Input Channel(s): 4 Output Channel(s): 4 Continuous Wattage @4ohm: 180 x 4 / 650 x 2 Continuous Wattage @2ohm: 325 x 4 Max Current Draw (Amps): 150 RCA Input Voltage Sensitivity: 6 – 0.25 High-Level Input Voltage Sensitivity: 20 – 1.1 RCA Input S/N: 95 Damping Factor: 100 THD: 1.0% Frequency Response (Hz): 20 – 20k High Pass Filter: 35 – 600 Low-Pass Filter: 35 – 600 Power Wire Gauge: 4 Speaker Wire Gauge: 14 Dimensions (Inches): 6.25 x 4.6 x 2 Dimensions (MM): 159 x 117 x 50