I brought some Directed Sound Off sound dampening material today and this stuff works great. I got 6 11X11 sheets for $20. I'm getting some more over the next few weeks and will do my entire trunk. Bass sounds better and deeper already.
Does sound dampening material work well in sealed boxes? I'm getting more excited about my first competition in MECA. Anyone know where I can get a 1100D by directed for cheap or any Class D Amp that can put out 1000 wtts rms @ 2-ohms?