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Hum in ARC Ref 3 not on 0 but 1-103 light buzz

I'm suddenly experiencing a strange phenomena with my ARC Ref 3 (250 hrs on the tubes). On the 0 setting of the volume "dead quiet" with 1-103 a constant sound like the sea whispering noticable on 2 meters from the speakers. Any idea where this comes from? It is from both the two speakers. Tube problem?

Thanks in advance!
broederen

Showing 2 responses by jmcgrogan2

jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Sounds like a ground loop hum. Since it wasn't there when you first bought the Ref 3, I can only assume that you have recently made some electrical change in your home that is now inducing this hum. It could be anything from new audio equipment, to new cable or satellite tv, to a dimmer switch just installed. So you have to start troubleshooting, thinking of any recent changes may be helpful.

This link may be of some help. Good luck.

Cheers,
John
jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Broederen, thanks for the update. Let me ask you a question, in your original post, you stated that the ARC Ref 3 "suddenly" started having these noise problems. Looking back, did these noise problems suddenly occur when you introduced the Kronzilla into the mix or started running the Kronzilla just as an amplifier?

I'm just trying to line up timeline's to figure out if you did in fact make an electrical change in your system that instigated this noise issue. It would seem strange that the Ref 3 was operating properly, then all of a sudden had problems. That's why I originally suggested that there was a electrical change made that initiated the noise.

Cheers,
John
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