QSC GX3

$299.99

GX Series Professional Power Amplifiers GX Series
SPECIFICATIONS GX3 GX5 GX7
Watts per channel
8 ohms / 1 kHz (both channels driven) 300 W 500 W 725 W
8 ohms / 1 kHz (single channel driven) 350 W 600 W 800 W
4 ohms / 1 kHz (both channels driven) 425 W 700 W 1000 W
4 ohms / 1 kHz (single channel driven) 500 W 850 W 1200 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 Vrms
Voltage Gain (8 ohms) 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 4 ohms, 120V) 6.3A 6A 10.1A
Frequency Response 20 Hz - 20 kHz, +0, -1 dB
Dynamic Headroom (4 ohms) 2 dB
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) SpeakonŽ, 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 Height: 3.5" (89 mm) 2RU
Width: 19" (483 mm)
Depth: 10.1" (257 mm)
Weight Net: 27 lbs (12.1 kg)
Shipping: 31 lbs (14.1 kg) Net: 28 lbs (12.6 kg)
Shipping: 32 lbs (14.6 kg) 120V model:
Net: 15.5 lbs (7 kg)
Shipping: 20.5 lbs (9.3 kg)
230V model:
Net: 16.5 lbs (7.5 kg)
Shipping: 21.5 lbs (9.75 kg)
Agency Approvals UL, CE, RoHS/WEEE Compliant
AC Current and Heating, 120 VAC GX3 GX5 GX7
Operating Condition AC amps BTU/hr AC amps BTU/hr AC amps BTU/hr
Idle 0.2 44 0.3 60 0.6 82
8 + 8 ohms, 1/8 power 1 4.1 904 3.3 734 6.7 1169
8 + 8 ohms, 1/3 power 2 6.1 1160 8.5 1456 13.3 1807
8 + 8 ohms, full power 3 9.75 1109 16.2 1891 26.5 2167
4 + 4 ohms, 1/8 power 1 6.3 1515 5.8 1160 10.1 1963
4 + 4 ohms, 1/3 power 2 9.4 2105 11.2 2162 18.5 2612
4 + 4 ohms, full power 3 15.0 2297 24.5 3754 40 4478
1 1/8 power represents typical operating conditions
2 1/3 power represents peak program levels
3 Full power is breaker limited to short periods
For 230 V, multiply AC current by 0.5
For 100 V, multiply AC current by 1.25

Add to Cart:

  • Model: GX3
  • Shipping Weight: 33lbs
  • Manufactured by: QSC


This product was added to our catalog on Thursday 16 August, 2012.

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