Allen & Heath Limited
Kernick Industrial Estate
Penryn, Cornwall,
TR10 9LU, UK
www.allen-heath.com
Overview
Technical Datasheet
Rack-mountable Digital Mixer for Live, Studio and Installation
5” (800x480 pixel) colour touch screen for quick control
16-32 Mono Inputs (TRS + XLR)
3 Stereo Inputs (TRS)
4 stereo FX with dedicated Sends and Returns
12-24 Mix Outputs (XLR)
4 Stereo Groups
2 Stereo Matrix Outs
Customizable Qu-Control screen
15 SoftKeys
Extra stereo outputs – AES digital, Alt Out, 2TRK out
Talkback mic input
dSNAKE Cat5 snake for remote audio using AR2412, AR84
or AB168
4 Mute Groups
4 DCA Groups
AnaLOGIQ™ total recall analogue preamps
Effects ported from the flagship iLive console
Dedicated stereo FX return channels
Master strip for quick access to mix levels and processing
Input channel linking for stereo sources
Input processing – Preamp, HPF, Gate, PEQ, Compressor,
Delay
Output processing – PEQ, Graphic EQ, Compressor, Delay
Quick copy and reset of processing, mixes and scenes
100 Scene memories
Channel Safes, Global and per Scene Recall Filters
FX, processing and channel User Libraries
Qu-Drive for stereo and 18-track recording/playback to USB
hard drive
USB streaming to/from an Apple® Mac or Windows™ PC
computer
MIDI DAW Control driver for Mac (converts to HUI or Mackie
Control)
USB transfer of Scenes, Libraries, Shows
User assignable Custom Layer
Qu-Pad engineer’s mixing wireless remote app for iPad
Qu-You personal monitoring app for iPhone, iPad, iPod
Touch
Compatible with the Allen & Heath ME personal mixing
system
User Permissions to restrict operator access
Qu-Pac Technical Datasheet 1 Allen & Heath Ltd
Dimensions
A&E Specifications
The mixer shall be a compact, rack-mountable digital mixing solution
without physical fader strips, but shall include 16 mono and 3 stereo
line input channels mixing to 12 mix outputs and 4 stereo rack FX
engines, 4 DCA groups and 4 Mute groups. All output mix channels
shall contain Insert, Parametric EQ, Graphic EQ, Compressor, and
Delay. Signal delays in the system shall be adjustable in
Milliseconds.
Pre/Post fader routing and assignments, processing of signals, level
sends, FX sends, DCA and Mute Groups shall be accessed and
adjusted via a 5-inch colour touchscreen provided on front panel of
the mixer or from Apple iOS touchscreen devices.
There shall be a Channel page on the touch screen replacing
physical fader strips with different tabs providing access to Input
Channels, FX, Groups, Mixes, DCA and Mute Groups and control of
level, mute, pan and PAFL for the selected channel and a fullycustomizable page giving access to channels and settings tailored to
the user and the specified application. Several ‘widgets’ shall be
assigned to this page, these shall include channel levels, mutes and
assignment on/off switches and shall be arranged to suit the user
requirement.
The front panel of the mixer shall include 16 custom select keys and
indicators, giving access to any combination of user defined input
channels, output channel mixes, FX sends, FX returns or Main mix
and also 15 assignable SoftKeys giving access to DCA mute
masters and MIDI control as well as Tap Tempo, Instant Scene
Recall/Navigation or PAFL Clear.
There shall also be dedicated keys for quick Copy/Paste/Reset of
mixes and processing parameters.
The name and number of the selected channel or mix shall always
be identified on screen when in the processing or routing pages.
The mixing system shall include application software for Apple iOS
touchscreen devices connecting via a wireless network router to an
Ethernet LAN port.
The application shall allow control of functions including the preamp
gain, phantom power, mix channel levels and shall have a graphical
representation of physical controls and indicators including signal
processing parameters and shall provide control of channel
processing including Parametric EQ, Graphic Eq, Compressor and
Delay.
