Soundcraftsmen Pro Power Four amplifier
Serviced:
-replaced all electrolytic capacitors with Nichicon caps
-replaced power filter capacitors with upgraded units in capacity, voltage, high current, long life
-replaced input and current source transistors
-replaced fan resistor
-replaced power cord with heavier 14 awg
-set bias, PCR, and temp voltages
-test noise and distortion
Rated at 205W per channel 8 ohm, 300W 4 ohm, and 450W 2 ohm
THD rated at .05%, tested .0155%
Some paint touched up around the edges of the face-plate
Soundcraftsmen Pro Power Four amplifier
Serviced:
-replaced all electrolytic capacitors with Nichicon caps
-replaced power filter capacitors with upgraded units in capacity, voltage, high current, long life
-replaced input and current source transistors
-replaced fan resistor
-replaced power cord with heavier 14 awg
-set bias, PCR, and temp voltages
-test noise and distortion
Rated at 205W per channel 8 ohm, 300W 4 ohm, and 450W 2 ohm
THD rated at .05%, tested .0155%
Some paint touched up around the edges of the face-plate
