As I said I know very little about these things! Its a Yamaha CP2000
Spec as follows:
Output power per channel:
650W continuous @4 Ohm 1kHz
450W continuous @8 Ohm 1kHz
1000W continuous @2 Ohm 1kHz
(Bridge) 1300W continuous @8 Ohm 1kHz
(Bridge) 2000W continuous @ 4 Ohm 1kHz
Frequency response: 20hz - 50kHz ±1dB @1W
Power bandwidth: 10Hz - 40kHz half power
Signal to Noise Ratio: >104dB 12.7kHz LPF
THD: <0.1% from 20Hz to 20kHz half power
IM Distortion: <0.1% 60Hz - 7kHz half power
Damping factor: >200 @8 Ohm 1kHz
Voltage gain: 33.8dB
Input impedance: 30k Ohms (balanced)
                         15k Ohms (unbalanced)
Mains power: 230 VAC 50 Hz
Power consumption: 400W
Weight: 14kg (6.4lbs)
Dimensions: 480 x 88 x 416mm (2u 19" std)