SPECIFICATIONS:Stereo Mode: 2x600W/8Ω, 2x900W/4Ω, Bridge Mode: 1x 8Ω 1800W per channel @ 1 kHz <0.05% T.H.DFrequency response: 20Hz-20 kHz; + 0, -0.3 dB 1W@8Input sensitivity: 1.0V/1.4VTotal harmon