Axiom Home Page Forums General Discussion Technical Questions Speaker hum

They're either not being honest, or they're dicks who don't consider their partner in purchasing decisions. I hazard to guess it's the former though - male egos can get out of hand sometimes.

Curtis- I'm curious to know if Alan's suggestions helped you out with this hum issue. I am now experiencing the same hum problem with my setup. I specifically can trace it to one component, which is my Adcom GDD-1 (digital decoder). When I turn it off, it goes away completely.

I'm going to try Alan's suggestion of reversing the plug to see if that's what the issue is. I'm really hoping that will do the trick. I'll try it tonight and report back.

-Kevin

Kevin,

If reversing the AC plug doesn't cure the problem, check the ground (or have the cable guy check it) on the cable-TV feed. This is often a source of hum and ground loops, sometimes requiring a copper rod driven into the earth outside your house and a separate ground wire at the cable junction box.

I had that situation with a house in Toronto, and only got rid of the cable-TV induced ground loop by having the cable serviceman install an earth ground outside my house. He also cleaned and sealed all the connections on the cable feed from the line behind the house.

There is another way to isolate a cable feed, using two 75-ohm/300-ohm line transformers end to end, but your problem may not be sourced to the cable TV.

Regards,