I used to drape an old army wool blanket over my TV flat screen since it sits between my speakers and it does make an improvement but I've gotten so lazy that I stopped doing it. The trick is to not overdo it. Case in point: I replaced an overstuffed sofa with some lounge chairs and the sound improved noticeably from the mids on down to the bass. I would never have sold my old speakers had I replaced that sofa first. You never know until you try.
All the best,
Nonoise
All the best,
Nonoise