Crunch PX 2000.1D 3.70in. x 13.30in. x 10.80in Maximum low voltage signal from the source unit comes into the amplifier through a low voltage circuit which delivers minimal distortion through the amplification process Highest sound quality connection with quality RCA materials helps prevent interference and minimize distortion in the signal path Easily tie into OEM audio systems that do not offer RCA output to maximize after market amplifier power