2SC3264 HIFI 120W Power Amplifier Board Refer To The Golden Voice Route

Output power: 120W
Working voltage: positive and negative double 25V-double 45V with 8-ove speaker
Plus or minus dual 25V- dual 35V with 4-ove speakers
Output impedance: 4 -8 (not less than 4)
Frequency response: 18-22000HZ
Harmonic distortion: < 0.03%
SNR: 105dB

Before commissioning the board, the heat sink must be installed and insulated. The large tube and warm tube must be installed on the same heat sink and the input end is short to the ground. Use a multimeter to measure the DC voltage between the two points indicated by the arrow in the following figure in DC millivolt gear. The adjustment assembly is counterproductive (the static current of the final stage tube is greater than 0 in principle, avoiding the crossover distortion can be, not the bigger the better, remember!) .