Perreaux

Class A , A/B power Mosfet Amplifier in very good conditions.  I don't have the original box but will pack with care for safe transport.  Specifications:
300Wrms per channel continuous both channels driven into 8Ω from 20Hz to 20kHz at no more
than 0.03% Total Harmonic Distortion from 0.25W to rated power.
500W per channel continuous into 4Ω
Total Harmonic Distortion.................................. 0.03%
Intermodulation Distortion ...................... 0.03%
Dynamic Headroom (with music) ..................> 2.0dB
Amplifier Saturation........> 900W per channel into 8Ω
Voltage Swing ........................ 180Vp-p per channel
Maximum Current Output .....10A continuous per channel (fuse limited)
Uncompensated Bandwidth ............... 0.5dB from 10Hz-3MHz 1WPhase Response.....+2° at 20Hz -2° at 20kHz
Rise Time ................. Typically < 1μs
Channel Separation.................> 70dB 20Hz-20kHz
Hum and Noise ..... 100dB below rated output 20Hz-20kHz
Damping Factor.................................> 400 from 10Hz-1kHz
Input Impedance ..................................... 50kΩ
Driver Stage ....................................Class A
Output Devices .................... Extended Class AB
Dimensions
Width...................................483mm (19.0") Height..................185mm (7.5")
Depth.................................445mm (16.5") Weight ................185mm (7.5")