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 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.
Specification
| GXD 8 | |
| 8Ω dynamic, both channels driven | 1500 watts per channel |
| 4Ω dynamic, both channels driven | 2250 watts per channel |
| 8Ω continuous, both channels driven | 800 watts per channel |
| 4Ω continuous, both channels driven | 1200 watts per channel |
| Distortion (typical) | < 1% THD |
| 1 kHz at full rated power | |
| Signal to Noise | 100 dB |
| (A weighted, 20 Hz–20 kHz) | |
| Input Sensitivity | 1.2 Vrms, 3.9 Vrms |
| Maximum Voltage Gain | 36.5 dB |
| Output Circuitry | Class D |
| Power Requirements | 1/8 power at 4Ω |
| - 100 V AC | 6.2 A |
| - 120 V AC | 5.6 A |
| - 230 V AC | 3.2 A |
| Frequency Response | +0.7 dB, -0.8 dB |
| (20 Hz–20 kHz) | |
| Dynamic Headroom (4Ω) | 2.73 dB |
| Damping Factor (8Ω) | 100 |
| Input Impedance | 20 kΩ (balanced), 10 kΩ (unbalanced) |
| Maximum Input Level | +23.5 dBu |
| Input Connectors | 3-pin XLR/F / 1/4-inch TRS, balanced |
| (each channel) | |
| Output Connectors | NL4, binding posts |
| (each channel) | 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 | |
| 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 | 6 kg / 13.2 lb |
| Shipping Weight | 7.9 kg / 17.4 lb |
| Agency Approvals | UL, CE, RoHS/WEEE compliant |
| Carton and Contents | Power cable and quick start guide |