QSC GXD 4 User Manual
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QSC GXD 4 User Manual

Gxd amplifier
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GXD Amplifier
User Manual
GXD 4
GXD 8
TD-000450-01-A
*TD-000450-01*

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Summary of Contents for QSC GXD 4

  • Page 1 GXD Amplifier User Manual GXD 4 GXD 8 TD-000450-01-A *TD-000450-01*...

  • Page 2: Explanation Of Symbols

    EXPLANATION OF SYMBOLS The term “WARNING!” indicates instructions regarding personal safety. If the instructions are not followed the result may be bodily injury or death. The term “CAUTION!” indicates instructions regarding possible damage to physical equipment. If these instructions are not followed, it may result in damage to the equipment that may not be covered under the warranty.

  • Page 3: Maintenance And Repair

    To avoid a danger of subsequent damage to the apparatus, injuries to persons and/or the creation of additional safety hazards, all maintenance or repair work on the apparatus should be performed only by a QSC authorized service station or an authorized QSC International Distributor. QSC is not responsible for any injury, harm or related damages arising from any failure of the customer, owner or user of the apparatus to facilitate those repairs.

  • Page 4: Package Contents

    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).

  • Page 5: Amplifier Front Panel

    — Figure 2 — — Figure 3 — 1. Channel 1 and Channel 2 Input XLRs 5. Channel A Output NL4 Connector 9. Circuit Breaker (GXD 4–11 A, GXD 8–20 A) (female) 6. Channel B Output Binding Posts 10. Locking IEC Power Connection 2.

  • Page 6: Input Wiring

    Figure 6 • NL4 connector – See • Binding Posts - Use banana plugs or wire directly. Power Output 8 Ω 4 Ω Amplifier Total GXD 4 400 W 600 W 1200 W GXD 8 800 W 1200 W 2400 W —...

  • Page 7: Setup And Operation

    Controls Figure 8 1. Channel A CLIP indicator – illuminates red when the input is high enough to cause the channel to clip. 2. Channel A SIG (signal) present indicator – illuminates green when there is a signal applied to the input. 3.

  • Page 8: Main Navigation Menu

    Navigation Key Turn Knob B (or A) Select / Press Adjust Home Screen P1: ST SAT FULL RANGE Figure 11 LIMIT CLIP -100 10.0 From any screen HOME STATUS: OK 1. Asterisk (*) indicating an unsaved change to the preset —...
  • Page 9 PRESET RECALL Recall a preset to configure the amplifier to meet the requirements of your loudspeakers and installation. Figure 18 There are 20 Presets. See PRESET > RECALL P20: MONO SUBS 100 HZ 1. From HOME ENTER PRESET, ENTER PRESET RECALL, ENTER ENTER TO SELECT —...
  • Page 10 TYPE, ENTER MILD, MEDIUM, or AGGRESSIVE ENTER Model 4Ω 8Ω POWER, ENTER GXD 4 5 W – 600 W 5 W – 400 W POWER (see Table ENTER GXD 8 5 W – 1200 W 5 W – 800 W IMPEDANCE (4Ω...
  • Page 11 Utilities Status UTILITIES > STATUS Figure 34 AMP TOTAL RUN TIME: 12:42:5 HRS 1. From HOME, ENTER HARDWARE: V3 UTILITIES, ENTER FIRMWARE: V1.0.34 STATUS ENTER — Figure 34 — a. AMP TOTAL RUN TIME - Hours (HH:MM:SS) b. HARDWARE - the version of the hardware unit c.

  • Page 12: Preset Defaults

    Preset Defaults The following settings apply to all factory presets. Sensitivity!: 1.2V (+4dBu) Crossover!: POLARITY + EQ Band 1!: GAIN 0.0 dB, FREQUENCY 100 Hz, BANDWIDTH 1.0 OCT EQ Band 2!: GAIN 0.0 dB, FREQUENCY 500 Hz, BANDWIDTH 1.0 OCT EQ Band 3!: GAIN 0.0 dB, FREQUENCY 1000 Hz, BANDWIDTH 1.0 OCT EQ Band 4!: GAIN 0.0, dB FREQUENCY 5000 Hz, BANDWIDTH 1.0 OCT Delay!: 0.00 MS, M, FT (milliseconds, meters, and feet)

  • Page 13: Specifications

    Specifications GXD 4 GXD 8 Stereo Mode - watts per channel 8Ω dynamic, both channels driven 600 watts 1500 watts 4Ω dynamic, both channels driven 800 watts 2250 watts 8Ω continuous, both channels driven 400 watts 800 watts 4Ω continuous, both channels driven...
  • Page 14 © 2015 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are trademarks of QSC Audio Products, LLC in the U.S. and other countries. All other trademarks are the property of their respective owners. http://patents.qsc.com.

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