In article ,
Brian Gaff \(Sofa 2\) wrote:
Yes I have a sub woofer here with internal amp which used to pick up
Radio China till a friend put in some capacitors to stop it. It was
coming in via the input terminals. Bah humbug.

Pretty unlikely to happen between power amp and speaker, though.

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*According to my calculations, the problem doesn't exist.

Dave Plowman London SW
To e-mail, change noise into sound.