Hifonics Brutus BRZ1200.1D D-Class Mono Block 1 x 450 @ 4 OHMS, 1 x 900 @ 2 OHMS, 1 x 1200 @ 1 OHM Hifonics "Super D" Digital D-Class Technology that is 4/2/1 Ohm Stable with Blue "Military Grade" PCB and Bass EQ with 45 Hz Bass Boost Brutus Bass Remote Included with RCA Inputs and Outputs and a Built-in system Diagnostics High Dissipation Heat Sink Variable Low Pass, High Pass, Band Pass, Phase Shift and Level Control Link N Sinc Linking Capability BRZ 2100.1D and BRZ 2400.1D 4/2/1 Ohm Stable 1200 Watts Super D Class Bass Remote Included Illuminated Logo