User Manual
Qu Mixer Reference Guide  56   AP9372 iss.8 
Symphonic Chorus - A faithful emulation of the 80’s 
classic chorus effect. Simple to use and frequently 
requested. The unit has just two controls, Frequency 
and Depth controlling the rate and delay range of the 
stereo modulator. The unit produces a rich, lively and 
wide chorus sound with a suggestion of very mild 
phasing / flanging. Live engineers commonly use this 
for thickening vocals and strings and creating a spatial 
sound from a mono source. This has led to two factory 
presets ‘SymphonicVox’ and ‘SymphonyStrings’. 
Flanger – Qu provides three classic flanger effect 
emulations – ‘Ambient’, ‘Vintage’ and ‘Wild’. During 
research of classic pedal flangers we found numerous 
LFO modulators and stereo splitting techniques. We 
implemented them all. For classic deep flange set 
Stereo Split and Stereo Spread off, pick triangular 
modulation, Vintage type and adjust Depth and 
Regeneration. 
Phaser - A classic 12 stage emulation producing rich 
textured phasing with plenty of control. You can 
control the number of stages, feed forward and feed 
back, and ‘zero’ depth manual mode to manually 
sweep the Phaser using the offset control. 
Gated Verb- An accurate emulation of the popular 80’s 
Gated Reverb plus two other variants called ‘Panned’ 
and ‘Powerbox’. The user interface gives instant 
access to Lo-cut Hi-cut decay spectrum filters and the 
gate envelope controls - predelay, attack, hold and 
release. 
Patching the FX  
Touch the top right tab to select the Back Panel view. 
Open the option list to select the type of FX patching. 
Touch Apply to confirm any changes: 
  Mix>Return – Known as a ‘system effect’ this 
uses a bus to Send a mix of the channels to the 
effect, and a dedicated stereo FX Return channel 
to add the ‘wet’ effect to the ‘dry’ original sound. 
This is used for effects such as reverb and delay. 
Choose which mix bus to use as its input. For the 
Qu-16, FX1 and FX2 have dedicated buses. If you 
want to use FX3 or FX4 as another system effect 
you could patch one of the Mix1-10 buses as its 
input. 
  Ch>Return – This is similar to a Mix>Return 
system effect but fed from one channel rather than 
a mix of channels. It uses the assigned input 
channel Direct Output as its source. Examples 
include a vocal channel delay, gated verb on a 
snare, or chorus added to guitar. 
  Insert – Here the effect is patched in line with an 
input channel or mix master. It is switched in or 
out using the channel Insert switch. Inserted FX 
provide a Dry/Wet control to balance the effect 
with the original signal. 
FX processing view 
Press an FX Send or Return strip Sel key while the 
Processing screen is active to view and work with its 
parameters. Touch the top of the screen to open the 
PEQ view and adjust its return channel equaliser. 
Back Panel view










