No description just some specs.
- Input Sensitivity - 0.9Vrms
- Output Power - 39W
- Drawn Power - 177W
- Efficiency - 22%
- Frequency response - 5Hz-20kHz without attenuation. <1Hz - 100kHz at -3dB
- THD+N - almost immeasurable at 0.002%
- Ripple rejection - -78dB
Just a little note on the amp. The voltage offset ia very stable in respect to the hFe, but the drawn current varies widely with hfe variation.