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.