TRF MH 1240.4AB 1240Watt RMSPOWER RMS 4ohm 230W X4POWER RMS 2ohm 310W X4POWER RMS(bridged)4ohm 620W X2 2480Watt MAXPOWER MAX 4ohm 460W X4POWER MAX 2ohm 620W X4POWER MAX(bridged)4ohm 1240W X2 SIGNAL TO NOISE:93dBINPUT SENSITIVITY:0.2v to 6vCROSSOVER:12db oct/slope4 channel operation4/3/2 channel operationSelectable FULL/HPF/DUPE crossovers CH1/2variable HI pass filter:15Hz to 1.2KHzSelectable FULL/HPF/BPFcrossovers CH3/4variable bass boost:0 to 9dBvariable low pass filter:30Hz to 150Hzvariable HI pass filter:15Hz to 1.2KHz1x6 gauge power & speaker terminalsFUSE : 100AMPLED power (green) and protect (red) indicator lightsTested voltage & THD: 14,4v &Less than 2% THDWorking voltage :8.5v to 15vDimension : 475x187x54mm