Routing assignments and level adjustments of input signals to all
mixes and bus shall be provided and the application software shall
provide signal metering and processing threshold indication when
online including the Real Time Analyser.
A global source option for the direct out of each input channel shall
be provided in the routing screen. The tap-off point shall be adjusted
to the following positions in the processing path: post Preamp, post
HPF, post Gate, post Insert return, post PEQ, post Compressor, and
post Delay. There shall be further global options for Follow Fader,
and Follow Mute. Direct outputs shall be assignable via the mixer
soft patch bay to any physical output socket interface channel or ME
monitoring channel.
A signal generator shall be provided with the ability to send a
variable level signal to any output mix with visual assignment status
on-screen. The following types of signals shall be available: Sine,
White Noise, Pink Noise, and Band-Pass. Comprehensive input,
output, and FX channel and RTA metering shall be provided onscreen.
A Channel Ducker shall be provided to reduce the level of selected
channels when a designated channel is in use. This channel priority
shall be available across all mono and stereo input channels and
also channel groups.
4 user-assignable effect racks shall be provided with a library of
factory preset FX emulations. The FX racks shall be individually
configurable as send/return from a channel or FX/Mix, or inserted
into input or output channels.
A Talkback facility with the ability to send to any output mix with on
screen status indication and an option to enable talkback latching
and HPF shall be provided.
A default Mains to PAFL sub-mix and a stereo quarter-inch jack
socket for PAFL headphones output shall be provided, with an
analogue output level control.
The mixer shall include stereo and 18-track recording/playback to
optional USB hard drives. The format shall be 48 kHz/ 24 bit WAV.
The mixer shall also play back stereo WAV files at 44.1 or 48 kHz
and have a USB Type-A connector on the surface for recording,
playback, data-transfer, archiving, and firmware updates to USB
drive. On the rear panel there shall be a Type-B USB connection
following the high-speed USB 2.0 standard for multi-channel, bidirectional audio streaming of 32 out / 32 in and MIDI DAW control
between the mixer and a computer.
DAW transport control using popular DAW control protocols for
computer shall be available via the touch-screen.
The mixer shall provide a Fast Ethernet (100 Mbit/s) port for Cat5
cable connection to a wireless router (access point) for MIDI over
TCP/IP control of mixer parameters via Apple iOS touchscreen
devices for live mixing control.
There shall be a local “dSNAKE” Cat5 Ethernet audio expansion port
with locking Ethercon connector, providing up to 38 input signals and
20 output signals, plus 40 personal mixing sends to be connected
over a single cable ‘digital snake’ and allowing Remote Preamp
control to an Allen & Heath AudioRack, or Allen & Heath ME
Personal Mixing Systems.
Input and output channel processing and parameters in the mixer
shall be saved on demand as a user library item for recall in other
channels. Individual processing sections shall be save-able on
demand as user library items for that type. All library items shall be
stored on board and archived with the show-file. Library items shall
be transferrable to USB drive as portable data to be used in other
systems. The mixer shall provide the facility to save 100 scenes of
the settings of the mixing system and these scenes shall be
nameable. A comprehensive table of Scene Safes shall be provided
to prevent selected items from being changed from their state when
the safe was enabled. A comprehensive scene filter shall be
provided per scene to Allow / Block each parameter saved in a
scene from being changed as that scene is recalled.
An option shall be provided for password protection for log-in of
several users with different levels of system access and
permissions. A particular scene may be chosen to be recalled per
change of user-login if desired.
The mixing system shall periodically record all current settings and
return the mixer to that state after reboot following a power-cycle.
The mixer shall have a built in power supply accepting AC mains
voltages of 100~240V, 50/60 Hz, 55W max via an earthed 3-pin IEC
male connector mounted on the rear chassis. A Two Pole PushButton switch shall be provided near the mains input. Recommended
operating temperature for the mixer shall be 5 to 35 degrees Celsius.
