Some scuffs from use, see pics. Unfortunately, we are unable to test, sold as is. No returns. Per Manufacturer Brochure: The DC656 defines versatility for car audio amplifiers. You get a DC364 4channel amplifier and a DC352 2 channel amplifier, all in one chassis. With all the digital processing of the DC series, this amp is a whole system in a single box. Stereo, 4 ohms: 6 x 50 Watts RMS Stereo, 2 ohms: 6 x 90 Watts RMS Bridged, 2 ohms: 2 x 180 Watts RMS Stereo, 2 ohms: 6 x 180 Watts Max T.H.D. + Noise <0.025% @ 4 ohms On-Board, Full Function DSP Intelligent Rail Voltage Control Short term stable to below 1 ohm/Ch USB Input for PC Control 2nd Generation Digital Programming Network Heavy-Duty, High-Current, Insulated Terminal Blocks Space Saving Flush Wiring Connections Bridgeable Three-Channel Capable Gate Drive Boost Circuit High-Current Bipolar Outputs Optically Isolated MOSFET Power Supply Dimensions in Inches : 7.12(W) x 2.35(H) x 24.40(L)