CX-Q Series network amplifiers combine a legacy of robust power amplifiers, advancements in high-efficiency output devices and native network transport, control and monitoring capabilities of the Q-SYS Ecosystem. CX-Qn 4K4 features four channels, capable of delivering customized power output loading and a total maximum power of up to 4000 W. Low-Z, 70 V or 100 V direct drive are available on all channels.
CX-Q Series
(4-channel)
Four-channel network amplifiers
for the Q-SYS Ecosystem
CX-Q 8K4 | CX-Q 4K4 |
CX-Q 2K4
CX-Q 8K4 | CX-Q 4K4 | CX-Q 2K4
CX-Q Series network amplifiers combine
the QSC legacy of robust power amplifiers,
advancements in high-efficiency output
devices and native network transport, control
and monitoring capabilities of the Q-SYS
Ecosystem.
Native Q-SYS Integration
CX-Q Series amplifiers are fully native
components of the Q-SYS audio, video
and control Ecosystem. Like all Q-SYS
peripherals, CX-Q Series amplifiers offer
simple drag-and-drop integration into your
Q-SYS design, enabling network routing,
advanced processing (including Intrinsic
Correction™ custom voicings for QSC
loudspeakers) and control. This expedites
the installation process and provides superior
system performance far beyond that of thirdparty amplifier solutions.
It also means that the Q-SYS Ecosystem can
manage the fault protection and notification
for these amplifiers. If for any reason an
amplifier goes offline or has a fault, the
Q-SYS system can alert the operator and
ensure the system retains its integrity.
Legacy of Power Redefined
CX-Q Series network amplifiers use a
5th generation high-efficiency, Class-D hybrid
powertrain design built upon the dependable
PL380 PowerLight™ amplifier platform. The
new design offers both high voltage and high
current operation with excellent audio quality
and thermal performance.
Channel Power Flexibility
CX-Q Series network amplifiers combine two
technologies that provide extreme flexibility
in output deployment. FlexAmp™ allows
for asymmetric output channel loading by
drawing from large power reserves and
distributing customized output power levels
per channel. FAST (Flexible Summing
Amplifier Technology™) allows channels to be
combined in bridge mode, parallel mode or
bridge/parallel mode to deliver either higher
voltage loads (up to 200 Vrms output) or
higher current loads (up to 35 A).
Collectively, these technologies decrease
system cost by reducing wasted power and
channels, while ultimately removing the need
to specify multiple amplifiers with different
power ratings in a multi-zone installation.
Each model supports a wide variety of
loudspeaker systems by featuring Low-Z, 70 V
and 100 V direct drive on all channels.
I/O Features
Each amplifier also offers four channels of
mic/line inputs (with +12 V phantom power)
directly on the back of the amplifier that
act as Q-SYS on-ramps in addition to its
amplification duties. Additionally, eight
bi-directional GPIO ports allow for further
control and integration of other third-party
peripherals within Q-SYS.
Power & Space Efficiency
CX-Q Series also features fully active Power
Factor Correction (PFC) which aligns the
supply current waveform with the AC mains
voltage waveform. PFC enables these
amplifiers to draw current from the wall in a
more efficient and controlled manner.
This series also incorporates several energy
conservation and efficiency strategies,
including a unique multi-stage sleep mode
that saves energy when possible without
sacrificing performance.
With four channels of amplification
addressable from the network in just 2RU and
four channels of mic/line inputs, the CX-Q
Series network amplifiers replace equipment
taking up as much as four times the rack
space.
