Crunch Ground Pounder Series Class A/B 2 Channel Amplifier, 1500 Watts 2 x 750 Watts @ 2 Ohms 2 x 325 Watts @ 4 Ohms 1 x 1500 Watts @ 4 Ohms bridged (W x H x L) 8"e; x 2.375"e; x 8.75"e; Fuses: 1 x 25A Class A/B Exclusive Crunch SPEED-FET MOSFET components High energy Pulse Width Modulated Power Supply High/Low Pass Filters: 40 Hz - 400 Hz Bass Boost: 0 / +6 / +12dB High/Low Level Inputs Heat Sink - Quick Thermal Dispersion Technology Nickel Plated Brass Connections Overload and Speaker Short Protection THD: <0.5% Power terminals: 4 Ga. Speaker terminals: 12 Ga.