The mixer shall be the Allen&Heath Qu-Pac Digital Mixer.
Qu-Pac Technical Datasheet 3 Allen & Heath Ltd
Block Diagram
Qu-Pac Technical Datasheet 4 Allen & Heath Ltd
Inputs
Control
Mic/Line Inputs
Balanced, XLR and 1/4" TRS jack, fully
recallable
Touch Screen
5" TFT, 800x480 resolution
Input Sensitivity (XLR / TRS)
-60 to +5dBu / -50 to +15dBu
SoftKeys
10
Analogue Gain
-5 to +60dB, 1dB steps
Mute Groups
4
Maximum Input Level (XLR /
TRS)
+19dBu / +29dBu
DCA Groups
4
Input Impedance (XLR / TRS)
>5kΩ / >10 kΩ
Network
TCP/IP Ethernet for MIDI and iPad app
THD+N, Unity gain 0dB
0.0005% -89 dBu
(20-20kHz, Direct Out @0dBu 1kHz)
THD+N, Mid gain +30dB
0.001% -83dBu
(20-20kHz, Direct Out @0dBu 1kHz)
Input Processing
Stereo Line Inputs
Source
ST1, ST2 connector
Balanced, 1/4" TRS jack, half normalled
CH1-32
Local, dSNAKE, or USB
ST3 connector
Unbalanced, stereo 3.5mm Mini Jack
ST1, ST2
Local, dSNAKE, or USB
Input Sensitivity (ST1, ST2 /
ST3)
Nominal +4dBu / 0dBu
ST3
Local, dSNAKE, or USB Stereo
Trim
+/-24dB
USB Global Source
Qu-Drive or USB B Streaming
Maximum Input Level
(ST1,ST2 / ST3)
+22dBu / +18dBu
Input Impedance
>7kΩ
Stereo Linking
Odd/even input pairs
Parameters linked
EQ, dynamics, insert, delay,
assignments, sends
Outputs
Link options
Preamp, polarity, sidechains,
fader/mute, pan
Mix1-10 and LR Out
Balanced, XLR
Polarity
Normal/Reverse
Group and Matrix Out
High Pass Filter
12dB/octave 20Hz – 2kHz
Output Impedance
<75Ω
Insert
Assign FX1-4 into Input channels
Nominal Output
+4dBu = 0dB meter reading
Delay
Up to 85ms
Maximum Output Level
+22dBu
Residual Output Noise
-90 dBu (muted, 20-20kHz)
Gate
Self-key Sidechain
Threshold / Depth
-72dBu to +18dBu / 0 to 60dB
Stereo Alt Out & 2Trk Out
Balanced, 1/4" TRS jack
Attack / Hold / Release
50us to 300ms / 10ms to 5s / 10ms to 1s
Source (Alt Output / 2Trk
Output)
Patchable / LR post-fade
Output Impedance
<75Ω
PEQ
4-Band fully parametric, 20-20kHz, +/15dB
Nominal Output
+4dBu = 0dB meter reading
Band 1
Selectable LF Shelving (Baxandall), Bell
Maximum Output Level
+22dBu
Band 2, Band 3
Bell
Residual Output Noise
-90 dBu (muted, 20-20kHz)
Band 4
Selectable HF Shelving (Baxandall), Bell
Bell Width
Non-constant Q, variable, 1.5 to 1/9th
octave
AES Digital Output
2 channel, 48kHz sampling rate, XLR
2.5Vpp balanced terminated 110Ω
Compressor
Self-key Sidechain
dSNAKE
Threshold / Ratio
-46dBu to 18dBu / 1:1 to infinity
Inputs
Remote source for CH1-32, ST1, ST2,
ST3
Attack / Release
300us – 300ms / 100ms - 2s
Outputs
Patchable from Mix1-10, LR, Grp1-8,
MTX1-4
Knee
Soft/Hard
Compatible with AudioRacks AR2412,
AR84, AB168
Types
Peak Manual, RMS Manual, SlowOpto,
PunchBag
Compatible with ME personal mixing
