Audiopipe Micro Class-D Monoblock Amplifier, 800 Watts 756 Watts x 1 @ 1 Ohm 496 Watts x 1 @ 2 Ohms 289 Watts x 1 @ 4 Ohms DIM (W X H X L) 4.75" x 1.75" x 9" Current Draw: 69 Amps Signal to Noise Ratio: > 89dB Frequency Response: 10 Hz - 250 kHz THD: < 0.5% Low Level Inputs Bass Boost Level: 0-15dB Low Pass Filter: 50Hz-250Hz Subsonic Filter: 10Hz-50Hz Remote bass knob