Description
The QSC GX5 power amplifier features power levels matched to the most popular speakers used by entertainers, and optimized for maximum real-world headroom into 4- and 8-ohm speaker systems.
At just 12.6 kg, the QSC GX5 power amplifier is light enough to cart around – but we’re seeing most of these get picked up once, plonked into a fixed installation and left to do their thing. They’re loaded up with all the usual protection features you’d expect these days from an amplifier: Short circuit, open circuit, thermal, RF protection, and load protected against DC faults. Plenty of connectivity with inputs via 2 x XLR, balanced 1/4″ and also RCA.
QSC GX Series – Professional audio quality, meticulous engineering, precision manufacturing and long-term reliability – are all intrinsic to GX. Add contemporary styling, multiple input/output options, light weight, and advanced protection circuitry, and the GX Series clearly represents real value – something everyone can use.
Output power:
- 8 ohms / 1 kHz (both channels driven): 500W
- 8 ohms / 1 kHz (single channel driven): 600W
- 4 ohms / 1 kHz (both channels driven): 700W
- 4 ohms / 1 kHz (single channel driven): 850W
Specifications
| SPECIFICATIONS |
GX3 |
GX5 |
GX7 |
|
Output power 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 V rms |
| Voltage Gain |
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) |
6.3 A |
6 A |
10.1 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) |
| Product Dimensions (H×W×D) |
89 × 483 × 257 mm
3.5 × 19 × 10.1 in |
| Carton Dimensions (H×W×D) |
610 × 380 × 153 mm
24 × 15 × 6 in |
| Net Weight |
12.1 kg / 27 lb |
12.6 kg / 28 lb |
120V model: 7 kg / 15.5 lb
230V model: 7.5 kg / 16.5 lb |
| Shipping Weight |
13.2 kg / 29.1 lb |
14.5 kg / 32 lb |
120V model: 9.3 kg / 20.5 lb
230V model: 9.75 kg / 21.5 lb |
| Agency Approvals |
UL, CE, RoHS/WEEE Compliant |
AC Current and Heating, 120 VAC
(multiply current by 0.5 for 230 VAC) |
GX3 |
GX5 |
GX7 |
| Operating Condition |
AC amps |
BTU/hour |
AC amps |
BTU/hour |
AC amps |
BTU/hour |
| 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 maximum operating conditions
2 1/3 power represents over-driven 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
