Kenwood excelon sub amp

Worked when i pulled it out of the car getting traded in. The KAC-X810D Mono subwoofer amplifier can send up to 1000 scorching watts (at 1 ohm) of Class D technology power to your subwoofer with high efficiency and minimal heat. The 24 dB per octave crossover lets you trim down the frequency range of the signal being sent to the sub for extra tight bass, while the phase inverter (0-180 degrees) keeps your rear mounted sub(s) firing in sync with your front speakers, for total sonic harmony. Details: -400 watts RMS x 1 at 4 ohms -800 watts RMS x 1 at 2 ohms -1,000 watts RMS x 1 at 1 ohm -Bass Management System -50-200 Hz low-pass crossover, 24 dB/octave -infrasonic filter (15 or 25 Hz selectable, 24 dB/octave) -12 dB bass boost variable from 40-100 Hz (expandable to 6/12/18 dB when connected to a Kenwood -Excelon receiver equipped with BMS controls) -phase inverter (0-180 degrees) -preamp outputs -speaker short, low battery, thermal overload, and DC protection -variable color indicator -gold-plated terminals 14-5/8" x 2-5/16"H x 12-3/8"D Only Asking $100 (retailed for over $500+TAX)