Model: CA2 amplifier8ΩStereo power : 150 W4Ω Stereo power : 225 W2Ω Stereo power : 270 W 8Ω Bridge power : 450 W 4Ω Bridge power : 540 W Frequency response : 20Hz-20KHz+0/-0.3dB THD+N : <0.03% 8Ω 1KHz S/N Rate : >90dB Slew rate : 20V/μS Damping coefficient : >400 Crosstalk : >70dB 8Ω 1KHz Input impedance: 20KΩ (Balance)/10KΩ (Unbalance) Input sensitivity: 0.775V/1.0V/1.4V Protect: DC,short circuit,over heat, over load Heigh : 2U Cross weight : 21.25 KG Packing dimensions : 590 (L) 570(W) 150(H)mm