Soundcraftsmen RA7503 power amplifier
Serviced:
-replaced all electrolytic capacitors
-replaced power capacitors with upgraded units
-replaced differential input transistors with matched upgrades
-rerouted gain pot wiring and added shield for superior noise cancellation
-tested power, noise, and distortion. (max of .0115% THD)
-repainted sheet metal covers
-installed new 3M feet
Power Amplifier, with 100-LED frequency
spectrum analyzer display. Features Class-H Vari-Portional circuitry; Autobuffer circuitry for continuous
2-ohm operation; 40-LED power output Meters from 0.02
up to 2,000 Watts; Truclip indicators for each ch; Mono
Bridging switch on rear panel. TIM < 0.02%; 250 W/ch
into 8 ohms; 375 W/ch into 4 ohms continuous RMS,
20-20,000 Hz, THD < 0.09%.
Soundcraftsmen RA7503 power amplifier
Serviced:
-replaced all electrolytic capacitors
-replaced power capacitors with upgraded units
-replaced differential input transistors with matched upgrades
-rerouted gain pot wiring and added shield for superior noise cancellation
-tested power, noise, and distortion. (max of .0115% THD)
-repainted sheet metal covers
-installed new 3M feet
Power Amplifier, with 100-LED frequency
spectrum analyzer display. Features Class-H Vari-Portional circuitry; Autobuffer circuitry for continuous
2-ohm operation; 40-LED power output Meters from 0.02
up to 2,000 Watts; Truclip indicators for each ch; Mono
Bridging switch on rear panel. TIM < 0.02%; 250 W/ch
into 8 ohms; 375 W/ch into 4 ohms continuous RMS,
20-20,000 Hz, THD < 0.09%.
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