Professional parametric equalizer with low pass x-over 13 volts peak line driver two backlight illumination red/green transparent top cover panel one-half din size chassis black chassis only cd/radio input (3channel output) front / rear and subwoofer ouput 7band parametric boost cut 18db switchable dual color night illumination fully isolated power supply ac/dc power supply: adjustable fader,gain, subwoofer level, sweep frequency : 80db / 1khz stereo separation: aluminum chassis with transparent plexi glass