QSC GXD Series GXD4 Power Amplifier

The QSC GXD Series GXD4 Power Amplifier is complete with high peak output power with up to 1600 watts. 

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Regular Price $599.00 Special Price $499.00

The QSC GXD Series GXD4 Power Amplifier is complete with high peak output power with up to 1600 watts.  With it's large LCD display, it simplifies amplifier setup, indicates amp status, signal presence, input overload and amplifier clipping.  There is also an extensive and powerful processor built in to match power levels of the most popular loudspeakers.

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Availability Ready to Ship
Manufacturer QSC
  • High peak output power of 1600 Watts
  • Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4 Ohm and 8 Ohm 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.
  • Precision rotary encoders for gain and DSP parameter control.
  • Inputs:  Parallel XLR and 1/4” TRS connectors for compatibility with any source while providing convenient loop-thru capability.
  • 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.
Technical Specifications


  • Stereo Mode - Watts Per Channel:
    • 8 Ohm Peak, Both Channels Driven:  600 Watts
    • 4 Ohm Peak, Both Channels Driven:  800 Watts
    • 8 Ohm Continuous, Both Channels Driven:  400 Watts
    • 4 Ohm Continuous, Both Channels Driven:  600 Watts
  • Distortion (typical, 1 kHz at full rated power): < 1% THD
  • Signal-to-Noise Ratio (A-weighted, 20 Hz - 20kHz):  100 dB
  • Input Sensitivity:  1.2 Vrms, 3.9 Vrms
  • Voltage Gain (8 Ohms):  33.5 dB
  • Output Circuitry:  Class D
  • Power Requirements - 1/8 Power at 4 Ohms:
    • 100 VAC:  3.4 Amps
    • 120 VAC:  2.9 Amps
    • 230 VAC:  1.6 Amps
  • Frequency Response:  20 Hz - 20 kHz, +0.7 dB,-0.8 dB
  • Dynamic Headroom (4 Ohms):  1.25 dB
  • Damping Factor:  100
  • Input Impedance: 
  • 20 kOhms (balanced)
  • 10 kOhms(unbalanced)
  • Maximum Input Level:  +23.5 dBu
  • Input Connectors (each channel):  3-pin XLRF /1/4" TRS, balanced
  • Output Connectors (each channel):  NL4 (Channel 1- 1+/-, Channel 2 - 2+/-), binding posts
  • Amplifier and Load Protection: 
    • Short circuit
    • Open circuit
    • Thermal
    • RF protection
    • Load protected against DC faults
  • Front Panel Controls and Indicators:
    • 2x Rotary Encoders
    • 3x Operational Buttons (HOME, ENTER, EXIT)
    • 2x Green Signal LEDs, indicates signal presence
    • 2x 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 panel
  • DSP Functions:
    • High 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, Aggressiveness, and Impedance selection
    • Delay 50 msec max.
  • Agency Approvals:  UL, CE, RoHS/WEEE Compliant
  • Carton and Contents:  Power cable and quick start guide
Width: 19 in
Depth: 10.2 in
Height: 3.5 in
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