Eliminate Speaker Distortion: Distortion is an enemy to your sound system! Even the very best speakers have some level of distortion. To combat distortion, home audio speakers come installed in well crafted, heavy boxes! In your car, applying Dynamat to flimsy sheet metal surrounding your speakers eliminates speaker distortion and stops vibration, rattles and squeaks. Your stereo will sound it`s very best with Dynamat! Plus.... Increase Your Effective Amp Power: Don`t buy half a sound system! Why does your stereo sound louder when you pull off the freeway and come to a stop? Road noise robs much of the listenable portion of your music. At 70 mph, a typical automotive noise level of 85dB leaves you with ONLY 20dB of listenable music. Dynamat creates a sonic barrier restoring 3...6... even 12dB of lost dynamic range. Gaining 3dB is doubling your effective amplifier power. And that means YOU HEAR MORE MUSIC!