User Manual
Qu Mixer Reference Guide  79   AP9372 iss.8 
DAW Bank Up/Down – You can assign SoftKeys as 
Bank Up and Bank Down to scroll through the banks 
on the DAW when using DAW Control (Mac computers 
only) 
MMC transport Control – Transport controls are 
available in the Setup / Control / MIDI screen. These 
can also be assigned to SoftKeys for quick access. 
Assign the SoftKeys using the Setup / Control / 
SoftKeys screen. 
Stream audio to the computer – Audio is sent via the 
rear panel USB B port. Go to the Setup / Output 
Patch / USB Audio screen to choose which Qu 
outputs to patch to the USB stream. 
CH/ST/Grp source button 
Set this to Insert Sends if you do not want the input 
channel and group USB sends to be affected by the 
mixer processing (EQ, Comp, Gate, Delay). This sends 
the raw Preamp and unprocessed Group signals to the 
USB stream and is the typical setting for live recording. 
Set this to Direct Outs if you want the input channel 
USB sends to follow the channel global Direct Output 
option. It also sets the Group sends to be post-
processing and post-fader. This is the typical setting 
for studio recording (working with a DAW). 
 The global Direct Output option affects all inputs 
and is set in the channel Routing screen. 
Stream audio back to the Qu mixer – Audio is 
returned via USB B. This is mapped one-to-one to the 
inputs channels. Use the Preamp screen Fn key 
Source page to patch USB B to the channels. 
Make sure you have set ‘USB B Streaming’ as the 
global USB source. 
 Most DAWs allow flexible patching and routing of 
tracks to/from any interface I/O. However if you are 
using iTunes, QuickTime or similar for playback to the 
mixer, the stereo output will default to the Qu Input CH 
1 and 2. You can change this manually on the Mac, 
and use the latest version of the Qu Windows Driver on 
the PC. 
The following sources can be patched: 
X  Unassigned 
CH    Mono channel (Insert or Direct Out) 
ST    Stereo channel (Insert or Direct Out) 
FX Ret  FX returns 1-4 pre-fader 
Grp    Group (Insert or post-fader) 
Mix    Mix 1-10 post-fader 
LR pre  Main LR mix – pre-fader 
LR post  Main LR mix – post-fader 
L+R pre  Main LR mono sum – pre-fader 
MTX  Matrix post-fader 
PAFL   Stereo PAFL monitor 
Mac - Change this in the OS X preferences. 
Go to Utilities / Audio MIDI Setup / Audio 
Devices, select the Qu mixer and click on 
Configure Speakers. Then assign stereo 
Left and Right to the required interface 
output. 
PC – From Qu Windows Driver version 
2.20.5 onwards this audio returns to the 
Qu-16 and Qu-24 ST3 channel, or to CH31-
32 for the Qu-32. Download the latest driver 
from the Allen & Heath web site. 










