QSC GX3 2 channels, 300 watts/ch at 8Ω, 425 watts/ch at 4Ω

Vendor: QSC
Description QSC GX3 2 channels, 300 watts/ch at 8Ω, 425 watts/ch at 4Ω For those who require maximum performance and portability on a limited budget the GX Series amplifiers are ideal for those...
$349.99 $439.99
Title

QSC GX3 2 channels, 300 watts/ch at 8Ω, 425 watts/ch at 4Ω

For those who require maximum performance and portability on a limited budget the GX Series amplifiers are ideal for those professional entertainers. The QSC's hallmarks and trademarks brand are all intrinsic to GX, it crafted in precision manufacturing, meticulous engineering, long-term reliability and professional audio quality. Add contemporary styling, light weight, advanced protection circuitry, multiple input/output options, and the GX Series clearly represents real value - something everyone can use. The GX amplifiers is designed to deliver just the perfect amount of power to the most popular speakers used by entertainers. Most of the time, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker’s “Program (Music) Power” rating or two times (2 x) the “Continuous (RMS) Power” rating.

The QSC 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. Power levels matched to the most popular speakers. Inputs: XLR, 1/4" TRS and phono. Outputs: Speakon® combo and binding posts.

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

* 230V 16.5 lb (7.5 kg)

SPECIFICATIONS GX3
  Output power per channel
8 ohms / 1 kHz (both channels driven) 300 W
8 ohms / 1 kHz (single channel driven) 350 W
4 ohms / 1 kHz (both channels driven) 425 W
4 ohms / 1 kHz (single channel driven) 500 W
Distortion (1 dB below rated power, 1 kHz) 8 ohms: less than 0.02%
4 ohms: less than 0.05%
Signal to Noise (20 Hz - 20 kHz) 100 dB
Input Sensitivity 1.2 V rms
Voltage Gain 32.2 dB
Output Circuitry Class B
Power Requirements (1/8 power, pink noise at 4 ohms, 120V) 6.3 A
Frequency Response 20 Hz–20 kHz, +0, -1 dB
Dynamic Headroom (4 ohms) 2 dB
Input Impedance Greater than 20 kΩ (balanced)
Maximum Input Level +24 dBu (16 V rms)
Input Connectors (each channel) 3-pin XLR and 1/4-inch TRS, balanced, parallel
Phono, unbalanced
Output Connectors (each channel) Speakon®, 1/4-inch, 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 below clipping
Blue POWER LED, AC on
Rear Panel Controls Full Range / Crossover switch
100 Hz, 3rd order LP (sub), 2nd order HP (top)
Dimensions Height: 3.5-inch (89 mm) 2RU
Width: 19-inch (483 mm)
Depth: 10.1-inch (257 mm)
Weight Net: 27 lb (12.1 kg)
Shipping: 31 lb (14.1 kg)
Agency Approvals UL, CE, RoHS/WEEE Compliant
AC Current and Heating, 120 VAC
(multiply current by 0.5 for 230 VAC)
GX3
Operating Condition AC amps BTU/hour
Idle 0.2 44
8 + 8 ohms, 1/8 power 1 4.1 904
8 + 8 ohms, 1/3 power 2 6.1 1160
8 + 8 ohms, full power 3 9.75 1109
4 + 4 ohms, 1/8 power 1 6.3 1515
4 + 4 ohms, 1/3 power 2 9.4 2105
4 + 4 ohms, full power 3 15.0 2297