QSC GXD4 is part of the E Series Entertainment Systems of QSC. It has a high peak output power with up to 1600 watts. It has contemporary styling, multiple routing options, lightweight, digital signal processing and advanced protection circuitry. Optimised for use with 8-ohm and 4-ohm loudspeaker loads. Precision rotary encoders for gain and DSP parameter control are added.
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QSC GXD4 is a professional power amplifier that is designed to maximise QSC E Series loudspeakers with a high peak output power with up to 1600 Watts.
Its prominent feature is DSP or the Digital Signal Processing section that includes High and Low-Pass filters (24dB LR), 4-band parametric equaliser, signal alignment delay, and RMS/Peak speaker protection limiting. There are twenty presets for selected typical systems that provide generic “starting points”.
Also, GXD amplifiers come pre-loaded with QSC E Series loudspeaker tunings, enabling a simple connect and play system that maximizes
the performance of the system.
Also features an extensive and powerful loudspeaker processing built in that includes High & Low-Pass filters, 4-band PEQ, Limiting, and Delay.
Aside from the Digital Limiter that automatically protects the amplifier from damage due to temperature rise or overdrive. It also has a Class-D output stage with a universal power supply for high performance and efficiency.
Front panel LEDs indicate signal presence, input overload, and amplifier clipping. And, it also has adjustable speaker protection to match your loudspeaker’s power and impedance.
Its output features include a professional binding post and NL4 connectors (compatible with NL2) provide for mono and bi-amp speaker connections.
Meanwhile, its input features include parallel XLR and 1/4” TRS connectors for compatibility with any source while providing convenient loop-thru capability.
Furthermore, it also has a flexibility feature to create, store and recall up to 20-user presets for any application.
|8Ω dynamic, both channels driven||600 watts per channel|
|4Ω dynamic, both channels driven||800 watts per channel|
|8Ω continuous, both channels driven||400 watts per channel|
|4Ω continuous, both channels driven||600 watts per channel|
1 kHz at full rated power
|< 1% THD|
|Signal to Noise|
(A weighted, 20 Hz–20 kHz)
|Input Sensitivity||1.2 Vrms, 3.9 Vrms|
|Maximum Voltage Gain||33.5 dB|
|Output Circuitry||Class D|
|Power Requirements||1/8 power at 4Ω|
|- 100 V AC||3.4 A|
|- 120 V AC||2.9 A|
|- 230 V AC||1.6 A|
(20 Hz–20 kHz)
|+0.7 dB, -0.8 dB|
|Dynamic Headroom (4Ω)||1.25 dB|
|Damping Factor (8Ω)||100|
|Input Impedance||20 kΩ (balanced), 10 kΩ (unbalanced)|
|Maximum Input Level||+23.5 dBu|
|3-pin XLR/F / 1/4-inch TRS, balanced|
|NL4, binding posts|
• 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-inch × 1.0-inch, 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, 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 Weight||5.1 kg / 11.3 lb|
|Shipping Weight||7 kg / 15.4 lb|
|Agency Approvals||UL, CE, RoHS/WEEE compliant|
|Carton and Contents||Power cable and quick start guide|
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