Product details:

Orion Cobalt 4 Channel Amplifier 3500 Watts Max1750W RMS/3500W MAX875 X 4 MAX @ 2 OHMSDIM (WXHXL) 7-3/8 X 2-1/2 X 13-7/8 CLASS A/B; 2 OHM STABLEHIGH/LOW PASS CONTROLHIGH/LOW INPUTMOSFET POWER SUPPLYTHERMAL PROTECTIONBASS BOOSTGAIN CONTROLLED POWER & PROTECTION INDICATORFREQ. RESPONSE: 10HZ-30KHZ