QSC GXD4 | 2-channel Amplifier With Dsp | 400w 8ohms

GXD4 Power Amplifier with DSP (1600w)

The GXD packs a lot of punch with its DSP processing and whopping 1600W. Use it to power your church PA, club PA, restuarant, bar, shopping mall - the list just goes on!

• High peak output power with up to 1600 Watts 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 & Low-Pass filters, 4-band PEQ, Limiting, and Delay
• 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

SPECIFICATIONS

Stereo Mode - Watts per channel

• 8Ω dynamic, both channels driven 600 Watts
• 4Ω dynamic, both channels driven 800 Watts 
• 8Ω continuous, both channels driven 400 Watts 
• 4Ω continuous, both channels driven 600 Watts 

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

Voltage Gain (8Ω)

• 33.5 dB 

Output Circuitry - Class D - Power Requirements: 1/8 power at 4Ω

• - 100 Vac 3.4 Amps 6.2 Amps
• - 120 Vac 2.9 Amps 5.6 Amps
• - 230 Vac 1.6 Amps 3.2 Amps

Frequency Response (20 Hz – 20 kHz)

• +0.7 dB, -0.8 dB

Dynamic Headroom (4Ω)

• 1.25 dB 

Damping Factor

• 100

Input Impedance (Ω)

• 20k (balanced), 10k (unbalanced)

Maximum Input Level

• +23.5 dBu

Input Connectors (each channel)

• 3-pin XLR/F / 1/4" TRS, balanced

Output Connectors (each channel)

• NL4 (Channel 1 - 1+/-, Channel 2 - 2+/-), binding posts

Amplifier and Load Protection

• Short circuit, open circuit, thermal, RF protection Load protected against DC faults

Front Panel Controls and Indicators

• 2 x Rotary Encoders
• 3 x Operational buttons (HOME, ENTER, EXIT)
• 2 x Green Signal LEDs, indicate signal presence
• 2 x Red A/D Clip LEDs, indicate input over-drive and/or amplifier current clipping
• Blue Power LED ring, AC on

2.12" x 1.0", 256 x 128 pixel LCD

DSP Functions

• High Pass Filter, 4th order LR, adjustable Frequency 20 Hz to 4 kHz
• Low Pass Filter, 4th order LR, adjustable Frequency 60 Hz to 4 kHz
• 4-band PEQ, with variable Frequency, Gain, and Bandwidth
• Peak Limiter, with Power, Agressiveness, and Impedance selection Delay 50 msec max.

Dimensions (HWD)

• 3.5" (2 RU) x 19" x 10.2" (89 mm x 483 mm x 259 mm)

Weight (Net)

• 11.3 lb (5.1 kg) 13.2 lb (6.0 kg)

Weight - Shipping

• 15.4 lb (7.0 kg) 17.3 lb (7.8 kg) 

Carton and Contents

• Power cable, and quick start guide