QSC GXD8 Professional DSP Power Amplifier

SKU #: GXD8
$1,199.99
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Expected June 30, 2025

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The GXD Series amplifiers from QSC are ideal for professional entertainers who require unmatched performance at an affordable price point. These amplifiers provide enormous Class-D power in a lightweight package, and flexibility due to their easy-to-use DSP. With their high output Class-D power and DSP, the GXD amplifiers from QSC are an outstanding value.

QSC GXD8 DSP Power Amplifier Features:

  • High peak output power with up to a whopping 4500 Watts from the GXD 8.
  • Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4Ω and 8Ω speaker systems.
  • Class-D output stage with a universal power supply for high performance and efficiency.
  • Extensive and powerful loudspeaker processing built in. Includes High & Low-Pass filters, 4-band PEQ, Limiting, and Delay.
  • Large LCD display simplifies amplifier setup and indicates amp status.
  • Inputs: Parallel XLR and 1/4" TRS connectors for compatibility with any source while providing convenient loop-thru capability.
  • Precision rotary encoders for gain and DSP parameter control.
  • Outputs: Professional binding post and NL4 connectors (compatible with NL2) provide for mono and bi-amp speaker connections.
  • Digital Limiting automatically protects the amplifier from damage due to temperature rise or overdrive.
  • Adjustable speaker protection to match your loudspeaker's power and impedance.
  • Front panel LEDs indicate signal presence, input overload, and amplifier clipping.

QSC GXD8 Specifications
Stereo Mode - Watts per channel 
8Ω dynamic, both channels driven
1500 Watts
4Ω dynamic, both channels driven2250 Watts
8Ω continuous, both channels driven800 Watts
4Ω continuous, both channels driven1200 Watts
Distortion (typical)
1 kHz at full rated power
 
Signal to Noise (A-weighted, 20 Hz – 20 kHz) 
Input Sensitivity 
Voltage Gain (8Ω)33.5 dB
Output CircuitryClass D
Power Requirements: 1/8 power at 4Ω
- 100 Vac6.2 Amps
- 120 Vac5.6 Amps
- 230 Vac3.2 Amps
Frequency Response (20 Hz – 20 kHz)+0.7 dB, -0.8 dB
Dynamic Headroom (4Ω)2.73 dB
Damping Factor100
Input Impedance (Ω)20k (balanced), 10k (unbalanced)
Maximum Input Level+23.5 dBu
Input Connectors (each channel)3-pin XLR/F / 1/4" TRS, balanced
Output Connectors (each channel)NL4 (Channel 1 - 1+/-, Channel 2 - 2+/-), binding posts
Amplifier and Load ProtectionShort circuit, open circuit, thermal, RF protection
Load protected against DC faults
Front Panel Controls and Indicators2 x Rotary Encoders
3 x Operational buttons (HOME, ENTER, EXIT)
2 x Green Signal LEDs, indicate signal presence
2 x Red A/D Clip LEDs, indicate input over-drive and/or amplifier current clipping
Blue Power LED ring, AC on
2.12" x 1.0", 256 x 128 pixel LCD
DSP FunctionsHigh Pass Filter, 4th order LR, adjustable Frequency 20 Hz to 4 kHz
Low Pass Filter, 4th order LR, adjustable Frequency 60 Hz to 4 kHz
4-band PEQ, with variable Frequency, Gain, and Bandwidth
Peak Limiter, with Power, Agressiveness, and Impedance selection
Delay 50 msec max.
Dimensions (HWD)3.5" (2 RU) x 19" x 10.2" (89 mm x 483 mm x 259 mm)
Weight (Net)13.2 lb (6.0 kg)
Weight - Shipping17.3 lb (7.8 kg)
Agency ApprovalsUL, CE, RoHS/WEEE compliant
Carton and ContentsPower cable, and quick start guide

The QSC GXD 8 Box Includes:
(1) QSC GXD8 Professional Power Amplifier
(1) Power Cable
(1) Quick Start Guide

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