MarshallPope
Well-Known Member
My church has two identical older wireless receivers that we use for the lavs. Our pastor's [I'll use "P" for this] has had a noticeable buzz around 8-16k Hz for a couple of weeks. I finally got around to looking at it today. I suspected a ground loop but did some quick metering and didn't see anything out of the unusual. The buzz occurred whenever the P channel was unmuted, whether or not the transmitter was turned on. The music minister's ["M"] did not have a buzz, but a slight "woosh." I'm not really worried about it, as it isn't noticeable unless you are listening for it. These are plugged in to the same power strip, along with the amps, but in a different part of the room as the console. I have no idea if they are on the same circuit or not. While trying to troubleshoot, I first swapped P & M on the back of the console. The buzz traveled with P and the woosh with M. I then switched the cables at the receivers. The woosh traveled with M, but the buzz disappeared. I also switched the power cords on the receivers, with no difference. Any idea why that combination of xlr and receiver would result in a buzz while the cable could be used with an identical receiver without a buzz? It works now, but I would like to know -why- it works so I can fix it right.
Thanks
Marshall
Thanks
Marshall