Chris:
Thanks for your help as usual.
My recording unit is a JoeCo BBR1a with only ADAT in, but I also have a HD24 with analog in. I will try to send a mix of main LR to that unit via the console & see what happens.
The volume changes also appeared in the ME-1’s which are direct outs post preamp, ie before the mix bus…which would eliminate the D/A converters as well. It is a mystery…
More shall be revealed.

Rick
GLD80
AR2412
AR84

All
So after resetting GLD to factory defaults and rebuilding my shows, the weird sudden volume changes were gone and the system worked perfectly!! Thanks to Ryan at American Sound & Lights and everyone else who made helpful suggestions.
I am greatly relieved that this is behind me.

Rick
GLD80
AR2412
AR84

Michael
OK so I am not crazy after all. Well, not about this issue at least…the voices told me to say that!
So, last night again the volume drop happened, and in addition, ene tho I had the mains at -10, I was getting peak red lights on the mains every once in a while. Very weird. This started about 1/2 way through the 2nd set after the volume drop. The drummer will often over drive his mic briefly but this has never caused the mains to indicate an red light! And not only did the mains red light, but also the fx send and returns.. I suspect there main be a problem with the AR2412, maybe after it gets warm, it’ will start to malfunction in weird ways..
I will watch for this again tonight..same band, same venue. I left everything as it was at the end of the night and believe the system will be much louder on start up than it was at the end of the night.
What are you going to do about this on your GLD? I will be contacting my local rep and or a trouble ticket to A&H.

Rick
GLD80
AR2412
AR84

Well my volume issues are back with vengeance. As my A&H rep suggested, I reset the GLD to factory defaults, replaced the snake with a A&H approved one, rebuilt my show from the factory templates. Everything was OK for about the first 45 minutes or so, then I noticed a 5-10db drop in volume in both the mains, a monitor wedge (mixed by an ME-1) and also in the ME-1’s on stage.
Later after I had push everything up in volume (not gain or Trim) to compensate, there was a sudden increase in volume (I think gain) which then caused the floor wedge to start feeding back. The mic was then so hot, it took only tapping it lightly to cause the beginning of feedback. Prior to the gig starting this was not so, no feed back, plenty of volume. There were no changes to anything on stage that could have cause this. It was as if the gain on all the mics was suddenly increased. Then once I thought it had settled down, volumes went down again…Very weird & frustrating.
I found this issue happening on 2 different Cat5 snakes, with 2 different bands in different venues, using different speaker systems and even with different mic cords to the mains. Power was never an issue in any of the venues.

This has been the most frustrating experience I have ever had mixing sound! Could not for the life of me account for these changes. Where I most noticed it was in the vocals, but it also in the other instruments. Everyone using the ME-1’s with earbuds also reported a volume drop. I could not find the issue on the 24 track recording I made via MMO ADAT outs. This makes me suspect a problem with AR2412, that maybe it goes haywire after it has warmed up for 45 minutes or so. The fan on the 2412 seems to be working OK. This problem started after the firmware upgrade 2 prior to 1.20. (I don’t remember the number).
So I have written to my A&H rep to see what is next. The mixer is unusable with current functioning.
BTW does anyone know how to read a downloaded GLD log file in windows? Kinda hard to read on the console, would rather print it out & make notes, etc.

Rick
GLD80
AR2412
AR84