User Manual
Qu Mixer Reference Guide  18   AP9372 iss.8 
6.2  Qu Systems 
The Qu mixer has sockets for all its inputs and outputs on its rear panel and can therefore be used 
without any additional rack. However, if you wish to use a digital snake to connect remote stage audio to 
the mixer using a single Cat5 cable then there are several rack options available. The following diagrams 
show suggested combinations: 
Qu-24 Qu-24
AR84
CH1-8 Out1-4
AR2412
CH1-24 Out1-12
Qu-24
Qu-24
AR2412
CH1-24 Out1-12
Out9-16
EXPANDER
1-8 = CH17-24
Qu-24
dSNAKE
AB168
CH1-16 Out1-8
dSNAKE dSNAKE
dSNAKE
EXPANDER
AR84
Out13-167-8 = unused
1-6 = ST1-3
Qu-24
dSNAKE
AB168
CH1-16 Out1-8
15-16 = unused
9-14 = ST1-3
Qu-24 – All inputs and outputs 
are available locally. 
Qu-24+AR84 – 8 remote inputs. 
Provides 4 outputs 
Qu-24+AR2412 – Access all 24 
mic inputs near the stage. 
Qu-24+AR2412+AR84 – Adds 
the ST1-3 stereo mic inputs near 
the stage. 
Qu-24+AB168 – Digital snake 
for 16 mic inputs on stage. 
Qu-24+2x AB168 – Expands 
with a second stage box to 
access all inputs. 
AR84
CH1-8 Out1-4
Qu-16
dSNAKE
CH1-16 Out1-8
Qu-16
Qu-16
dSNAKE
CH1-16 Out1-8 Out9-16
Qu-16
dSNAKE
AR2412
EXPANDER
AB168
23-24 = unused
17-22 = ST1-3
1-16 = CH1-16
7-16 = unused
1-6 = ST1-3
Qu-16
dSNAKE
AB168
Out1-12
Qu-16 – All inputs and outputs 
are available locally. Use on 
stage or with an analogue 
snake. 
Qu-16+AR84 – 8 remote inputs. 
Provides 4 outputs, ideal for 
feeding a stereo PA and two 
monitors. 
Qu-16+AR2412 – Access all 
inputs and outputs near the 
stage. ST1-3 provide stereo mic 
inputs. 
Qu-16+AB168 – Provides a 
rugged digital snake and stage 
box for all 16 mic inputs and up 
to 8 returns. 
Qu-16+2x AB168 – A second 
stage box expands the first to 
access ST1-3 on its first 6 inputs 
and provides more outputs. 
Inputs 7-16 are not used. 










