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QSC GX-3 Power Amp

SKU:

GX3

Brand:

QSC

Shipping: Free Shipping

Life-Time Tech Support: FREE

Your Price: $299.99

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Product Details
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Product Description

FEATURES

Power levels matched to the most popular speakers used by entertainers
Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems
Inputs: XLR, 1/4" TRS and phono input connectors for compatibility with any source
Outputs: Speakon® combo accepts, 1/4" (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems.
Minimum depth chassis (10.1" / 257 mm) fits in compact, inexpensive effects racks
Lightweight – less than 30 lbs (13.5 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

GX Series

SPECIFICATIONS

GX3

GX5

8 ohms / 1 kHz (both channels driven)

300 W

500 W

8 ohms / 1 kHz (single channels driven)

350 W

600 W

4 ohms / 1 kHz (both channels driven)

425 W

700 W

4 ohms / 1 kHz (single channels driven)

500 W

850 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

34.4 dB

Output Circuitry

Class B

2-tier Class H

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

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)

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)

Agency Approvals

UL, CE, RoHS/WEEE Compliant

AC Power Consumption

AC Current and Heating, 120 VAC
	GX3		GX5
Operating Condition	AC amps	BTU / hr	AC amps	BTU / hr
Idle	0.2	44	0.3	60
8 + 8 ohms, 1/8 power ¹	4.1	904	3.3	734
8 + 8 ohms, 1/3 power ²	6.1	1160	8.5	1456
8 + 8 ohms, full power ³	9.75	1109	16.2	1891
4 + 4 ohms, 1/8 power ¹	6.3	1515	5.8	1160
4 + 4 ohms, 1/3 power ²	9.4	2105	11.2	2162
4 + 4 ohms, full power ³	15.0	2297	24.5	3754

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