Planet Audio AC1200.4 Anarchy Car Audio Amplifier - 1200 High Output, 4 Channel, 2/4 Ohm, High/Low Level Inputs, High/Low Pass Crossover, Full Range, Hook Up To Stereo and Subwoofer Planet Audio AC1200.4 4 Channel Car Amplifier – 1200 Watts, Full Range, Class A/B, 2-4 Ohm Stable, MOSFET Power Supply, Bridgeable Take your audio experience up a notch with the Planet Audio AC1200.4 class A/B 4 channel full range amplifier. With 1200 high output max power and MOSFET power supply, you can be sure to satisfy all of the power requirements. Make adjustments by finetuning the fixed high pass crossover, variable low pass crossover, variable bass boost, and remote subwoofer control. Bridge channels for more power and flexibility.