Fusion AM Series Marine Amplifiers 500-Watt 4 Channel Marine Amplifier

One amplifier (based on what you select)
Documentation

Physical dimensions (Length x Width x Height): 
2 Channel: 11.65″ x 9.02″ x 2.09″ (296 x 229 x 53 mm)
4 Channel: 14.41″ x 9.02″ x 2.09″ (366 x 229 x 53 mm)

Amplifier class:  Class-AB
Peak power (Watts):  2 Channel: 400 W

Total rated power output - 4 Ohm (Watts): 
2 Channel: 65 W RMS x 2 @ 14.4 V input - 4 Ohm< 1% THD
4 Channel: 65 W RMS x 4 @ 14.4 V input - 4 Ohm< 1% THD

Total rated power output - 2 Ohm (Watts): 
2 Channel: 100 W RMS x 2 @ 14.4 V input - 2 Ohm< 1% THD
4 Channel: 100 W RMS x 4 @ 14.4 V input - 2 Ohm< 1% THD

Total rated power output - 4 Ohm Bridged (Watts): 
2 Channel:  200 W RMS x 1 @ 14.4 V input - 4 Ohm Bridged< 1% THD
4 Channel: 200 W RMS x 2 @ 14.4 V input - 4 Ohm Bridged< 1% THD

Frequency response:  5 Hz - 38 kHz (-3dB, dB @ 4 Ohm rated power)
Input sensitivity:  0.3 V - 8 V RMS, user adjustable
Input impedance:  5k Ohm nominal
High-pass/low-pass full range filter:  Yes (user selectable)
HP variable crossover frequency:  40 Hz - 600 Hz
LP variable crossover frequency:  40 Hz - 160 Hz