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i recently aquired a peavey tnt 130 with a bw sub and when i power on there is a very loud and very startling screeching sound!!! Im not very electronics/amplifier savy so simplicity would probably be helpful.
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Is the sound low pitched, similar to when you touch the end of a guitar cord? Does the speaker cone move one direction and stay there? If so, your amp is making DC and will damage the speaker.
If it is a high pitched squeal like tires doing burn-outs or maybe a screech owl, then we have some electronics issue.Education is what you're left with after you have forgotten what you have learned. -
A few things you could try:
With no guitar plugged in to the input jack, does the noise appear?
If so, do any of the controls affect the noise?
Is the noise there with all controls at 'zero'?Comment
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