Car Shock insulation ( speaker kit)

Car Shockinsulation ( speaker kit) Even with best speakers,you won't hear the quality sound when the speakers are installed on the flimsy car door panel.the vibration of the speaker panel will produce noise and harmonic distortion. Applying the Boyin Speaker kit car audio sound deadener,you can easily make your speaker pane become a solid non-resonant baffle;reduce greatly the speaker panel distortion.without harmonic wave distortion,you can get the pure and quality sound of your speaker! you don't need to change your speakers,you can get better sound easily by using Boyin car speaker kit sound deadener.