Cerwin Vega Amplifier Cvp Series 2Ch 800W DC40RB Most Dependable 1 4in Hex Dr TL121 Most Dependable 1 4in Hex Dr to 1 2in square for sockets Maximum cutting depth at 90deg: 55 mm Latest High Efficiency Class A B TopologyCompact Size with Ambient backlit logoRCA Pass Thru output for easy system expansionFully Variable Crossovers (12dB per octave)Handles HI and LO level input to 12V2 O Stable Stereo and 4O Mono (CH3 4) for 3 CH modeProprietary Vega Bass Boost EQ Up To 12dBSPECIFICATIONS800 MAX Power2 Channel Amplifier85W x 2 at 2Ohm RMS60W x 2 at 4OHm RMS180W x 1 at 4Ohm RMS Bridged Mono2 Ohm Stereo 4 Ohm Bridged Full Range OperationDirect Short