QSC CXD 4.2 4-Channel Processing Amplifier

  • $1,840.00


Designed for System Integrators, CXD Series Processing Amplifiers represent a revolutionary advancement in technology and innovation. Featuring Flexible Amplifier Summing Technology™ (FAST), advanced DSP and loudspeaker management, next-generation Class D amplification and an unmatched user experience, CXD provides robust and extraordinarily high fidelity power to drive multiple channels and configurations of loudspeakers with minimal operator complexity. 

The QSC CXD Series represents a revolutionary advancement in amplifier technology and innovation. Designed specifically for the needs of integrators, CXD provides efficient, robust and extraordinarily high fidelity power to drive multiple channels and configurations of loudspeakers while simultaneously deploying sophisticated digital processing -- all with optimal energy and rack space efficiency. The CXD Series consists of three powerful, four-channel amplifiers, each with onboard DSP, and 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 to 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.

With four channels of up to 700 Watts/CH that can be combined in multiple ways, DSP on each channel, and locking Euro style connectors, the CXD4.2 is ideal for installation applications.

  • Flexible Amplifier Summing Technology™ (FAST) drives most any loudspeaker system or configuration by distributing total amplifier power across one, two, three or all four channels.
  • Capable of providing up to 5,000 watts continuous and 8,000 watts peak with 70V or 100V direct drive on each output of the CXD4.3 and CXD4.5, and on bridged output pairs of the CXD4.2.
  • Full function onboard loudspeaker processing DSP with crossover and parametric EQ Filters, limiting and alignment delay eliminate the need for outboard loudspeaker processors.
  • E Series Entertainment System DSP Tunings are now available for CXD processing amplifiers:

    Visit the Amplifier Navigator Software to download and update

  • PowerLight universal switch-mode power supply with PFC for highest efficiency, improved audio performance, and low heat dissipation.
  • Powerful Intrinsic Correction™ processing maximizes the sonic performance of QSC loudspeakers.
  • 20 factory preset configurations that can be modified and stored in the 50 user presets.
  • Integrated front panel with channel select and mute buttons, input and output LED metering, 400×240 LCD, intuitive navigation buttons, LED power button and indicator, and cast aluminum handles.
  • GPIO for additional functionality including a heartbeat output for life-safety supervision.
  • Four Phoenix input connectors, and four Phoenix touch-proof loudspeaker output connectors
Typical distortion 0.01–0.06%
Maximum distortion 1.00%
Frequency response 20 Hz–15 kHz ±0.2 dB

20 Hz–20 kHz +0.2/-0.7 dB

Noise Unweighted Output Unmuted: -101dB

Weighted Output Muted: -109dB

Gain (1.2V setting) 34.0 dB
Damping factor >150
Input impedance >10k ohm, balanced or unbalanced
Maximum rms input level 12.28 V (+24 dBu)(3.9V setting)

3.88 V (+14 dBu)(1.2V setting)

Amplifier and load protection Short circuit, open circuit, thermal, RF protection. on/off muting, DC fault shutdown, active inrush limiting, input current limiting
AC power input Universal Power Supply 100-132/200–240 VAC, 50–60 Hz
Agency approvals UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Carton contents Locking IEC cable, Quick Start Guide, USB cable
Max Continous
4 Independent Channels A, B, C, D
500 W 400 W
700 W 400 W
625 W 325 W
2 Channel BTL Bridged A+B or C+D Doubles Voltage
1200 W 800 W
1500 W 600 W
Not Recommended Not Recommended
2 Channel Parallel AB or CD Doubles Current
500 W 400 W
950 W 800 W
1200 W 800 W
1 Channel Bridged/Parallel AB+CD Doubles Current and Voltage  
1600 W 500 W
2500 W 1600 W
Not Recommended Not Recommended
1 Channel 4CH Parallel ABCD Quadruples Current  
500 W 400 W
1000 W 800 W
1700 W 1600 W

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