On Sun, 2015-02-08 at 09:06 -0800, Len Ovens wrote: > Beware old building with additions :P It appears we have power coming > from two power entrances with two different earth grounds to the panels. I > had found two power cords with the ground pin pulled which I replaced... > big ground loop noise. I tried (as read from a number of sources) making > unballanced cables with a small resitor in the ground path but this made > things worse not better. I will be running a power cord from the stage > back to the mixer next. I've been doing that for the last 5 or 6 years as well. It also keeps you from getting the crap shocked out of you when you're playing guitar and singing ;-) > All of our signal in paths are already isolated. > It is only the two monitor mixes to powered monitors that are unballanced > and causing problems. The outputs from the mixer are ballanced, but the > lines to the stage are not... I may make cables to allow me to use two of > the input ballanced lines instead and two more isolation boxes as a longer > term fix. There will be a new stage going in and I have already been > asking that power and grounding be corrected for the whole signal flow. > > -- > Len Ovens > www.ovenwerks.net > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
