Features: High Level Inputs 12dB/Oct High Pass/Low Pass xovers Heavyweight DD Aluminum Chassis Aluminum End Panels and Bottom Panel Set Screw Power and Speaker Terminals 8 AWG Power Terminals Specifications: Operating Voltage: 9 – 16 Test Voltage: 14.4 Input Channel(s): 4 Output Channel(s): 4 Continuous Wattage @4ohm: 4 x 150 Continuous Wattage @2ohm: 4 x 250 / 2 x 500 Max Current Draw (Amps): 100 RCA Input Voltage Sensitivity: 10 – 0.4 High-Level Input Voltage Sensitivity: 10 – 0.4 RCA Input S/N: 85 Damping Factor: 70 THD: 0.1% Frequency Response (Hz): 10 – 20k High Pass Filter: 50 – 5k Low-Pass Filter: 5 – 5k Power Wire Gauge: 8 Speaker Wire Gauge: 16 Dimensions (Inches): 7 x 4.5 x 2 Dimensions (MM): 178 x 115 x 50