system
System
Measured balanced XLR in to XLR out,
0dB gain, 0dBu input
Mix Processing
Dynamic Range
112 dB
Channel Direct Out to
USB
Follow Fader, follow Mute (global
options)
Frequency Response
+0/-0.5dB 20Hz to 20kHz
Source select (global)
Post-Preamp, Pre-EQ, Post-EQ, PostDelay
Headroom
+18dB
Internal operating Level
0dBu
Insert
Assign FX into Mix channels
dBFS Alignment
+18dBu = 0dBFS (+22dBu at XLR
output)
Delay
Up to 170ms
Meter Calibration
0dB meter = -18dBFS (+4dBu at XLR
out)
Meter Peak indication
-3dBFS (+19dBu at XLR out), multi-point
sensing
GEQ
Constant 1/3 oct, 28 bands 31Hz-16kHz,
+/-12dB Gain
Meter Signal indication
-48dBFS (-26dBu at XLR out)
Mixer Specification
Qu-Pac Technical Datasheet 5 Allen & Heath Ltd
Meter Type
Fast (peak) response
PEQ
4-Band fully parametric, 20-20kHz, +/15dB
Band 1
Selectable LF Shelving (Baxandall), Bell
Sampling Rate
48kHz +/-100PPM
Band 2, Band 3
Bell
ADC, DAC
24-bit Delta-Sigma
Band 4
Selectable HF Shelving (Baxandall), Bell
Latency
1.2 ms (local XLR in to XLR out)
Bell Width
Non-constant Q, variable, 1.5 to 1/9th
octave
0.7 ms (local XLR in to AES out)
Compressor
Self-key Sidechain
Operating Temperature Range
0 deg C to 35 deg C (32 deg F to 95
deg F)
Threshold / Ratio
-46dBu to 18dBu / 1:1 to infinity
Mains Power
100-240V AC, 50/60Hz
Attack / Release
300us – 300ms / 100ms - 2s
Maximum Power Consumption
150W
Knee
Soft/Hard
Types
Peak Manual, RMS Manual, SlowOpto,
PunchBag
USB Audio
Qu-Drive
USB A
Stereo Record
2 channel, WAV, 48kHz, 24-bit,
patchable
FX
Stereo Playback
2 channel, WAV, 44.1 or 48kHz, 16 or
24-bit, to ST3
Internal FX
4x RackFX engine, Send>Return or
Inserted
Multitrack Record
18 channel, WAV, 48kHz, 24-bit,
patchable
Multitrack Playback
18 channel, WAV, 48kHz, 24-bit
Audio Tools
Types
Reverbs, Delays, Gated Reverb, ADT
USB Audio Streaming
USB B, Core Audio compliant
Chorus, Symphonic Chorus, Phaser,
Flanger
Send (upstream)
32 channel, WAV, 48kHz, 24-bit
4 dedicated Stereo FX
returns
Fader, Pan, Mute, Routing to Mix/LR, 4Band PEQ
Return (downstream)
32 channel, WAV, 48kHz, 24-bit
PAFL
PFL or stereo in-place AFL, 0 to -24dB
Trim, 85ms Delay
Dimensions & Weights
Talkback
Assignable to any mix, 12dB/oct HPF
Width x Depth x Height
Signal Generator
Assignable to any mix, Sine /
White/Pink/Band-pass Noise
Desk mounted
440 x 174 x 181 mm (17.3" x 6.9" x 7.1")
RTA
31-Bands 1/3 octave 20-20kHz, follows
PAFL source
Rack mounted
483 x 174 x 177 mm (19" x 18.6" x 7")
4U
Packed in shipping box
620 x 310 x 310 mm (24.4" x 12.2" x
12.2")
Unpacked weight
6.6 kg (14.5 lbs)
Qu-Pac Technical Datasheet 6 Allen & Heath Ltd
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