Question about Adcom GFA-5500 2-Channel Amplifier
This sounds like an electrolytic capacitor that's discharging. Follow the wires from the speaker terminals in the amp to the PC board. This should lead you to the main amp board. If you look around it you might see what is called speaker coupling capacitors. I reckon they could be a bit larger than others and be around 220 to 470UF or perhaps higher. These capacitors will be the last thing the signal goes through before the output goes to the speakers. They can cause that. Otherwise it could be a capacitor in the power supply section.
Posted on Aug 24, 2010
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Posted on Jan 02, 2017
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