As a speaker reproduces an acoustic signal, it sends sound waves in two directions; forward and backwards. Buy A-Premium Front Driver Brake Hydraulic Hose Compatible with Select Toyota Models - Corolla 2003-2008, Prius 2004-2009 - Replace# 88971249 These dynamic pads are the easiest way to clean up the mid range and mid bass from your door speakers or kick pods. One Speaker Kit contains: (2) 7 diameter Second Skin back wave canceling discs Simply adhere one Speaker Tweaker pad 3-8 inches behind your door speakers, with the ridges facing the speakers, to absorb and redirect the rear wave away from the back of the speaker. One Speaker Kit contains: (2) 7'' diameter Second Skin back wave canceling discs Simply adhere one Speaker Tweaker pad 3-8 inches behind your door speakers... Second Skin Sound Deadener 1965-1973 Ford Mustang Sound Deadener Kit Damplifier Pro The sound waves sent forward we hear as music. Speaker Damping Pads at Diane Jankowski blog (2) 7 diameter Second Skin back wave canceling discs in each kit This rear wave reflection interferes with the natural movement of the door speaker which causes distortion and acoustical cancellation. These Speaker Pads get applied (using super glue) inside the door behind the speaker to absorb and redirect the rear wave away from the speaker, allowing the speaker to function just as the recording studio intended. The sound waves that are sent backwards go inside the door, vibrate the metal and plastic, and reflect off of the inside skin of the door back towards the speaker.
