Close the switch on the right first, and two second after - close the other switch. Wait 10 seconds until amp falls into regime.
Vin - 3.85Vm
Av - 5.7
Pout - 60W
Pcc - 212W
η - 28%
Δf - 13Hz - 50kHz @ - 3dB
PSRR - - 60dB. Could be better if the zener regulation is replaced with an LM317 regulator.
THD - 0.007%
