Distortions in a main out

Started by stereho, October 22, 2023, 09:05:58 AM

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The left main out produces digital distortion. Does anyone have any experience with this or an idea how to fix it?


Is this distortion happening with no modules active?

I hope it isn't a defective/damaged component. I suppose it could be a poor connection of some ribbon connector inside.

If you mirror the output to the sub outs, is it still bad on the left channel?

I suppose the main thing is to exhaust all the possible easy fixes first. Maybe reinstall firmware?


New firmware: check
Cable git-Sy: check
Cable Sy-PA: check
Batterie: Check
Routing..... I'll be back :-)


Try a backup of data to file and save,
factory reset,
Free "GR-55 FloorBoard" editor software from https://sourceforge.net/projects/grfloorboard/