CQ20B: First Live Use – Problems…

[BEB]

Thanks for posting. I was going to order CQ-18T until I saw this. Definitely a show stopper if the monitor mixes are unstable. Are wedges and FOH affected as well AS IEM? Maybe it is power fluctuation or a faulty unit? It seems unlikely that the CQ4You would be the culprit unless there are spurious signals, cross-talk or false touchscreen triggers. Pls post result of the Good Scene, Bad Scene comparison if it happens again. I am also interested in how your distributor responds to the issue. Thx again, Ben

[Lee7]

@BEB,

I purchased my CQ-20B upon launch and have don’t countless hassle free shows since. The app, bluetooth and USB have all been rock solid, no issues.

🙂

[Mike C]

We are using latest firmware & app versions, no AMM, auto-gains not involved, no comp/limiters, min. reverb/effects, and our outputs (1-6) are set to post-PEQ, etc.

Post PEQ is not the same as PRE or POST fader.
For monitors you generally want the mix/aux sends set to PRE FADER so any changes made to the main mix do not cause changes to the monitor mix.

[Mr Twister]

Make sure that the Feedback Assistant on all your outputs is not engaged as this can mess up your mix. If the FBA is engaged, then reset each one. This happened to me where my mix changed where I wasn’t aware the FBA was on. Once reset, everything went back to normal. I realize you’re using IEM’s however the FBA’s may have been engaged in error at some time. Just a shot in the dark. Good luck!

[Brian]

It should also be noted that A&H typically sets up their consoles so that the mute button will mute ALL outputs (including any “monitor” outputs). I don’t have a CQ to ensure this is how the mutes work on this system, but I would be shocked if it was any different from the other A&H systems.

This means if FOH needs to stop a signal from going out of the main outputs, but still allow the musicians to hear that input, they need to use the fader (lowering it to – infinity) rather than muting the channel. In addition, they would want to ensure the monitor auxes were set up “pre fader”.

[Vin]

Anyone know if a cause and fix have been identified for this issue? Starting to have buyers remorse as I just ordered the cq20b for use with my small band and acoustic trio. Reliable monitor outs is a primary reason for upgrading from my current mixer.

[Lee7]

@Vin,

There is no issue/ploblem with the aux outs, all work as intended. It is usually down to operator error.

[KeithJ A&H]

We have not been able to reproduce any issue where the level or sound of mixes changes autonomously i.e. without being told to ‘do’ something.

The usual culprits (as mentioned already in this thread) are where Auto Gain is reducing preamp gain because the preamp was set too high, or if the Feedback Assistant is removing frequencies that it believes to be feedback. The latter of these is mainly problematic if Fixed Filter mode is active, which is intended for setup and ringing out, and left detecting through the rehearsal or show. OR if Live Filter mode is active and the recovery time has been set low, so filters are added but never recover.

Thanks,
Keith.

[joseph]

I had experienced something similar where digital Trim function would affect an Analog input’s level. It happed when I connected the CQ20B to the MacBook via powered USB hub and happened only on few channels. Reboot didn’t help. Only setting Trim to 0 sorted out this.

I had such config:
CQ20B, charger and Yamaha CP73 connected to Type C USB hub, all with USB. Also Yamaha CP was connected to CQ20B with two XLR inputs. And on those inputs sound became quieter when I connected hub to the Mac. Trim somehow went down by itself.

I didn’t try to reproduce the issue and decided not to connect CP and CQ at the same time to the computer.

[Ensoniq Nut]

Was this issue worked out by anyone that actually had the problem, not just people trying to help with possibilities and Keith with his usual excellent support? There seems to be no update from any of the people who made the original complaints. Was it a pre fader issue? To me that would seem the most likely but the OP should have noticed band member complaining straight after any adjustments were made on the main app if any were. I’m currently looking at getting one of these and this seems to be an odd problem if it’s not related to comps or pre faders. I might have missed something but was an actual change seen to happen on the app settings when this was noticed or was it noticed only by ear?

[Author]

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