Massive Audio B2000.5 Blade Series - 2000 Watt, 5 Channel, Full Range Car Amplifier with Bass Boost. Soft blue logo backlit w/LEDs; Full MOSFET w/hi grade switching; noise reduction, DC Offset, and auto sensing turnon (hi-Level inputs); Ch 1/2 and Ch 3/4 crossover select switch. Up to 9V input via RCA or hi-level leads; 12V remote out for external devices (hi-level inputs); Bass boost 0dB - 12dB at 45Hz. High output power Supply, dual output voltage; Ground loop isolator; Next-gen 5-way protection. Milspec PCB w/SMD parts; International standards compliant (RoHS, E-Mark, CTA-2006, CE). Min ld: 2 Ohm stereo and 2 Ohm mono. Pk out: 250Wx4 and 1000Wx1; 2 Ohm RMS: 160Wx4; 4 Ohm RMS: 80W x 4 and 3000Wx1; HPF, LPF, Bandpass 12dB xovers (LP: 50Hz-3KHz); Subsonic Freq Knob (15Hz - 55Hz); 2"Hx7.1"Wx20.7"L.