It started happening with Cor OS 4.1. First time rebooting fixed it. Next day I didn’t get signal in the studio after multiple reboots. Then got it in the rehearsal room, with a different power supply.
It feels like a software issue, but from earlier threads I read, that it might be hardware. Support offered to have it sent to them to repair, but I need QC daily.
Could it be the USB cable? Has anyone had similar issues? I can’t use it, if it randomly doesn’t give output, since QC is the brain behind our bands operation and it could ruin the entire live show.
A video might help.
No output from USB, 1/4", XLR, and headphones? That’ll definitely need to go on for repair. There was apparently a bad batch of Output boards at some point, this was a common issue for a while
Thanks for the info! Good to know that it has been an issue and I’m not sending my QC away for no reason.
The video is basically seeing all the output meters in QC working, but no sound coming out, even though monitors and headphones are connected and powered on.
If the meters are moving, I’d trace the signal path from the last visible block to the physical output rather than starting with the USB cable. Check that the final block is assigned to the output you are actually monitoring, and that no scene or preset variation is bypassing the cab/amp or output block. Then verify the global output level, mute state, headphone/monitor routing, and any I/O or USB return setting. A useful isolation test is an empty preset with a direct input-to-output path, followed by trying the same headphones or monitor on another output. If that still meters but stays silent, compare the output meters for the specific jack and check whether a reboot changed a global routing setting.
Already tested it - was running music through USB. It happened 2 days in a row, first time output started working after restart, second day got no output at all, even after restarting all settings.
Then it started working in a different rehearsal room with a different PSU. Thing is that I need it to be reliable, since our entire setup with the band runs through QC.
In my (and many other users’) experience, once an issue keeps happening intermittently, it’s worth sending back for repairs. The unpredictability/unreliability isn’t worth the risk and most likely it will completely fail at some point. Best to get it repaired now, esp if it’s still under warranty.
as reliant as you are on that one unit, it might be worth REALLY pushing for a replacement to be sent first, if you’re under warranty. If you explain your situation they might be able to ship a new unit and then you ship yours back after receiving it.