Class-D Mono-block Subwoofer Amplifier, 2500 Watts Max Power, RMS 1250 Watts x 1@1 Ohm; RMS 900 Watts x 1@2Ohm; RMS 550 Watts x 1@4Ohm. Recoil mono amplifiers are stable down to one Ohm, giving you the freedom to put even more subs in your system. This RED1200.1 monoblock amplifier is strappable (bridgeable) with slave/master switch, so that you can get more power output. Featuring a high-speed MOSFET power supply, premium grade internal components, as well as 4-way protection circuitry, the amplifier will safely operate at the highest levels of performance for hours on end. Highly efficient heatsinks keep the amplifier cool with a sophisticated new look. Recoil mono amplifiers come with bass remote control. Use it to customize your bass on the fly with just a turn of a knob. You'll have full reign over your amplifier with the built-in user control panel, featuring a bass EQ, and variable adjustment tunings for gain level, low-pass filter, and subsonic filter.