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Buzzing from speakers. Where is it coming from?

I can hear buzzing from the speakers's tweeter when I put my ears up to it. Can't hear it from the listening positon. Speakers are Vienna Acoustics connected to a Mcintosh MC402 amp via a Pionner reciever as a pre/pro. The Mcintosh is directly plugged into a wall outlet. The Pioneer is plugged into a Monster power conditioner. I have tried just turning on the Mcintosh with no signal and it still has a buzz. Then tried plugging it into the line conditioner and still buzzing. Lastly, I tried connecting the speaker to the Pioneer and still has buzzing but slightly quieter. The buzzing occures with all speakers. The Mcintosh powers the fronts. The Pioneers powers the center and rears. Any suggetions?
Thanks
vuongd

Showing 6 responses by vuongd

vuongd OP
6 posts
 
Yes, it is close to my sat. box. I can't move it out of the way though. Thanks everyone!!
vuongd OP
6 posts
 
Thanks Elizabeth. I only noticed it yesterday when getting close to the speakers to change out a disc. Makes me feel better now.
vuongd OP
6 posts
 
Tim, it's more of a buzz and it can only be heard when my ears are right up to the tweeter. It's equal on both channels. The amp is a SS not tube.
vuongd OP
6 posts
 
I will try disconnecting the interconnects this weekend and report my findings.
vuongd OP
6 posts
 
So I think I know where the buzzing is coming from. I first started to disconnect the RCA's to the MAC. Dead silent. So buzz is not coming from the amp. Second, I reconnected the RCA's to the MAC and then unplugged the Pionner receiver from the Monster line conditioner. Plugged the receiver into the wall outlet and got a hissing instead of the buzzing. I believe the "hissing" is normal. So replugged the receiver back into the line conditioner and again got the buzzing. I also noted that I could hear an electronic buzzing comining directly from the conditioner. So it must be it. Does this sound reasonable to you guys?
vuongd OP
6 posts
 
Magfan,
Very slight hissing from the Pioneer. I didn't try turning up the volume and can only be heard if you put your ears directly up to the tweeter. Yes the buzzing does seem to sound about the same between the line conditioner and the speakers. The line conditioner is from Monster.
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