Insane ground loop; anybody wanna try?
Hi, folks. Sorry to be unresponsive; had some actual work to do there for a while. Thanks as always for the input. Phase: All three circuits I checked are on the same phase — if I understand correctly — meaning all three are on the left half of the panel. @toddverrone I think that answers your first question, yes? As to the dirt or loose contact: Are you talking about a contact at the breaker in the panel? The breaker has only one leg, doesn't it — is there a neutral or ground lead there? If you're talking about a problem at the outlets themselves, the problem is the same on two different outlets in my listening space so it seems unlikely that's it. @gs5556 Yes I did, but thanks for the suggestion. @almarg Yes, either amp behaves the same way with the other amp clear of the system. Thanks, fellas! |
Since location 1 does not have the problem but locations 2 & 3 are not tells me the problem is not with your equipment but with your wiring or something plugged into the wiring. So I would suggest either start unplugging devices/appliances etc and see if the hum goes away. If it doesn't I would suspect a corroded or loose connection in the wiring on that circuit. |
@xti16 Hey... I think I agree with what you're saying but I'm not understanding the first line. Are you saying: "Since locations 1 and 2 don't have a problem, but location 3 DOES..." etc.? If that's what you're suggesting, it makes sense to me. I've tried nearly everything else and the fact that the equipment works in some locations certainly suggests that the equipment isn't the problem. Just confirm that I've got it right above. All of that said, what continues not to make sense is that the voltage potential in location 2 and 3 is the same (and too high), but only location 3 has the killer hum, where location 2 is basically okay (at least sonically). Thanks! |
