QSC GXD4 Class-D Professional Power Amplifier with DSP, 2 Channels, 400W

QSC GXD4 Power Amplifier

The QSC GXD4 is a robust power amplifier designed for professional PA systems, optimized for speakers with 4 and 8 ohm loads and delivering up to 1600W of peak output power. This amplifier integrates a Class D output stage and a universal power supply, ensuring high performance and efficiency while maintaining a lightweight profile at just 11.3 lbs. The built-in DSP features include High and Low-Pass filters, a 4-band parametric equalizer, signal alignment delay, and RMS/Peak speaker protection limiting.

The GXD4 provides versatile connectivity with parallel XLR and 1/4″ TRS input connectors, as well as professional binding posts and NL4 connectors for mono and bi-amped speaker setups. The unit also incorporates intelligent speaker protection settings and comes equipped with a standard IEC power cord for immediate use.

Key Features

• Up to 1600 W peak output power
• Optimized power levels for 4-ohm and 8-ohm speaker systems
• Class D output stage with universal power supply
• Built-in DSP with High and Low-Pass filters, 4-band PEQ, limiting, and delay
• Large LCD for amplifier setup and status
• Parallel XLR and 1/4″ TRS input connectors
• Professional binding post and NL4 connectors for mono and bi-amp configurations
• Digital Limiting for protection against temperature rise or overdrive
• Adjustable speaker protection settings
• Front panel LEDs for signal presence, input overload, and amplifier clipping

Specifications