Get the most out of your sound and enjoy an ultimate performance while driving down the long roads with the CX400.1 Class-D Mono Amplifier from Kicker. This CX-Series mono amplifier is ohm stable . giving you even more power and wiring option for your system. Featuring an included powerful 12 dB crossover and 24 dB subsonic filter . this speaker system lets you quickly tune your system to perfection. Use the full-range outputs to expand your system with other bass amps or a full-range amplifier to complete your system. Measuring 20.6 inches long . 17 inches wide . and 5.9 inches tall . this piece of equipment includes vertical mounting hardware for a convenient . unique look in your vehicle. This specific CX.1 amplifier accepts up to 40 volts of a speaker-level input signal. This kind of flexibility makes line-out converters unnecessary and optimizes your sound quality. Install the Class-D Mono Amplifier from Kicker in your car and enhance the sound you listen to.