So, I was out in my car tuning like I always seem to be. Just for kicks I decided to lay a couple towels on the dash making sure to cover all areas around both tweeters. I turned on the tunes and lo and behold, with absolutely no tuning, the image centered perfectly in the middle and the tweeters seemed to disappear for the first time ever. So, now I would like some opinions on dash mats from the guys that use them. There looks to be three different basic kinds of material these are made out of - carpet, velour and suede. I am thinking that suede is the best for looks and acoustic damping but it is also the most expensive and really what do I know. Anybody got an opinion?