Finally, the perfect mixer? [Allen & Heath QuPac]

I just got the QU-SB for my new studio-setup. Now I have have one Question were I couldn’t find the answer in the manuals: I’m connecting the Octatrac on the MTX-12 Out and ST 1-2 In of the QU-SB, because I want to use the OT as an external effect. But this way I get a feedback loop, because everything from the LR-Outs form the QU-SB is routed to the MTX-12 Out. How do I have to setup up the routing in the QU-SB (its the same as the QU-PAC) to avoid this feedback loop?

I would assign everything that you want to process in OT to a Mix out (e.g., 5-6) and make sure that the channels that are sent to OT are not also sent to LR Out. (I found that spending some time with the block diagram in the mixer reference guide helps a lot.)

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Hey,

I am not near my mixer, but I think I used a mixing group for aux sends. The setup was relatively straight forward. If you can wait I may have a look into this tomorrow evening. Also have a look at page 38 ff. in the manual.

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That’s what I do as well, using Mix out towards the OT (another one to FX, and another one to the Heat).

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thank you, i will look this up

thx, thats a good hint :smiley:

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I have a Qu-pac but can’t seem to find if I can midi sync the delay?

Anyone know if it’s possible and how to do it?

quick one. Does anyone use the Qu mixer as an ASIO usb interface with your DAW?

In Cubase pro 10 when I change presets in VSTs I sometimes get an audible distortion, sort of like a bit crusher effect over the output of the Qupac until I swap the presets back and forth and it goes again. It happens more so when I hold a key down and change presets. Strangely it only does it on VSTs which don’t mute during patch change, things like IL Harmour. It doesn’t do it on Linplug Spectral.

I’ve had the Qupac for a year or so but never used it as an interface before. This behaviour didn’t show up on my older PCIe sound card.

Any ideas?

Have you had a look at the A&H forum (community.allen-heat.com > Qu forums > general discussion) ? There is a long thread on “digital noise” in USB streaming that might be helpful.

yeah , they’re on about something different by what I can tell. Power fluctuations and whatnot with USB. They have about 5 different “fixes” for it , ranging from rolling back firmware to disconnecting the fridge.

Mine is to do with switching VST presets. Running two VSTs together, for eg. Harmor and CRX4, once I get Harmor to distort then CRX4 distorts. Switching the preset in Harmor fixes it and CRX4 also gets fixed. It’s really strange. It’s like Harmor somehow makes ASIO or USB lose sync.

I might do a fresh install as I can’t seem to remove my old drivers from my old soundcard now that I’ve taken the PCIe card out.

I would like to know if some kind of mastering preset exist on the net.
I’m far away of having sound mixing and mastering knowledge. So I have this powerful gear but can’t use it at it best value. Ignorance is a problem.
But i’ve so much things to do, and this specific part of sound production is so little appealing for me that I would easily use already preset that would seems simple to do for specialists but hard to achieve for me.
I saw a similar product for MPC LIVE on a post here (MPC Live and X) that give me the idea. Why aren’t specialist selling such products ?

Really interested by the QuPac.
Im trying to choose between a Presonus Quantum + 2 x ADA8200 (24 inputs)
or the QuPac since i need more inputs and outputs for my synths and FX units.

Is it possible to achieve good latency using the QcPac and a Mac for example ?
I would like to use the QuPac as an audio interface too since i have an hybrid setup though im mostly using hardware with the occasional sotf synth.

About the QuPac :
I understand you are limited to 48khz ? I will need to convert old project i think.
You can access all the function using the integrated touch screen but how is the workflow ?
Any other alternative worth considering ?

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Latency should not be much of an issue, as you don’t need to monitor whatever you are recording through the software but directly through the mixer. If all your audio sources are hardware and you don’t have any tracks running in the box your latency is the mixer’s own latency which is 0 for all practical purposes.

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i’m interested!

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yes. if you adjust the Ableton settings (or whatever DAW), I achieve no noticeable latency. Just in and out.

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Yep i know but its just for the occasional use of softsynth (I like Uhe plugins a lot)

So everyone still happy with the Qupac ? Does it make sens for studio use ?
Its about the same price as a sound interface + 2 adat ( well if i get the 8200 from Behringer).

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i’m still happily using it and i primarily monitor through my DAW as opposed to the mixer itself, but i also use the onboard effects (eq, comp, reverb etc) quite a bit.

though the DA isn’t all that on it, so i actually monitor using an apogee duet 2…aggregated interface via OS X. not sure if that’s an option for you.

@PlumWrinkles AR84 sold :-/ . . . while it’s nice for the extra ins/outs, the thing makes a ton of noise with its fan, but other than that, it was a solid addition to the qupac.

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Hi Adam, i am going the digital mixer ruth and after my research it looks like qu-16 is going to be my chose. My question is, is qu-pqc letting you multitrack to usb thumb stick ? i was under impression it does only stereo to stick and multi to hard drive.

It does multitrack but it works much smoother if you multitrack into daw rather than usb. Will be very dependant on USB drive and I’ve had lots of glitches.

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