Good car sound begins with properly treated doors and panels. Flexing metal panels and expanses of plastic cause a myriad of issues with car sound from bass cancelling road noise to annoying shakes rattles and vibrations. A flexing metal panel can effective sap the energy away from your speakers by creating inter-cancellation at the rear of your speaker while other surfaces can produce unwanted nasty resonances which colour the sound. Our sound deadening and panel lining products go as far as possible in eradicating these products while our wave diffuser will absorb the sound issuing from the rear of your speakers to prevent that sound reflecting back into the speakers. The importance of sound treatment such as the Skinz range should never be underestimated.