Features
• Seamless Q-SYS Ecosystem
integration with audio transport
and control via standard gigabit
Ethernet protocols and hardware
• Capable of providing up to
8,000 W of power
• Low-Z, 70 V and 100 V direct
drive available on all channels
• Hybrid circuit topology mixing
the robustness of the PL380
PowerLight™
amplifier platform
with new high-voltage, highcurrent output devices
• FlexAmp™ allows for asymmetric
power distribution across
amplifier channels
• Flexible Amplifier Summing
Technology™ optimizes for either
higher voltage loads (up to 200
Vrms output) or high current
loads (up to 35 A)
• PowerLight universal
switchmode power supply
with PFC for highest efficiency;
improved audio performance,
and low weight
• Routable mic/line inputs provide
additional on-ramps into the
Q-SYS Ecosystem
• Touch-proof Euroblock
loudspeaker connections
• Eight configurable, bi-directional
GPIO connections
• Automatic energy saving modes
ensure that the amplifier will
draw the minimum amount of
AC power while still providing
outstanding audio quality
CX-Q Series (4-channel) Specifications
CX-Q 8K4 | CX-Q 4K4 | CX-Q 2K4
4 Independent Channels
A, B, C, D
2 Channels Combined in BTL Bridged
A+B or C+D
Doubles Voltage
2 Channels Combined in Parallel
AB or CD
Doubles Current
3 Channels Combined in Parallel
ABC
Triples Current
4 Channels Combined in Bridged/Parallel
AB+CD
Doubles Current and Voltage
4 Channels Combined in Parallel
ABCD
Quadruples Current
CX-Q 2K4 CX-Q 4K4 CX-Q 8K4
Max Power Max Power Max Power
70 V 700 W 1000 W 1250 W
100 V 700 W 1000 W 1250 W
16 Ω 350 W 500 W 625 W
8 Ω 700 W 1000 W 1250 W
4 Ω 800 W 1500 W 2400 W
2 Ω 600 W 800 W 2750 W
140 V 1500 W 2000 W 2400 W
200 V 1500 W 2000 W 2400 W
8 Ω 1500 W 3000 W 4000 W
4 Ω 1400 W 1700 W 5000 W
2 Ω NR* NR* 3000 W
70 V 1400 W 2000 W 2400 W
100 V 1400 W 2000 W 2400 W
8 Ω 800 W 1000 W 1250 W
4 Ω 1250 W 2000 W 2400 W
2 Ω 1500 W 2500 W 4000 W
8 Ω 800 W 1000 W 1250 W
4 Ω 1250 W 2000 W 2400 W
2 Ω 1500 W 3000 W 4500 W
8 Ω 2500 W 3500 W 4200 W
4 Ω 3000 W 4000 W 7000 W
2 Ω NR* NR* 8000 W
8 Ω 800 W 1000 W 1250 W
4 Ω 1250 W 2000 W 2500 W
2 Ω 1700 W 4000 W 5000 W
1 Ω 2500 W 4000 W 7000 W
NR*: Not Recommended due to excessive current draw
Max Power: 20 ms 1 kHz sine wave burst, single channel driven
CX-Q Series (4-channel) Specifications
4 Channel CX-Q Spec Sheet 3/30/2020
please recycle
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
© 2020 QSC, LLC all rights reserved. QSC, Q-SYS and the QSC logo are registered trademarks of QSC, LLC in the U.S. Patent and Trademark office and other
countries. All other trademarks are the property of their respective owners. Patents may apply or be pending.
CX-Q 2K4 CX-Q 4K4 CX-Q 8K4
Power Supply -
Maximum Power Output 2,000 W 4,000 W 8,000 W
Typical Distortion
8Ω
4Ω
0.02 - 0.05%
0.04 - 0.1%
0.02 - 0.05%
0.04 - 0.1%
0.02 - 0.05%
0.04 - 0.1%
Maximum Distortion
4 Ω - 8 Ω 1.0% 1.0% 1.0%
Frequency Response (8 Ω) 20 Hz - 20 kHz +0.2 dB / -0.7 dB 20 Hz - 20 kHz +0.2 dB / -0.7 dB 20 Hz - 20 kHz +0.2 dB / -0.7 dB
Noise
Unweighted output unmuted
Weighted output muted
>102 dB
>106 dB
>102 dB
>106 dB
>102 dB
>106 dB
Gain (1.2 V setting) 33 dB 35 dB 38 dB
Damping factor >100 >100 >150
Input impedance >8k balanced and >4k unbalanced >8k balanced and >4k unbalanced >8k balanced and >4k unbalanced
Input Sensitivity
Continuously variable: Vrms 1.23 mV to 17.35 V
dBu -56 to 27
dBv -58.2 to 24.8
Vrms 1.23 mV to 17.35 V
dBu -56 to 27
dBv -58.2 to 24.8
Vrms 1.23 mV to 17.35 V
dBu -56 to 27
dBv -58.2 to 24.8
Controls and indicators (front) Power • Channel MUTE buttons • Channel SELECT buttons • Channel Input Signal and CLIP LED Indicators
Channel Output and LIMIT LED meters • NEXT, PREV, ID buttons • Control knob
Controls and indicators (rear) AC Power Disconnect (IEC C-14)
Input connectors
CX-Q 2K4, CX-Q 4K4, CX-Q 8K4 3-pin Euro (green) and Q-LAN Network connectivity
Output connectors 8-pin Euro (green)
Amplifier and load protection Short circuit, open circuit, over current, over voltage, thermal, RF, DC fault shutdown, active inrush limiting, on/off muting
AC power input Universal power supply 100 - 240 VAC, 50 - 60 Hz with active PFC
Dimensions (HWD) 3.5 in x 19 in x 16 in
(89 mm x 482 mm x 406 mm)
3.5 in x 19 in x 16 in
(89 mm x 482 mm x 406 mm)
3.5 in x 19 in x 16 in
(89 mm x 482 mm x 406 mm)
Weight, Net / Shipping 23 lb (10.4 kg) / 27 (12.2 kg) 25 lb (11.3 kg) / 29 lb (13.2 kg) 26 lb (11.8kg) / 30 lb (13.6kg)
Agency approvals UL, CE, RoHS/WEEE compliant, FCC Class B (conducted and radiated emissions)
Carton contents IEC power cord (locking), Euro (green) connectors, quick start guide