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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
timrhu
2,779 posts
 
I'm not familiar with your amps but that is where I suspect the problem lies. Not saying they aren't functioning properly but they may have less RFI noise filtering capability than the Bel Cantos.
tmesselt OP
56 posts
 
timrhu,

So you think that they problem may be my amps, and not something with my electrical wiring in my house?

Or maybe that the issue was there the entire time and the Bel Canto's just filtered it out and I could not hear it?
Tim
jea48
4,311 posts
 
03-28-09: Sns
Cables are not going to fix this issue, picking up RFI from the furnace is the longest of long shots, and they didn't do it with the other amp, should tell you something. Ground potential is somehow different with new amps, I don't know why.
Sns, do you have a battery operated radio? If so set the band to AM and tune in a weak radio station. Go to where your furnace is located and have the wife turn up the stat to call for heat. When the ignitor starts bet you will hear it over the radio. Guess what? The radio shares no power or ground with the furnace whats so ever..... Airborne RFI.
I am not saying Tmesselt's problem is caused by airborne RFI, but it is a possibility.

We know one thing for sure at this point.
With the old amps and old ics there was not any problem.
A little hard to blame it on the dedicated branch circuit wiring at this time.

For a test I would like Tmesselt to try the ground cheaters on the amps. If that stops the clicking sound of the ignitor then the problem can be solved at the furnace.
jea48
4,311 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.
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