QSC CX-Q 4K8 Eight-channel Network Amplifier for the Q-SYS Ecosystem
Q-SYS CX-Q 4K8 8-Channel Network Power Amplifier | 4000W High-Efficiency Power and Flexible AV System Integration for Demanding Commercial Environments The Q-SYS CX-Q 4K8 network amplifier delivers unmatched flexibility and performance for professional AV installations requiring scalable, high-power solutions. Engineered for native integration into the Q-SYS Ecosystem, this 8-channel amplifier offers up to 4000 watts of total output power with advanced features such as FlexAmp™ and FAST (Flexible Amplifier Summing Technology™) to meet diverse speaker load requirements across commercial AV environments. Designed on the trusted PL380 PowerLight™ platform, the CX-Q 4K8 features a 5th-generation Class-D hybrid powertrain and universal switchmode power supply to ensure high efficiency and premium audio performance—whether deployed in low impedance or 70V/100V distributed audio systems. Key Features Q-SYS Native Integration: Simplified drag-and-drop configuration through Q-SYS Designer Software for complete control, routing, and monitoring. Flexible Power Distribution: FlexAmp™ and FAST technologies allow dynamic channel pairing and power summing across multiple output configurations. Eight Input Channels: Mic/line inputs with +12V phantom power support multiple signal sources within your Q-SYS networked AV system. Comprehensive Protection: Built-in amplifier and load protection circuitry safeguards against short circuit, over-voltage, RF, DC faults, and thermal issues. Efficient Power Supply: PowerLight universal switchmode PSU with power factor correction (PFC) maximizes efficiency while minimizing AC draw. Third-Party Integration Ready: Eight bi-directional GPIO connections for automation and control in integrated AV control environments. Touch-Proof Connectors: Euroblock input/output for secure and reliable professional installations. Energy-Saving Operation: Automatic standby and low-power modes reduce energy usage without compromising system responsiveness or sound quality. Use Case Applications Ideal for powering high-demand AV zones across: Boardrooms Conference rooms Government facilities Houses of worship Commercial meeting spaces Multi-purpose rooms All-hands rooms Education and training facilities Auditoriums and performance venues Technical Specifications (CX-Q 4K8) Power Output: Up to 1000 W per channel (Low-Z, 70V, 100V), with advanced summing up to 4000 W total Frequency Response: 20 Hz – 20 kHz ±0.3 dB Typical Distortion: 8Ω: 0.02 – 0.05% 4Ω: 0.04 – 0.1% Signal-to-Noise Ratio: >101 dB (unweighted), >104 dB (weighted) Input Impedance: >8kΩ balanced, >4kΩ unbalanced Gain: 35 dB (1.2V setting) Damping Factor: >100 Input Connectors: 3-pin Euroblock and Q-LAN (depending on model) Output Connectors: 8-pin Euroblock Dimensions (H×W×D): 3.5 × 19 × 16 in / 89 × 482 × 406 mm Weight: Net: 25 lbs (11.3 kg); Shipping: 29 lbs (13.2 kg) Certifications: UL, CE, RoHS/WEEE, FCC Class B Competitive Advantages Over Market Alternatives True Q-SYS Native Compatibility: Unlike third-party amplifiers requiring external control modules, the CX-Q 4K8 seamlessly integrates with Q-SYS for centralized control and monitoring. Dynamic Power Allocation: FlexAmp™ and FAST technologies give integrators freedom to reconfigure power across channels to adapt to real-world speaker deployments. Built-in Mic/Line Inputs: Provides additional signal input flexibility directly from the amplifier—often missing in other networked amplifiers. Robust Protection Suite: Offers full-range circuitry for thermal, electrical, and mechanical protection, exceeding typical protection standards in competing models. Low Power Consumption in Idle States: Optimized for energy-conscious installations without sacrificing readiness. Comparison Table – Q-SYS CX-Q 4K8 vs. Industry Standard Feature Q-SYS CX-Q 4K8 Competitor Class Native Q-SYS integration ✔ Full drag-and-drop configuration ✖ Requires middleware or third-party drivers Power allocation ✔ FlexAmp + FAST for flexible per-channel deployment ✖ Fixed or limited pairing modes Mic/Line input support ✔ 8 inputs with phantom power ✖ Often requires separate input modules Power supply efficiency ✔ PowerLight PSU with PFC ✖ Basic switchmode PSU Protection systems ✔ Advanced multi-layered (RF, thermal, inrush) ✖ Basic thermal + overcurrent only Energy-saving modes ✔ Auto-standby & minimal AC draw ✖ Typically unavailable or manual GPIO integration ✔ 8 bi-directional ports ✖ Limited or not included Downloads Spec Sheet User Manual