The CXA1200.1 Mono Amplifier is built for affordable power and performance, thanks to an optimized circuit layout and the high-grade internal components. This mono CX-Series Amp is now one-ohm stable, giving you even more wiring options for your system! Using a Class-D power plant, the CXA1200.1 features a variable bass boost with KickEQ, giving you as much as a 6dB of extra bump with a simple turn of the optional CXARC Remote Bass Controller. A powerful 12dB crossover and 24dB subsonic filter is included, letting you quickly tune your system to perfection. CX-Series Amplifiers accept up to 40 volts (400 watts) of speaker-level input signal. This kind of flexibility both makes line-out converters unnecessary and optimizes your sound quality at the same time! Use the full-range outputs to expand your system with other bass amps, or add a full-range amp to complete your system. This CX.1 Amplifier delivers as much as 1,200 watts into one bass channel. The Rockville RWK21 2 AWG (American Wire Gauge) amp kit has the following diferences over other amp kits on the market at this price point.