QSC GXD4 2CH AMP 400W/CH 8 OHMS LIGHT WEIGHT
PRODUCT SPEC SHEET
• 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 & 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.
| GXD Details |
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| SPECIFICATIONS |
GXD 4 |
GXD 8 |
| Stereo Mode - Watts per channel |
|
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| 8Ω dynamic, both channels driven |
600 Watts |
1500 Watts |
| 4Ω dynamic, both channels driven |
800 Watts |
2250 Watts |
| 8Ω continuous, both channels driven |
400 Watts |
800 Watts |
| 4Ω continuous, both channels driven |
600 Watts |
1200 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, 3.9 Vrms |
|
| Voltage Gain (8Ω) |
33.5 dB |
33.5 dB |
| Output Circuitry |
Class D |
Class D |
| Power Requirements: 1/8 power at 4Ω |
| - 100 Vac |
3.4 Amps |
6.2 Amps |
| - 120 Vac |
2.9 Amps |
5.6 Amps |
| - 230 Vac |
1.6 Amps |
3.2 Amps |
| Frequency Response (20 Hz – 20 kHz) |
+0.7 dB, -0.8 dB |
| Dynamic Headroom (4Ω) |
1.25 dB |
2.73 dB |
| Damping Factor |
100 |
| 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 Protection |
Short circuit, open circuit, thermal, RF protection
Load protected against DC faults |
| Front Panel Controls and Indicators |
2 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 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, 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) |
11.3 lb (5.1 kg) |
13.2 lb (6.0 kg) |
| Weight - Shipping |
15.4 lb (7.0 kg) |
17.3 lb (7.8 kg) |
| Agency Approvals |
UL, CE, RoHS/WEEE compliant |
| Carton and Contents |
Power cable, and quick start guide |
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 WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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