The QSC CXD-Q Series represents a revolutionary advancement in amplifier technology
and innovation, coupled with outstanding
integration capability as part of a Q-SYS
system. Designed specifically for the needs of
integrators, CXD-Q provides efficient, robust
and extraordinarily high fidelity power to drive
multiple channels and configurations of
loudspeakers – all with optimal energy and
rack space efficiency. The CXD-Q Series
consists of three powerful, four-channel amplifiers, each a Q-SYS peripheral enabling audio
routing, processing, and control. Provided
in the amps is the capability to configure and
combine channels in various ways to drive a
wide range of loudspeaker systems including
70V and 100V without the use of transformers.
These amplifiers not only provide the power
and processing make your system perform
better, they offer outstanding efficiency
ensuring that energy costs will be kept to a
minimum over the life of the installation.
Flexible Amplifier Summing
CXD-Q amplifiers feature Flexible Amplifier
Summing Technology™ (FAST) that actively,
two, three or all four outputs. On the CXD4.3Q
and CXD4.5Q, this power can also be used to
drive 70V or 100V speaker lines directly from
any one or all of the four outputs.
This flexibility allows CXD-Q Series amplifiers
to drive (for example) two full-range surface
mounted speakers along with a subwoofer
and one 100V distributed speaker line; or a
high-power subwoofer and a bi-amplified
full-range loudspeaker; three 70V distributed
speaker lines and a low impedance surface
mount speaker line; or a single high-power
channel driving monster subwoofers.
Q-SYS Connectivity
The CXD-Q amplifiers benefit from the
strength of the Q-SYS platform. They are
true Q-SYS peripherals meaning that they
can connect on a Q-LAN Ethernet network
and source and recieve audio signals. In
addition to the four Mic/Line input and output
channels, the CXD-Q amplifiers affer eight
bi-directional Q-SYS GPIO ports for further
interfacing with other equipment. It also
means that when the CXD-Q amps are in a
Q-SYS design the Q-SYS Core manages the
system design and amplifiers. If for any
reason an amplifier goes off-line or has a
fault, the Core can alert the operator and
ensure that system retains its integrity.
Power & Space Efficiency
CXD-Q Series amplifiers use QSC’s next
generation class-D power amp design in combination with a custom power stage utilizing a
new output device. These purpose built MOSFET devices provide high voltage operation
without needing a full bridge output and offer
better audio quality and thermal performance
due to co-location of the semiconductors.
CXD-Q amplifiers benefit from the proven PowerLight power supply, made even
better with Power Factor Correction (PFC)
that aligns the current waveform with the
AC mains voltage waveform. PFC enables
CXD-Q Series amps to draw current from the
wall in a more efficient and controlled manner
resulting in incredible power from a single
standard AC breaker.
The CXD-Q amplifiers also incorporate several energy conservation and efficiency strategies. One such tool is the unique multi-stage
sleep mode that saves energy when possible
without sacrificing performance.
With four channels of Mic/Line input and four
channels of amplification in just 2RU, the
CXD-Q amplifiers replaces equipment taking
up as much as three times the rack-space.
Integration Simplicity
Q-SYS is a complete integrated system that
encompasses everything from the audio input
to the output of the loudspeakers. As part of
a Q-SYS system, the CXD-Q amplifiers are
just some of the many peripherals that can be
intuitively placed in a design and wired into
the system. The centralized design maintains
operational simplicity because not only does it
allow for a “whole system” design philosophy,
but the Q-SYS Core configures and manages
all peripherals to ensure that all elements of
the system are functioning correctly.
With the complete integration facilities provided by Q-SYS, and the power efficiency
provided by the custom MOSFET and FAST,
the CXD-Q amplifiers are perfect for nearly
every installation application.
Features
• Seamless Q-SYS integration
with audio transport and
control via standard Gigabit
Ethernet protocols and
hardware
• Capable of providing up to
5,000 W continuous and
8,000 W peak with 70V /
100V direct drive on the
CXD4.3Q and CXD4.5Q
• Flexible Amplifier Summing
Technology™ (FAST) permits
total amplifier power to be
distributed across one, two,
three or all four channels
• PowerLight universal
switchmode power supply
with PFC for highest effiency,
improved audio performance,
and low weight.
• Mic/Line input Euroblock
connectors and touch-proof
Euroblock loudspeaker
connections.
