Inconsistent Monitor Signals

[WORDpictures]

Any clues what might be causing inconsistent monitor signals through our Aviom system? The instrumentalists say some signals will suddenly change during performance (with no apparent cause from the board). For example, an instrument might suddenly drop out of the monitors. Someone said it sounded like "ducking." I see no reason for this from the set up on our Yamaha LS9 board - there is minimal compression and no duplication of signals to the multiple monitor channels. Our service rep couldn't hear it when he came by and couldn't find any reason for a problem.

Could there be a defect in the CAT5 cable? Has anyone experienced this and have suggestions?

[Gracetech]

What are Aviom channels feeding off of? Direct outs? Mix Outs?

If they are feeding off of outputs that are post processing or fader then that would explain your issue.

I've never run into an issue with the Avioms that sounded like they were changing on their own. It's usually something with the setup of the console. There is a simple explanation, just need to find out what that is.

Feel free to save your console setup and post it up some where. I can take a look at your routing and figure it out for you.

crt

[WORDpictures]

Mix Outputs, I believe they are pre-fader but there hasn't been any changes made to faders when the problem is noticed regardless. So... it doesn't make sense to me or our rep. Just wondered if there's another explanation. I also often have to reset the board because the singers tell me the wedge monitors aren't right. They say they are fine after I reset them. Could there be some glitching in a digital board that could cause this?

One guitarist complains of it more than the others, he uses ear buds where the others use headphones, though they also say they notice it just not so much.

[cmchamp]

are the mixers powererd over Cat5, or are they using the wall warts?

[WORDpictures]

CAT5 to the Aviom mixers.

[Gracetech]

I'm 100 percent positive that it's something in your configuration. In fact every issue like this has been a configuration in the many different scenarios i have been involved in.

If you can provide a configuration file it would only take about 10 minutes to find your issue.

crt

[Gracetech]

BTW what firmware is your LS9 running? Done any firmware updates lately?

crt