Features of the circuit
Power output at 1kHz
-Load 8 ohm 50W
-Load 4 ohm 88W
Power bandwidth +/- 1dB 20-50,000Hz
Frequency response +/- 1dB 20-50,000Hz
THD 20Hz-20kHz UP to rate power 0.05%
Slew rate 20v/microsec.
Damping factor better than 50
Signal to noise ratio 88dB.
Input voltage for maximum 100mV.
Also, the results from this circuit, it is the high-frequency response better output with J49/K134.