Description
QSC GXD8 Power Amplifier Features
- 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 in 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 parametric 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
- A 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.
| SPECIFICATIONS | GXD 4 | GXD 8 | ||||
| Output power per channel | ||||||
| 8Ω dynamic, both channels driven | 600 W | 1500 W | ||||
| 4Ω dynamic, both channels driven | 800 W | 2250 W | ||||
| 8Ω continuous, both channels driven | 400 W | 800 W | ||||
| 4Ω continuous, both channels driven | 600 W | 1200 W | ||||
| 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 | |||||
| Maximum Voltage Gain | 33.5 dB | 36.5 dB | ||||
| Output Circuitry | Class D | |||||
| Power Requirements | 1/8 power at 4Ω | |||||
| – 100 V AC | 3.4 A | 6.2 A | ||||
| – 120 V AC | 2.9 A | 5.6 A | ||||
| – 230 V AC | 1.6 A | 3.2 A | ||||
| Frequency Response (20 Hz–20 kHz) | +0.7 dB, -0.8 dB | |||||
| Dynamic Headroom (4Ω) | 1.25 dB | 2.73 dB | ||||
| Damping Factor (8Ω) | 100 | |||||
| Input Impedance | 20 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 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 A 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. | |||||
| 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 | 6 kg / 13.2 lb | ||||
| Shipping Weight | 7 kg / 15.4 lb | 7.9 kg / 17.4 lb | ||||
| Agency Approvals | UL, CE, RoHS/WEEE compliant | |||||
| Carton and Contents | Power cable and quick start guide | |||||
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