• Eight bi-directional GPIO
connections that can be
used for analog or digital
inputs or outputs to/from
Q-SYS
• Built-in energy saving modes
ensure that the amplifier will
draw the minimum amount of
AC power while still providing
outstanding audio quality
• Q-SYS technical support is
available 24/7 - worldwide
CXD-Q Series
Multi-Channel Network
Processing Amplifiers
CXD4.2Q | CXD4.3Q
| CXD4.5Q
CXD4.2Q | CXD4.3Q | CXD4.5Q
CXD-Q Series Specifications
4 Independent Channels
A, B, C, D
2 Channels BTL Bridged
A+B or C+D
Doubles Voltage
2 Channels Parallel
AB or CD
Doubles Current
1 Channel 3CH Parallel
ABC
Triples Current
1 Channel Bridged/Parallel
AB+CD
Doubles Current and Voltage
1 Channel 4CH Parallel
ABCD
Quadruples Current
CXD4.2Q CXD4.3Q CXD4.5Q
Peak Peak Peak
70 V N/A 500 W 1000 W
100 V N/A 625 W 1250 W
8Ω 500 W 900 W 1200 W
4Ω 700 W 1400 W 2000 W
2Ω 625 W 1200 W 1600 W
8Ω 1200 W 2400 W 4000 W
4Ω 1500 W NR* NR*
2Ω NR* NR* NR*
8Ω 500 W 1300 W 1250 W
4Ω 950 W 2000 W 2400 W
2Ω 1200 W 2500 W 4000 W
8Ω 500 W 1400 W 1400 W
4Ω 950 W 2400 W 2500 W
2Ω 1800 W 3500 W 4500 W
8Ω 1600 W 3500 W 4500 W
4Ω 2500 W 5000 W 7500 W
2Ω NR* NR* NR*
8Ω 500 W 1400 W 1600 W
4Ω 1000 W 3000 W 3000 W
2Ω 1700 W 5000 W 5300 W
NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration for the load and channel count
CXD-Q Series Specifications
CXD4.2Q CXD4.3Q CXD4.5Q
Typical Distortion
8Ω
4Ω
0.01 - 0.03%
0.03 - 0.06%
0.01 - 0.03%
0.03 - 0.06%
0.01 - 0.03%
0.03 - 0.06%
Maximum Distortion
4Ω - 8Ω 1.0% 1.0% 1.0%
Frequency response (8Ω)
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
Noise
Unweighted Output Unmuted
Weighted Output Muted
-101 dB
-109 dB
-101 dB
-109 dB
-101 dB
-109 dB
Gain (1.2V setting) 34.0 dB 38.4 dB 38.4 dB
Damping factor >150 >150 >150
Input impedance >10k, balanced or unbalanced >10k, balanced or unbalanced >10k, balanced or unbalanced
Input Sensitivity
Continuously Variable: Vrms 1.23mV to 17.35V
dBu -56 to 27
dBv -58.2 to 24.8
Vrms 1.23mV to 17.35V
dBu -56 to 27
dBv -58.2 to 24.8
Vrms 1.23mV to 17.35V
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
Input connectors 3-pin Phoenix
Output connectors 8-pin Phoenix Speaker
Amplifier and load protection Short circuit, open circuit, thermal, RF protection. On/Off muting, DC fault shutdown, active inrush limiting
AC Power Input Universal Power Supply 100 - 240 VAC, 50 - 60 Hz
Dimensions (HWD) 3.5” x 19” x 12”
(89mm x 482mm x 305mm)
3.5” x 19” x 16”
(89mm x 482mm x 406mm)
3.5” x 19” x 16”
(89mm x 482mm x 406mm)
Weight, Net / Shipping 18.5 lb (8.4 kg) / 22 lb (10.0 kg) 21.0 lb (9.5 kg) / 25 lb (11.3 kg) 22.0 lb (10.0 kg) / 26 lb (11.8 kg)
Agency approvals UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Carton contents IEC Cable, Quick Start Guide, Phoenix Connectors
Burst Power- 20 ms 1 kHz sine burst, all channels driven
Continuous Power- EIA 1 kHz 1% THD, all channels driven
CXD4.5Q Spec Sheet 09/19/2016
please recycle
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
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countries. All other trademarks are the property of their respective owners. Patents may apply or be pending.