Lanzar VBRA285 4000 Watt 2 Channel Mosfet Amplifier RMS Power @ 4 Ohms: 2 x 1000 Watts - Heavy-Duty Heatsink - High-Pass / Low-Pass Electronic Crossovers With Adjustable Frequency - Simultaneous Mono / Stereo Operation Capability RMS Power @ 2 Ohms: 2 x 1250 Watts - Oversized Capacitor Tanks - Adjustable Bass Boost - Short Circuit / Thermal / Overload / DC Offset Protection - Signal To Noise Ratio: 85dB Peak Power @ 4 Ohms: 2 x 2000 Watts - Die Casting / Custom Terminal Block And Gold / Nickel Plated Rca Jacks - Remote Bass Boost - Line Audio Output Jacks Bridged Power @ 4 Ohms: 1 x 4000 Watts - High / Low Level Inputs (Except Mono) - Soft Turn On Delayed Remote Turn-On / Off Circuitry - Power / Protect LED indicators - Frequency Response (+/- 1dB): 10Hz-38 KHz High-Efficiency MOSFET Power Supply - Adjustable Input Gain Control - Fully 2ohms Stereo Stable Operation - THD: 0.5% - Low Pass Crossover Frequency: 40Hz-400Hz