4-Channel Mosfet Amplifier from the Titan Serie 4x 50 Watts RMS @ 4 Ohm Stereo 4x 100 Watts RMS @ 2 Ohm Stereo 2x 200 Watts RMS @ 4 Ohm Stereo Frequency response: 20Hz - 20kHz S/N Ratio: 102dB THD: 0,04 % Var. Lowpass Cross-Over 50Hz - 150Hz Var. Highpass Cross-Over 50Hz - 500Hz Var. Bass Boost 0 - 18dB Phase Shift: 0 - 180° Input sensivity: 0,1V - 8V Trimode handling Line Output with Cross-Over Hi-Level Input Connection for optional Subwoofer Cross-Over Made in USA Dimensions (LxWxH): 336 x 298 x 57mm