QSC CX-Q 2K4 Four-Channel Network Amplifier

The QSC CX-Q 2K4 is a native Q-SYS platform network amplifier delivering up to 2,000 W of total power across four channels. Built on the proven PL380 PowerLight™ Class-D hybrid powertrain, it offers high efficiency, superior thermal performance, and seamless drag-and-drop integration into Q-SYS audio designs. Certified for both Google Meet and Microsoft Teams, it provides network control, monitoring, and protection within a 2 RU form factor.

Featuring FlexAmp™ technology for asymmetric channel loading and FAST™ (Flexible Summing Amplifier Technology) for bridge, parallel, or bridge/parallel configurations, the CX-Q 2K4 ensures optimal power distribution. Each channel supports Low-Z, 70 V, or 100 V direct drive and includes four mic/line inputs with +12 V phantom power, eight GPIO ports, and touch-proof Euroblock outputs.

Key Features

• Platform: Native Q-SYS network integration with gigabit Ethernet control and monitoring
• Powertrain: 5th-generation Class-D hybrid PowerLight™ design for high efficiency and thermal management
• FlexAmp™: Asymmetric per-channel power loading from a 2,000 W power reserve
• FAST™: Bridge/parallel summing modes for up to 200 Vrms or 35 A output – Verified
• Inputs: Four mic/line inputs with +12 V phantom power – Verified
• GPIO: Eight bi-directional ports for third-party integration – Verified
• Protection: Short-circuit, open-circuit, over-current, over-voltage, thermal, RF, DC fault shutdown, and active inrush limiting
• Efficiency: Power Factor Correction (PFC) and multi-stage sleep mode for energy conservation

Technical Specifications

• Dimensions: 3.5 in × 19 in × 16 in (89 × 482 × 406 mm)
• Weight: 23 lb (10.4 kg) net; 27 lb (12.2 kg)
• Total Power Output: 2,000 W max (20 ms, 1 kHz burst); 1,250 W continuous (8 Ω, 20 Hz–20 kHz)
• Per-Channel Power (70 V/100 V): 700 W max, 350 W continuous at 70 V; 700 W max, 400 W continuous at 100 V
• Per-Channel Power (Low-Z, 8 Ω/4 Ω): 700 W/800 W max, 400 W continuous (8 Ω/4 Ω) –
• Distortion: 0.02%–0.05% (8 Ω), 0.04%–0.1% (4 Ω); max 1.0% (4 Ω–8 Ω)
• Frequency Response: 20 Hz–20 kHz, +0.2 dB/–0.7 dB
• Noise: >102 dB (unweighted), >106 dB (weighted, muted)
• Gain: 33 dB (1.2 V setting)
• Input Impedance: >8 kΩ balanced, >4 kΩ unbalanced
• Power Supply: Universal 100–240 VAC, 50–60 Hz with active PFC
• Agency Approvals: UL, CE, RoHS/WEEE, FCC Class B

Installation / Use Cases

• Q-SYS audio installations requiring a native network amplifier with gigabit Ethernet control and monitoring
• Commercial AV systems using a 4-channel amplifier with Low-Z, 70V, and 100V direct drive support
• Meeting room and collaboration spaces requiring Google Meet and Microsoft Teams certified amplification
• Installed audio systems needing FlexAmp asymmetric channel loading from a 2,000W power reserve
• Speaker systems requiring bridge, parallel, or bridge/parallel configurations with FAST technology
• Integrated control systems using four mic/line inputs, +12V phantom power, and eight bi-directional GPIO ports

What's Included

• IEC C13 locking power cord
• Euroblock (green) input and output connectors
• Quick Start Guide