QSC GXD4 Professional 2-Channel Power Amplifier
QSC GXD4 Professional 2-Channel Power Amplifier
The GXD Class-D amplifiers have been engineered for high performance output and optimized for maximum real-world headroom into 4Ω
and 8Ω loudspeaker systems. The power levels of the GXD amplifiers are matched to the most popular loudspeakers:
• GXD 4, per channel – 400 W into 8Ω, and 600 W into 4Ω (1600 W peak)
The Class-D amplifier topology is very efficient, making the GXD amplifiers small and light. In addition the Universal Power Supply used in the
GXD helps to reduce weight. Both amplifiers are 2RU and are only 229 mm (9 inches) deep. The GXD 4 weighs in at 5 kg (11 lbs), the GXD 8 is at
5.9 kg (13 lbs).The GXD amplifiers have an LCD for control and monitoring, with three buttons for menu navigation, and two knobs for adjusting parameters. There are 20 User Presets that can be edited, stored and recalled to match any configuration or system
Each channel has parallel XLR and ¼” TRS connectors for inputs. The outputs are professional NL4 and binding post connectors for mono and bi-amp
speaker connectivity. You can keep your amplifier up-to-date with software updates using the USB connector.
Both amplifiers have complete loudspeaker processing:
• Channel Gain & Polarity
• 4th Order Linkwitz Riley Highpass and Lowpass Filters
• 4-band Parametric EQ
• 50 mSec of Alignment Delay
• QSC Power Limiting
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
- 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.
- 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
- 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 : 3 3.5 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
- Frequency Response (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
- Input Connectors : 3-pin XLR/F / 1/4" TRS, balanced
- Output Connectors: NL4, binding posts
- (each channel) : NL4 pinout:
- Channel A on 1+, 1-; Channel B on 2+, 2-
- 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" × 1.0", 256 × 128 pixel LCD
- DSP Functions: High-pass filter, 4th-order Linkwitz-Riley : a djustable 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.
- Dimensions (HWD) : 3.5" (2 RU) × 19" × 10.2" (89 mm × 483 mm × 259 mm)
- Weight (Net) : 11.3 lb (5.1 kg)
- Weight - Shipping : 5.4 lb (7.0 kg)
- Agency Approvals : UL, CE, RoHS/WEEE compliant
- Carton and Contents : Power cable and quick start guide
| Condition | New |
|---|---|
| SKU | QSC-GXD-4 |
| UPC | 684284064899 |