Hifonics Brutus BXI1210D 1200 Watt D-Class Mono Amplifier 1 x 450 W @ 4 Ohms, 1 x 900 W @ 2 Ohms, 1 x 1200 W @ 1 Ohm Bass EQ with 45Hz bass boost and variable control from 0db to 10db Variable Low Pass, Subsonic Filter, Phase Shift and Level Control Balanced line input for MX accessories and line drivers Built-In System Diagnostics protects from short circuits, over load, thermal overheat and DC Offset; Bass Remote included