I have a KRK 12s as" Active Studio Sub. Its approx. 3 years old.
For the last few weeks this has beening happening:
• After about 5-10 mins of being switched on its makes a very low rumbling earth noise
•*When switching off you get a failry loud 'pop' noise
I have tried removing any leads/cables plugged into it and removed the power supply for a few minutes but it still pops loudly when turning off without anything plugged into it.
I have read the coils can get damaged from this popping.
Is there any reason why it doing this?
Thanks
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