Lanzar VIBE421 4 Channel 1000 Watts Vibe Amplifier 4 x100 Watts RMS at 4 Ohms 4 x 250 Watts Max at 4 Ohms 2 x 400 Watts Max at 4 Ohms Bridged 4 x 175 Watts at 2 Ohms Remote Subwoofer Bass Control Electronic Crossover Nerwork Bass Boost Circuit Brigeable at 4 Ohms 2 Ohm Stereo Stable Tei-Mode Capable Gold RCA Inputs Line Outs for Left & Right Channels Power & Protection LED Indicators Advances Protection Circuitry Soft Turn Onn/Off Frequency Response: 15Hz -35 kHz S/N Ratio: 90 db Dimentions: 10.25"W x 2"H x 14"L