Features Class D Mono Block Amplifier 1 Ohm Stable Capability PWM Mosfet power supply RCA line level Stereo inputs 4 Layer PCB Variable 12dB Low Pass Crossover Variable 12dB Subsonic Filter Variable Bass Boost @ 45 Hz Heat management system Selectable input gain range Remote Bass Control Included Specifications 1 x 1800 Watts @ 1Ω 1 x 900 Watts @ 2Ω Low Pass Filter: 40Hz - 300Hz Subsonic Filter: 0 - 25 Hz Bass Boost @ 45Hz : 0-12dB Input Sensitivity: 250Mv - 6V Signal to Noise Ratio : >90dB Freq