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QSC Power Amplifier GXD4

QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
QSC Power Amplifier GXD4
  • Stock: In Stock
  • Brand: QSC Audio
  • Model: GXD4
  • Weight: 5.10kg
  • Dimensions: 259.00mm x 483.00mm x 89.00mm
Products Sold: 0
Product Views: 624
Ex Tax: RM0.00
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The GXD Series amplifiers are ideal for portable sound reinforcement applications and installations with demanding DSP requirements and flexibility at a cost effective price. This high performance line consists of two amplifiers, the GXD4 and GXD8, each providing enormous Class-D power in a lightweight and efficient package.  The universal switchmode power supply helps reduce the weight, increase efficiency, and ensures rock-solid continued operation even with poor power conditions.  The addition of on-board DSP processing with an easy-to-use interface offers powerful tools like Crossover and EQ filters, Delay, and Power Limiting that allow the user to configure the amplifier and maximize the performance of their loudspeakers.   The GXD Series amplifiers are engineered to meet any demanding application and provide excellent power and legendary QSC reliability, in an efficient, lightweight, and flexible package; bottom line, the GXD amplifiers provide outstanding value!

E Series Entertainment System DSP Tunings are now available for GXD processing amplifiers.


  • 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 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 and low-pass filters, 4-band parameteric EQ, limiting, and delay.
  • E Series Entertainment System DSP Tunings are now available for GXD processing amplifiers:

             - Visit the GXD Firmware Updater to download and update

  • Large LCD display simplifies amplifier setup and indicates amp status.
  • Inputs: Parallel XLR and 1/4-inch 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.

8Ω dynamic, both channels driven600 watts per channel1500 watts per channel
4Ω dynamic, both channels driven800 watts per channel2250 watts per channel
8Ω continuous, both channels driven400 watts per channel800 watts per channel
4Ω continuous, both channels driven600 watts per channel1200 watts per channel
Distortion (typical)
1 kHz at full rated power
< 1% THD 
Signal to Noise
(A weighted, 20 Hz–20 kHz)
100 dB 
Input Sensitivity1.2 Vrms, 3.9 Vrms 
Maximum Voltage Gain33.5 dB36.5 dB
Output CircuitryClass D
Power Requirements1/8 power at 4Ω
- 100 V AC3.4 A6.2 A
- 120 V AC2.9 A5.6 A
- 230 V AC1.6 A3.2 A
Frequency Response
(20 Hz–20 kHz)
+0.7 dB, -0.8 dB
Dynamic Headroom (4Ω)1.25 dB2.73 dB
Damping Factor (8Ω)100
Input Impedance20 kΩ (balanced), 10 kΩ (unbalanced)
Maximum Input Level+23.5 dBu
Input Connectors
(each channel)
3-pin XLR/F / 1/4-inch 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 ProtectionShort circuit, open circuit, thermal, RF protection
Load protected against DC faults
Front Panel Controls and Indicators2 × 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-inch × 1.0-inch, 256 × 128 pixel LCD
DSP FunctionsHigh-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, agressiveness, and impedance selection
Delay 50 msec max.
Product Dimensions (H×W×D)89 × 483 × 259 mm
3.5 (2 RU) × 19 × 10.2 in
Carton Dimensions (H×W×D)600 × 370 × 153 mm
23.6 × 14.6 × 6 in
Net Weight5.1 kg / 11.3 lb6 kg / 13.2 lb
Shipping Weight7 kg / 15.4 lb7.9 kg / 17.4 lb
Agency ApprovalsUL, CE, RoHS/WEEE compliant
Carton and ContentsPower cable and quick start guide


All specifications are subject to change without notice.

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