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QSC GXD 4 Professional Power Amplifier 

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Lightweight, powerful and affordable are the chief defining characteristics of the QSC GXD series amplifiers. The GXD 4 is sure to become a favorite ...Click To Read More About This Product

Available 06-09-2017

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New addition to the QSC power amp line.

Lightweight, powerful and affordable are the chief defining characteristics of the QSC GXD series amplifiers. The GXD 4 is sure to become a favorite with bands, DJs and sound reinforcement professionals of all kinds.

  • High peak output power with up to 1600 watts from the GXD 4 and a whopping 4500 Watts from the GXD 8.
  • Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4 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 and low-pass filters, 4-band parameteric EQ, 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' power and impedance.
  • Front panel LEDs indicate signal presence, input overload, and amplifier clipping.

Lots of power, completely reliable. Order today.


GXD 4 Professional Power Amplifier

  • 8 Ohms dynamic, both channels driven: 600 watts
  • 4 Ohms dynamic, both channels driven:: 800 watts
    8 Ohms continuous, both channels driven: 400 watts
    4 Ohms continuous, both channels driven: 600 watts
    Distortion (typical)
    1 kHz at full rated power: < 1% THD:
    Signal to Noise (A weighted, 20 Hz“20 kHz): 100 dB
    Input Sensitivity: 1.2 Vrms
    Maximum Voltage Gain: 33.5 dB
    Output Circuitry: Class D
    Power Requirements: 1/8 power at 4Î
    - 100 V AC: 3.4 A
    - 120 V AC: 2.9 A
    - 230 V AC: 1.6 A
    Frequency Response (20 Hz“20 kHz): +0.7 dB, -0.8 dB
    Dynamic Headroom (4 Ohms): 1.25 dB
    Damping Factor (8 Ohms): 100
    Input Impedance: 20 kÎ (balanced), 10 k Ohms (unbalanced)
    Maximum Input Level: +23.5 dBu
    Input Connectors (each channel): 3-pin XLR/F / 1/4" TRS, balanced
    Output Connectors (each channel): NL4, binding posts
    NL4 pinout:
    Channel A on 1+, 1-; Channel B on 2+, 2-
    Channel B on 1+, 1-
    Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection
    Load protected against DC faults
    Front Panel Controls and Indicators: 2 — Rotary Encoders
    3 — Operational buttons (HOME, ENTER, EXIT)
    2 — Green Signal LEDs indicate signal presence
    2 — Red A/D Clip LEDs indicate input over-drive and/or amplifier current clipping
    Blue Power LED ring indicates AC on
    2.12" — 1.0", 256 — 128 pixel LCD
    DSP Functions: High-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 20 Hz to 4 kHz
    Low-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 60 Hz to 4 kHz
    4-band parametric EQ with variable frequency, gain, and bandwidth
    Peak limiter with power, aggressiveness, and impedance selection
    Delay 50 msec max.
    Dimensions (HWD): 3.5" (2 RU) — 19" — 10.2" (89 mm — 483 mm — 259 mm)
    Weight (Net): 11.3 lb (5.1 kg)
    Weight - Shipping: 15.4 lb (7.0 kg)
    Agency Approvals: UL, CE, RoHS/WEEE compliant
    Carton and Contents: Power cable and quick start guide
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