I am using the QU-PAC and QU16 mixers and have had a couple of odd things happen with these mixers since the v1.9 update.
I had the QU-PAC on a gig last weekend and for some bizarre reason the 48v Phantom power would power my condenser vocal mics!? I tried different channels, leads and mics and none of this sorted the problem. I re-booted the mixer and everything worked perfectly!?
The QU16 is installed at a venue and one of the engineers had an odd thing happen. Basically the audio from a few channels kept cutting out!? He also did the usual troubleshooting of different mics, leads and channels but none of this solved the issue. He re-booted the mixer and everything worked perfectly!?
Has anyone else been having any issues since the v1.9 update?
My headphone out volume changed. It could be some setting I’m not thinking of, but I can’t figure it out.
For the entire year and a half I’ve owned the Qu-16, my headphone volume on the Phones out was set at 1:00. My headphones are Sennheiser HD 380 Pros. I loaded the 1.9 update and rebooted. Ever since that moment I’ve had to set the headphone volume at 9:00 because now 1:00 on the Phones out is insanely loud. The Alt out and main outs to my monitors are unaffected.
No intermittent audio problems or phantom power issues here, though.
Since I installed v1.9 i got sound glitches. At first I thought they were only for USB-B streaming, but then realized that it was from incoming signal also.
If I got to the QU Control Panel and changed the streaming mode (eg. from ‘safe’ to ‘normal’) it would be ok for 2 or 3 minutes and then come back again.
My only solution was to get back to v1.8, but I really want this windows DAW control
@dickiefunk can you confirm if you’ve had this issue since the hard reset?
@veredasestudio sounds like this is a different issue. Have you checked the other forum threads? There may be a solution to a symptom similar to what you’re reporting in this thread: https://community.allen-heath.com/forums/topic/usb-b-streaming-audio-distortion-qu-24
Can you confirm if this is the case and if changing your default sound device in the OS to the onboard device but still using the Qu in your DAW prevents this?
@daleshirk I posted a comment in your original thread re this. Can you check and let us know?
Hi Harry, I have looked into that thread, changed my gfx card (luckily I had a spare non-nvidia based), did this step you answered with and the issue continued. When not in DAW every single file i played started to glitch after a couple of seconds.
As soon as i downgraded my qu32 firmware things got back to normal. It’s quite clear to me that the issue is this update. Both incoming and streaming signal are now ok, but I really want DAW control for my qu32.
If you have a Reaper template setup in your iMac with channels muted to your Custom layer
and you disconect the USB DAW OUTPUT PORT return then you cannot unmute those channels in the custom layer of the desk.
I discovered this by way of using [Reaper] fader automation ITB [in the box] where you can turn off the DAW output port coming back into the QU so you can repeatedly adjust channel strip volumes in a mix down stage ITB [in-the-box]
Its hardly a fault but … but it would be good if corrected
its a way of getting around the “touch sensitve fader for automation requirements”
I had another interesting glitch with the QU-PAD app at the weekend using a QU16. Basically, the purple HPF curve kept jittering left to right on the screen on a few channels. It only lasted for a few minutes then didn’t happen anymore throughout the event!?
I’ve had an interesting issue recently but perhaps it has nothing to do with 1.9 although I never noticed it prior. It appears the the signal coming from main out R is not as strong as the signal going to Main out L. I changed speakers (powered) recently and it has happened with both. I was using Line 6 stage scape speakers L3t X 2 and L3s(subs) X2 when I first noticed this at a sound check at a gig. All 4 speakers were at the centre detent 12:00 position. I compensated by turning the R side up on the speakers until it sounded even. 2 months ago I decided to switch over to the new Bose F1 series tops and subs and during sound check this past Friday night I noticed the same thing. I compensated doing the same thing turned up the right side on the speakers.
Now perhaps there is some main out pan setting that I just haven’t found. This is my real hope because that would be an easy fix (provided that what it is set at now is favouring the left side). Prior to finding this thread I though maybe there is some sort of mechanical issue with the mixer and that it might need to be serviced. But now I am thinking that it may be some software glitch with this latest software update.
I’m using qu pac, when I go to qu-control I don’t really see much there other than a blank set up to start from. Main out balance doesn’t seem to be one of the options in that section. It would be great to find a main out balance or pan setting just to see if it’s off a bit.
That said, I set up today for rehearsal and couldn’t really notice the issue. It could just be that it’s harder to detect in a smaller room with the speakers closer together. Or maybe it’s something that doesn’t happen on every boot up of the mixer, which would bring us back to maybe a 1.9 anomaly. I’m going to try to monitor this as closely as possible.
Neill, if you see that the panning is evenly split, the next thing you can check is your cables. If you are using the same cables for your L/R outputs for each time you noticed this issue, try changing the cables to see if that fixes the issue.
OK … I’ll check that as well. I have EAS/EBU cables that I only use for going from the mixer to the speakers. I got them for when I was using the line 6 mixer as well as it sent a digital protocol as well as the digital signal and these were the cables that were recommended. But I’ll do as you suggest and try switching things around and see what happens.
Just to update, I have not been able to notice any difference in level between the two sides since have started testing at home. I have not tried different cables yet to see if using non matching cables makes a difference or if I have a problem cable.
As a result of just playing around, I found the balance control on the actual Qu Pac itself, so there is one good thing. It’s not as obvious as it is on the iPad. Either way it was set to the centre position so that wasn’t the problem.
I think the cables are as good a candidate for causing the issue as v 1.9 maybe even better. The only way to really know will be if it happens again and I can swap the cables at that moment without powering down the Qu Pac. I’ll do some testing with various cables in the meantime.
@dickiefunk have you had this since. Could have been an issue with the iPad?
@neill00 For Qu-Pac select the LR master on screen, press Routing. The output balance is here. Alternatively in Qu-Pad and make sure you’re viewing the LR Processing tab (top left) output bal is on the first page of the tab. If this is centre, do you have a way of measuring the level from the outputs? Is metering showing the same on both sides? If so, try a hard reset and test again.
Let me know how you get on.
