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Low buzzing through speaks

Hello All,

 

Need some serious help here. So I just (upgraded?) from a Marantz AV8802A to a McIntosh MX122 preamp. I also just got brand new Revel Performa3 speaks all around (5 channel setup). I disconnect everything from the Marantz and then into the McIntosh, connect the speaks and I have a faint buzzing through all 5 speakers (that was not there previously). I have everything plugged into a Furman Elite 20pfi power conditioner which is plugged into a dedicated 20 amp circuit. My power amp is a Simaudio Titan HT200 5 channel. This is not going through the Furman but directly into the other outlet on the same 20 amp line. I even tried plugging the Sim amp into the Furman to see if that helped-no change faint buzz is still there. I have unplugged just about everything, and the buzz is still there. It is very faint and does not get louder when I turn up the volume. Again it is faint and you have to put your ear up to the speaks to hear but it is definitely there. I have tried so many things and nothing gets rid of it. It is not my cable box (I did have that issue previously with the Marantz but as soon as I unplugged the coax from the box it went away so I just bought a coax loop eliminator connected the cable to that and noise was all gone) as I unplugged that and started there.

 

Any help would be so sincerely appreciated????

kingbr

Showing 2 responses by illaheman

illaheman's avatar
illaheman
42 posts
 

I’m rapt in attention to this. I have had this same situation for now two years.

I am music only, no theater. So, generally speaking I can hear the low buzz only from a foot away from my Revel speakers.
 

I have tried everything you have tried. Finally, after every iteration of plug in check, plug out check, new xlr, new rca, rinse and repeat I came to the following. If I take either one of my XLRs connecting between amp and preamp off at the back of the preamp or amp, the buzz goes away.

I keep my Kismet amp on 24-7, my Hegel preamp as well. When I’m not going to be listening to music during most of the week. (I mostly listen Thursday through Sunday) I detach one of the XLRs. no buzz. 

So, my solution this far is to…live with it. I’m watching this thread for any thing I’m missing…..

illaheman's avatar
illaheman
42 posts
 

Definitely not the Revels! 😂

dpop..I admire and respect your effort here. I wish you lived nearby.
i feel the same way about wanting perfection, but everything is great when I’m listening and it doesn’t affect the music. I’m still thinking it’s a cabling interference that I can’t track.

. I’m hoping you trouble shoot this out for both of us. My local stereo shop and I talked a lot about this for quite awhile, they wondered if it was a situation of my pre-amp. It’s a foreigner and they wondered if the xlr slots were wired differently. I switched to the rcas only, it didn’t make a difference in the buzz.

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