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Amp Noise

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25-11-2019 21:31:41 Mobile | Show all posts |Read mode
Afternoon all,

Recently got a new Marshall amp. I'm a behinner and this is the first amp I've had. I've noticed it's making quite a noticeable swirling sound. I wondered if that's normal? It get louder the higher I turn up the volume. I've tried a couple of guitars and it's the same.

Thanks!
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25-11-2019 21:31:42 Mobile | Show all posts
Which model is it?

Have you got the gain cranked up or do you get the sound at all levels?

Could it be a power supply issue?
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25-11-2019 21:31:43 Mobile | Show all posts
Do you live in a flat or communal block? Have you tried it at a friends house? It could be a ground loop issue, some info here but heavy reading I'm afraid.

I have read about using isolating transformers to cure it. Have you spoken to the store you bought it from?
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