Amplifier Class: Class AB No. of Channels: 4/3/2 RMS power output: 70 W x 4 RMS (4?) 95 W x 4 (2?) 190W x 2 (Bridged) Frequency Response: 15 Hz to 22 kHz Total Harmonic Distortion: (THD) S/N Ratio: >80dB Speaker Level Input: Yes Crossover Type: Variable HPF/LPF Crossover Frequency: 32Hz to 320 Hz Bass Boost Frequency: 50 Hz Baas Boost Level: Min/Mid/Max