Lanzar HTG254 2 Channel 1600 Watts High Power MOSFET Amplifier 2x400W RMS at 4 OHMS 2x800W Max at 4 OHMS 1x1600W Max at 4 OHMS Bridged 2x650W RMS at 2 OHMS Electronic Crossover Network Bass Boost Circuit Bridgeable at 4 Ohms 2 Ohm Stereo Stable Gold RCA Inputs Line Outs for Left and Right Channel Low Pass Filter Controls High Pass Filter Controls Power and Protection LED Indicators Soft Turn-on/Turn-off THD: <0.04%. S/N Ratio: >90dB Channel Separation: >65dB Freq. Response: 10Hz~35KHz Subwoofer Remote Level Control Dimensions: 9.82"(W) x 2.34"(H) x 17.83"(L)