tightened up and seemed to go a tad lower. A better sense of space around individual instruments/ sounds was provided (better delineation of sounds).
I stopped using it, however, when it jammed my CD player with a particular disc.
Bass tightened up and seemed to go a tad lower. A better sense of space around individual instruments/ sounds was provided (better delineation of sounds).
I stopped using it, however, when it jammed my CD player with a particular disc.