QSC GXD4 Class-D 2-Channel Power Amplifier with DSP – 400W/ch at 8Ω, 600W/ch at 4Ω, 1600W Total Power (GXD4)

QSC GXD4 Class-D 2-Channel Power Amplifier with DSP

(Professional DSP Amplifier – 400W/ch @ 8Ω, 600W/ch @ 4Ω, 1600W Total Power)

The QSC GXD4 is a professional-grade 2-channel Class-D power amplifier with built-in DSP, designed for live sound reinforcement, installed systems, DJs, and touring applications. Combining high-efficiency amplification with intelligent digital processing, it delivers clean, reliable power with advanced speaker protection and system tuning capabilities.

With up to 400W per channel at 8Ω and 600W per channel at 4Ω, the GXD4 provides strong, stable output for passive loudspeakers and monitor systems. Its integrated DSP engine offers precision control over EQ, crossover, and limiting, allowing users to optimize system performance and protect connected speakers.

Engineered for portability and reliability, the GXD4 features a lightweight rack-mount design and intuitive front-panel interface, making it ideal for both mobile and installed professional audio systems.

Key Features

• 2-channel Class-D amplifier with integrated DSP processing
• 400W per channel @ 8Ω / 600W per channel @ 4Ω
• 1600W total peak power output for demanding audio applications
• Built-in DSP for EQ, crossover, and speaker protection
• Selectable crossover modes for sub/satellite configurations
• Front-panel LCD for easy monitoring and setup
• Precision limiting system to prevent speaker damage
• Flexible input connectivity (XLR and TRS balanced inputs)
• Speakon and binding post outputs for speaker connection
• Lightweight rack-mountable chassis for touring and installation use
• Quiet, efficient cooling system for reliable operation
• Ideal for live sound, DJs, bands, and installed PA systems