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HELP I think I have an electrical issue??

A few months ago I had 2 20amp dedicated lines with hospital grade duplex's installed. All was well with my Bel Canto Ref1000 mono's. Well a few days ago I just got a pair of Genesis m60 tube amps. I was noticing a clicking noise coming through my speakers. I first noticed this when I was just warming up the amps with no source on. Then I also noticed the clicking when a source was on with music playing.

So it turns out that the clicking noise is my electric ignition of my gas furnace, is somehow playing through my speakers (Or maybe its just one of them, not exactly sure yet) This is a very strange and annoying. If anyone has any ideas please let me know!

Tim
tmesselt
jea48
4,313 posts
 
Oh, and I have also put the cheater plug on both amps and the clicking is still there.
03-28-09: Tmesselt
Why does that not surprise me......
sns
3,003 posts
 
Jea, I can only go by my experience, exactly the same problem, dedicated ground fixed it and a nice sonic boost to match.

I'm also not saying it can't be RFI, just a long, long shot. He didn't have the problem with the other amps and same cable, points to amps as problem. It could be the other amps did a better job of filtering out EMI and RFI.

I just think dedicated grounds are the resolution to all these sorts of problems, I'm not alone, many are using dedicated grounds.
sns
3,003 posts
 
I can also understand why lifting the grounds on amps has no effect. I surmise the garbage is riding on grounds through rest of system. Was always there, other amps may have had better filtering or ground potential has changed. Again, lifting the grounds temporarily at AC outlets will tell if grounds are the issue. Everything is just speculation until this probability is eliminated.
jea48
4,313 posts
 
Myths
sns
3,003 posts
 
A balanced transformer didn't eliminate my problem, I do agree it eliminates a lot of garbage riding on lines.

A transformer and balanced cables may or may not do the trick for Tmmesselt.
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