GX Series
Preliminary Specifications
qscaudio.com
All specifications are subject to change without notice.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
GX Spec Sheet 11/09/10
©2010 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and
other countries. GuardRail is a trademark of QSC Audio Products, LLC. Speakon is a trademark of Neutrik. All other trademarks are the property of their respective owners. US
patent pending. Other patents may apply.
GX3 GX5 GX7 GX7 (230V Only)
Stereo Mode
8Ω / both channels driven / 1 kHz*
8Ω / single channel driven / 1 kHz*
4Ω / both channels driven / 1 kHz*
4Ω / single channel driven / 1 kHz*
300 W
350 W
425 W
500 W
500 W
600 W
700 W
850 W
725 W
800 W
1000 W
1200 W
Distortion (typical)
1 kHz: 1 dB below rated power 8Ω: less than 0.02% / 4Ω: less than 0.05%
Signal to Noise (20 Hz – 20 kHz) 100 dB
Input Sensitivity 1.2 Vrms
Voltage Gain (8Ω) 32.2 dB 34.4 dB 36.1 dB
Output Circuitry Class B 2-tier Class H 2-tier Class H
Power Requirements (1/8 power, pink noise at 4Ω, 120 V) 6.3 A 6 A 10.1 A
Frequency Response 20 Hz – 20 kHz, +0, 1 dB
Dynamic Headroom (4Ω) 2 dB
Damping Factor 100
Input Impedance (Ω) 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)
Dimensions (HWD) 3.5" (2 RU) x 19" x 10.1" (89 mm x 483 mm x 257 mm)
Weight - Net 27 lb (12.1 kg) 28 lb (12.6 kg) 15.5 lbs (7 kg) 16.5 lbs (7.5 kg)
Weight - Shipping 31 lb (14.1 kg) 32 lb (14.6 kg) 20.5 (9.3 kg) 21.5 (9.75 kg)
Agency Approvals UL, CE, RoHS/WEEE compliant
* At onset of clipping
Inputs
XLR, 1/4" TRS and phono input connectors
for compatibility with any source
Crossover
Subwoofer/Satellite crossover built-in
Speakon
®
combo output connector
accepts 1/4" or Speakon 2 wire connectors
Binding post output for compatibility
with any loudspeaker wiring scheme
Outputs to Speakers
please recycle
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