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CCI Solutions > Sound > Audio Amplifiers > QSC GX3 Power Amplifier

QSC GX3 Power Amplifier with Speakon® Combo Output

300W, power levels matched to the most popular speakers used by entertainers, binding post, and 1/4" connectors

  • Description
  • Specifications
  • Videos
  • Reviews/Ratings

GX3 amplifiers are ideal for professional entertainers who require maximum performance and portability on a limited budget.

QSC's GX3 uses the latest evolution of the QSC Grounded Collector output system, for optimum cooling of the critical power transistors. A true Class B biasing system combines maximum thermal efficiency with excellent audio performance. The GX3 is ideal for speakers in the 300 watt (Program) range. It supplies maximum possible power to 4 ohm and 8 ohm loads. QSC designers have optimized output and appearance while reducing raw material cost and weight. It's all here - dramatic styling, easy hookup and adjustments, excellent audio quality and QSC reliability.

Features:

  • Power levels matched to the most popular speakers used by entertainers
  • Optimized for maximum real-world headroom into 4- and 8-ohm speaker systems
  • Inputs: XLR, 1/4-inch TRS and phono input connectors for compatibility with any source
  • Outputs: Speakon® combo accepts 1/4-inch (TS) plugs or Speakon 2- and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
  • Minimum depth chassis (10.1-inch / 257 mm) fits in compact, inexpensive effects racks
  • Lightweight - GX3 and GX5 less than 26 lb (12.5 kg). GX7 only 15.5 lb (7 kg)*
  • Detented gain controls for precise setting and matching of sensitivity
  • GuardRail™ automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show
  • Front panel LEDs monitor power, signal, and clipping
  • Subwoofer/satellite crossover built-in

Be sure to check out the brochure and the video for more information!

Specifications for the QSC GX3 Power Amplifier

8 ohms / 1 kHz (both channels driven) 300 W
8 ohms / 1 kHz (single channels driven) 350 W
4 ohms / 1 kHz (both channels driven) 425 W
<4 ohms / 1 kHz (single channels driven)/td> 500 W
Distortion (typical)
20 Hz - 20 kHz, 1 dB below rated power
8 ohms: less than 0.05%
4 ohms: less than 0.1%
Signal to Noise (20 Hz - 20 kHz) 100 dB
Input Sensitivity 1.2 Vrms
Voltage Gain (8 ohms) 32.2 dB
Output Circuitry Class B
Power Requirements (1/8 power, pink noise at 4 ohms, 120V) 6.3A
Frequency Response 20 Hz - 20 kHz, +0, 1 dB
Dynamic Headroom (4 ohms) 2 dB
Damping Factor (8 ohms) 100
Input Impedance (ohms) Greater than 20k (balanced)
Maximum Input Level +24 dB (16 Vrms)
Input Connectors (each channel) 3-pin XLR and 1/4" TRS, balanced, parallel
Phono, unbalanced
Output Connectors (each channel) Speakon®, 1/4", Binding Posts
Amplifier and Load Protection Short circuit, open circuit, thermal, RF protection
Load protected against DC faults
Front Panel Controls and Indicators Gain controls, 21 detents
Red Clip LEDs, proportional, 0.1% THD threshold
Green Signal LEDs, threshold -35 dB
Blue Power LED, AC on
Rear Panel Controls Full Range / Crossover switch
100 Hz, 3rd order LP (sub), 2nd order HP (top)
Cordset
120V 50/60 Hz
230V 50 Hz

NEMA-15
Euro 16A
Dimensions Height: 3.5" (89 mm) 2RU
Width: 19" (483 mm)
Depth: 10.1" (257 mm)
Weight Net: 25 lbs (11.5 kg)
Shipping: 30 lbs (13.5 kg)
Agency Approvals UL, CE, RoHS/WEEE Compliant
Overall Rating:  N/A Number of Reviews: 0
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