QSC GXD4 Professional Power Amplifier

QSC GXD4 Professional Power Amplifier Product 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.

SPECIFICATIONS

• 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 33.5 dB
• Output Circuitry Class D

• 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 (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
• 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