chriswhotakesphotos Posted September 5, 2016 Share Posted September 5, 2016 Hi, all! Today I've run into a problem with my GFA-535. When I went to switch back to it from a different amp, I noticed an unusual buzz start to come from my subwoofer when I turned it on. Not wanting to risk my Heresies in case something was wrong (glad it has speaker selectors!), I plugged one of my B-10s into the left channel on the other set of outputs. Once patched in, it revealed a loud, nasty static buzz (I also tested the other channel.) It only does it when it has something connected to either input. It could be a bare wire and it happens. I connected my iPhone as a source when trying to single out the amp from the preamp and it still did this, without seeming to react to the signal from the phone. It also seems to certainly cause feedback back through the inputs, as my subwoofer only buzzed when the amp and preamp were connected. Now, a few things that happened recently. First, one of the metal rings surrounding the right channel RCA plug had come out when unplugging it recently, leaving just bare plastic. I always assumed these were cosmetic, since the other one was never there (I received the amp that way) and it was never a problem. I also I believe I plugged the pre back in with the preamp still on (and the amp off). How could I go about diagnosing this, and does it seem like something I could fix myself? I like the 535, and while it would be fun to shop for a new amp, I wouldn't be happy to trash this one. Thanks! Quote Link to comment Share on other sites More sharing options...
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