Spacecadet3;
moving it around to rule out ground loops is nonsensical. ground loops will occur whenever there are two different paths to ground. By moving it you guaranty a different path!
Every single solitary component in your sonic chain must b grounded to the same circuit, preferably to the same outlet. The best way i know to achieve this is to have a 20A outlet, and buy the biggest, heaviest duty outlet strip you can get and plug everything into that.
if you need to daisy-=chain them do so. But use heavy strips with heavy cables and preferably upgraded or even hospital plugs. Why? solid, high current contacts. the $15 is well spent.
However, you said it "developed" a hum. You didn't say "i rearranged stuff and suddenly there was a hum". Be clear which was it? if it just developed with no changes then indeed you likely have a problem in the woofer and it requires service. A loose ground, bad connection, or failing capacity or among myriad other reasons....
I doubt its a big deal, but qualified labor is not cheap.
Good luck, noise issues can be buggers.
G
moving it around to rule out ground loops is nonsensical. ground loops will occur whenever there are two different paths to ground. By moving it you guaranty a different path!
Every single solitary component in your sonic chain must b grounded to the same circuit, preferably to the same outlet. The best way i know to achieve this is to have a 20A outlet, and buy the biggest, heaviest duty outlet strip you can get and plug everything into that.
if you need to daisy-=chain them do so. But use heavy strips with heavy cables and preferably upgraded or even hospital plugs. Why? solid, high current contacts. the $15 is well spent.
However, you said it "developed" a hum. You didn't say "i rearranged stuff and suddenly there was a hum". Be clear which was it? if it just developed with no changes then indeed you likely have a problem in the woofer and it requires service. A loose ground, bad connection, or failing capacity or among myriad other reasons....
I doubt its a big deal, but qualified labor is not cheap.
Good luck, noise issues can be buggers.
G