QSC GXD4

รหัสสินค้า : GXD4

QSC GXD4 เครื่องขยายเสียง 2 CH 1,600 วัตต์

   The GXD 4 from QSC is a power amplifier designed for professional PA systems utilizing speakers with 4 and 8 ohm loads and a maximum output of 1600W. The GXD 4 employs a class D output stage with a universal power supply for high performance and efficiency, while keeping the unit lightweight at 11.3 lbs.The integrated DSP section includes High and Low-Pass filters (24dB LR), 4-band parametric equalizer, signal alignment delay, and RMS/Peak speaker protection limiting.

   The parallel XLR and 1/4″ TRS input connectors offer broad compatibility with convenient loop-through capabilities, while the professional binding posts and NL4 connector provide mono and bi-amped speaker connections.In addition to the limiting offered on inputs and outputs, the GXD employs smart speaker protection by providing settings for the loudspeaker’s continuous output and impedance (4 ohm or 8 ohm). The GXD 4 ships with a standard IEC power cord.

Features:

• High peak output power with up to 1600 W
• Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4–ohm and 8-ohm speaker systems
• Class-D output stage with a universal power supply for high performance and efficiency
• Extensive built-in loudspeaker processing, 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 GXD 4

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

Maximum Voltage Gain 33.5 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 (each channel) 3-pin XLR/F / 1/4" 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" × 1.0", 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.

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 15.4 lb (7.0 kg)

Agency Approvals UL, CE, RoHS/WEEE compliant

Carton and Contents Power cable and quick start guide

SPECIFICATIONS GXD 8

Stereo Mode, watts per channel

8Ω dynamic, both channels driven 1500 watts

4Ω dynamic, both channels driven 2250 watts

8Ω continuous, both channels driven 800 watts

4Ω continuous, both channels driven 1200 watts

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

Dynamic Headroom (4Ω) 2.73 dB