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QSC CXD4.3Q CXD-Q Series Multi-Channel Network Processing Amplifiers

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QSC CXD4.3Q CXD-Q Series Multi-Channel Network Processing Amplifiers

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Description

Built for system integrators, the QSC CXD4.3 Processing Amplifier provides multi-channel amplification with built-in DSP and enough power to drive a wide variety of speaker systems with optimal energy efficiency. Utilizing QSC's Flexible Amplifier Summing Technology (FAST), the CXD4.3's power can be distributed across one to four outputs, as well as drive 70V/100V speaker outputs from all four channels. The 3rd generation Class-D power amplifier design employs PowerLight technology with Power Factor Correction (PFC), which aligns the current waveform with the AC mains voltage waveform. PFC enables the CXD Series amplifiers to draw current from the wall in a more efficient and controlled manner resulting in very high power from a single standard AC breaker. Additionally, the CXD Series amplifiers offer multi-stage sleep modes saving energy when possible without sacrificing performance. The result is a remarkably powerful and flexible platform that offers very high efficiency. The integrated DSP provides everything you need to optimize a speaker system including four channels of crossover filters, 5-band parametric EQ/Low-shelf/High-shelf, alignment delay, and dynamics processing. Integration of processing and amplification means that the DSP knows exactly what the amplifier is doing so dynamics processing can be far more accurate and effective. This approach employs both RMS and Peak Limiters that allow the amplifier and loudspeaker to produce more output without being pushed to distortion or destruction. Additionally, when using QSC loudspeakers, the CXD amplifiers provide Intrinsic Correction, a combination of filtering, limiting, and loudspeaker know-how, which compensates for the non-linearity in horn and driver design resulting in remarkable performance. The CXD4.3 includes 20 configuration preset templates, recommended for popular loudspeakers. A setup wizard helps select the right preset, make adjustments, and save to one of 50 user preset memories. Whether using the dedicated front-panel user interface featuring a 400 x 240 display, rotary encoder, and navigation buttons, or the Amplifier Navigator software on a PC or Mac, the CXD amplifiers are an ideal amplifier/processing platform for installations. The QSC CXD4.3 ships with a power cord, USB cable, and a set of Euro-style connector plugs. Read more

Features

  • Flexible Amplifier Summing Technology
  • Drive Total Amp Power Across 1 to 4 Ch.
  • 70V & 100V Output
  • Peak Output: 5000W
  • Integrated Speaker Processor DSP

Business Financing Options Avaiable

Built for system integrators, the QSC CXD4.3 Processing Amplifier provides multi-channel amplification with built-in DSP and enough power to drive a wide variety of speaker systems with optimal energy efficiency. Utilizing QSC's Flexible Amplifier Summing Technology (FAST), the CXD4.3's power can be distributed across one to four outputs, as well as drive 70V/100V speaker outputs from all four channels. The 3rd generation Class-D power amplifier design employs PowerLight technology with Power Factor Correction (PFC), which aligns the current waveform with the AC mains voltage waveform. PFC enables the CXD Series amplifiers to draw current from the wall in a more efficient and controlled manner resulting in very high power from a single standard AC breaker. Additionally, the CXD Series amplifiers offer multi-stage sleep modes saving energy when possible without sacrificing performance. The result is a remarkably powerful and flexible platform that offers very high efficiency. The integrated DSP provides everything you need to optimize a speaker system including four channels of crossover filters, 5-band parametric EQ/Low-shelf/High-shelf, alignment delay, and dynamics processing. Integration of processing and amplification means that the DSP knows exactly what the amplifier is doing so dynamics processing can be far more accurate and effective. This approach employs both RMS and Peak Limiters that allow the amplifier and loudspeaker to produce more output without being pushed to distortion or destruction. Additionally, when using QSC loudspeakers, the CXD amplifiers provide Intrinsic Correction, a combination of filtering, limiting, and loudspeaker know-how, which compensates for the non-linearity in horn and driver design resulting in remarkable performance. The CXD4.3 includes 20 configuration preset templates, recommended for popular loudspeakers. A setup wizard helps select the right preset, make adjustments, and save to one of 50 user preset memories. Whether using the dedicated front-panel user interface featuring a 400 x 240 display, rotary encoder, and navigation buttons, or the Amplifier Navigator software on a PC or Mac, the CXD amplifiers are an ideal amplifier/processing platform for installations. The QSC CXD4.3 ships with a power cord, USB cable, and a set of Euro-style connector plugs. Read more

Features

  • Flexible Amplifier Summing Technology
  • Drive Total Amp Power Across 1 to 4 Ch.
  • 70V & 100V Output
  • Peak Output: 5000W
  • Integrated Speaker Processor DSP

About the QSC CXD4.3Q CXD-Q Series Multi-Channel Network Processing Amplifiers

The QSC CXD4.3Q is a networkable, multi-channel amplifier that integrates high-efficiency Class D power amplification with comprehensive DSP (Digital Signal Processing) and audio networking in a single 2U rackmount unit. Part of the CXD-Q series, it is specifically engineered for fixed installation applications such as corporate facilities, hospitality venues, performing arts centers, and houses of worship where scalability, control, and sound quality are paramount. This amplifier features four amplifier channels paired with three independently configurable DSP channels, allowing for flexible signal routing and processing such as mixing, equalization, crossover filtering, delay, and dynamics control directly within the amplifier—eliminating the need for external processors in many system designs.

A core strength of the CXD4.3Q is its native integration into the Q-SYS ecosystem. It connects via a standard network cable to a Q-SYS Core processor, becoming a fully managed endpoint that can be remotely controlled, monitored, and configured from the central Q-SYS Designer software. This enables system-wide audio routing, real-time status monitoring of temperature and load impedance, and centralized failover strategies. The amplifier utilizes QSC's patented "DriveCore" amplifier technology, which provides high power density and efficiency with low heat output and weight. Each channel supports a wide range of loads, including low-impedance and 70V/100V constant-voltage operation, offering maximum flexibility for driving different loudspeaker types within a single system.

Built for reliability in 24/7 operation, the CXD4.3Q includes dual redundant network ports and power supply failover capabilities. Its combination of networked control, onboard DSP, and robust amplification makes it an ideal building block for modern, software-defined audio systems. For system integrators designing scalable, manageable, and high-performance installed sound solutions, the QSC CXD4.3Q provides a powerful, all-in-one component that simplifies infrastructure, enhances control, and delivers pristine audio quality.

Key Features

  • Flexible Amplifier Summing Technology
  • Drive Total Amp Power Across 1 to 4 Ch.
  • 70V & 100V Output
  • Peak Output: 5000W
  • Integrated Speaker Processor DSP

QSC CXD4.3Q CXD-Q Series Multi-Channel Network Processing Amplifiers Specs

Amplifier & DSP
Amplifier Channels
4
DSP Channels
3 (Independently Configurable)
Amplifier Technology
DriveCore Class D
Power per Ch (4Ω)
300 W
Processing & Control
DSP Functions
EQ, Crossover, Delay, Limiter
Control Ecosystem
Q-SYS Integrated
Network Control
Dual Gigabit Ethernet Ports
Load Compatibility
Low Impedance
4Ω, 8Ω
Constant Voltage
70V, 100V
Reliability Features
Network Redundancy
Dual Ports with Failover
Power Supply
Internal with Fault Tolerance
Physical
Rack Units
2U
Cooling
Variable Speed Fan

Key Features

  • Flexible Amplifier Summing Technology
  • Drive Total Amp Power Across 1 to 4 Ch.
  • 70V & 100V Output
  • Peak Output: 5000W
  • Integrated Speaker Processor DSP

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