Unexpected outcome of disconnecting grounding wire
December 8, 2011 11:15 AM Subscribe
Sound system hum/buzz quieted by removing
grounding wire from turntable?
Trying to diagnose some system noise last night, I unscrewed the connection on my receiver from the grounding wire to my turntable. Remarkably, this killed the hum/buzz, but I have no idea why. It seems weird just to leave the ground wire hanging there, but I definitely prefer the new quiet.
Does anyone know if A) this is indicative of some more serious problem I need to address or B) if there is any danger in having the ground wire unattached?
TT is a Pro-Ject 1.3, receiver is a 70s Telefunken sorta like this one
. The only other component on the circuit (and on the receiver) is an Airport Express (which appears to contribute no interference).