I purchased this a few years ago to run a floor monitor I was using. If it has 20 hours of use I would be surprised. It needs to be put to use as it is a really good sounding power amp. $425 plus ship or local pickup in the Tampa FL area.
This img is from Amazon just to show the back
Output Power
1kHz, THD+N=1% 8 Ohms Stereo: 525W + 525W
1kHz, THD+N=1% 4 Ohms Stereo: 750W + 750W
1kHz, THD+N=1% 8 Ohms Bridge: 1500W
20Hz-20kHz, THD+N=1% 8 Ohms Stereo: 500W + 500W
20Hz-20kHz, THD+N=1% 4 Ohms Stereo: 700W + 700W
20Hz-20kHz, THD+N=1% 8 Ohms Bridge: 1400W
1kHz, 20mS nonclip 2 Ohms Stereo: 1300W + 1300W
1kHz, 20mS nonclip 4 Ohms Bridge: 2600W
Power Bandwidth (half power): 10Hz-40kHz (THD+N=0.5%)
THD+N (20Hz - 20kHz, half power): Maximum 0.1%
Intermodulation Distortion (60Hz: 7kHz, 4:1, half power: Maximum 0.1%
Frequency Response: 0dB, +0.5dB, - 1dB f=20Hz-50kHz
Channel Separation: Minimum 70dB 1kHz
Residual noise (Att. min.): Maximum 70dB
S/N Ratio: 103 dB
Damping Factor: 350 max.
Sensitivity @8 Ohms +6dB
Voltage Gain (Att. max): 32.1dB
Input Impedance: 30kOhms balanced; 15kOhms unbalanced
