11

SPECIFICATIONS

GX3

GX5

GX7

SPECIFICATION SUBJECT TO CHANGE WITHOUT NOTICE.

OUTPUT POWER, 1 kHz, 0.1 % clipping

8Ω, both channels driven

 

 

300 W

500 W

 

725W

8Ω, single channel driven

 

 

350 W

600 W

 

800W

4Ω, both channels driven

 

 

425 W

700 W

 

1000W

4Ω, single channel driven

 

 

500 W

850 W

 

1200W

2Ω, both channels driven, 1% clipping

 

200 W

350 W

 

600W

SIGNAL TO NOISE (20 Hz – 20 kHz)

 

100 dB

 

 

 

 

INPUT SENSITIVITY

 

 

1.2 Vrms

 

 

 

 

VOLTAGE GAIN AT 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

 

6.3 A

6 A

 

11.5 A

at 4Ω 120 V AC)

 

 

 

 

 

 

 

 

DISTORTION (1 dB below rated power, 1 kHz)

 

8Ω, less than 0.02%

 

 

 

 

 

 

 

 

4Ω, less than 0.05%

 

 

 

 

FREQUENCY RESPONSE

 

 

20 – 20kHz, +0, -1dB

 

 

 

 

DYNAMIC HEADROOM, 4Ω

 

 

2dB

 

 

 

 

INPUT IMPEDANCE

 

 

Greater than 20K ohms (balanced or unbalanced)

 

 

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

 

 

 

 

CONTROLS AND INDICATORS, FRONT PANEL

 

Gain controls, 21 detents

 

 

 

 

 

 

 

 

Red Clip LEDs, proportional, 0.1% THD threshold.

 

 

 

 

 

 

Green Signal LEDs, threshold -35 dB

 

 

 

 

 

 

Blue Power LED, AC-on.

 

 

 

 

CONTROLS, REAR PANEL

 

 

Full Range / Crossover switch

 

 

 

 

 

 

 

 

100 Hz, 3rd order LP (sub), 2nd order HP (top).

 

 

DIMENSIONS (HWD)

 

 

3.5” (2RU) x 19” x 10.1” (89 mm x 483 mm x 257 mm)

 

 

WEIGHT – Shipping / Net

 

 

31 / 27 lbs (14.1 / 12.1 kg)

32 / 28 lbs (14.6 / 12.6 kg)

22 / 17 lbs (10 / 7.7 kg)

AGENCY APPROVALS

 

 

UL, CE, RoHS / WEEE compliant. Meets FCC Class B EMI limits.

 

 

 

 

 

 

 

 

 

 

AC POWER CONSUMPTION 1/8 power, ohms (AC Current and Heating, 120Vac)

 

 

 

 

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

 

7.6

1183

8 + 8 ohms, 1/3 power (2)

 

6.1

1160

 

8.5

1456

 

13.4

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

 

11.5

1908

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

 

39.4

4478

EN

(1)1/8 power represents typical operating conditions.

(3)Full power is breaker limited to short periods.

(2) 1/3 power represents peak program levels.

(4) For 230V, multiply AC current by 0.5. For 100V, multiply AC current by 1.25.

Page 11
Image 11
QSC Audio user manual Specifications, GX3 GX5 GX7

GX3, GX5, GX7 specifications

QSC Audio has established itself as a leader in professional audio solutions, and its GX series of power amplifiers—GX7, GX5, and GX3—reflect the brand's commitment to quality and performance. These amplifiers are designed to deliver reliable, high-quality sound reinforcement, meeting the demands of musicians, DJs, and audio engineers alike.

The QSC GX7 is a robust amplifier capable of delivering 1,000 watts per channel at 4 ohms, making it an excellent choice for larger venues or events where powerful sound output is essential. It features QSC's PowerLight technology, which provides high efficiency and a lightweight design, ensuring portability without sacrificing power. The GX7 also includes an advanced clip limiter that protects the system from distortion, while maintaining audio clarity. Its rear panel features XLR and TRS inputs, allowing for versatile connectivity options.

Next in the lineup is the GX5, a mid-range amplifier that offers 700 watts per channel at 4 ohms. It strikes a perfect balance between performance and size, making it suitable for both small to medium-sized events or as part of a larger sound system. Like the GX7, it adopts the PowerLight technology for energy efficiency, and its durable construction ensures reliability in diverse environments. The GX5 also comes equipped with a low-frequency protection circuit that safeguards speakers from over-excursion, preserving sound quality throughout usage.

The smallest of the series, the GX3, delivers 500 watts per channel at 4 ohms. Ideal for smaller venues, mobile applications, or as monitors in a studio setting, the GX3 shares many of the same technologies as its larger counterparts, including the PowerLight design and a comprehensive protection system. Its front-to-back ventilation helps maintain thermal stability, enhancing performance during longer sessions.

All three models incorporate a design philosophy emphasizing user convenience and flexibility. The amplifiers feature an intuitive rear panel layout that simplifies setup and operation, while their lightweight design makes them easy to transport. QSC’s innovative technology ensures consistent performance and durability, making the GX series a trusted choice for professionals.

In summary, the QSC Audio GX7, GX5, and GX3 amplifiers deliver impressive power, solid build quality, and advanced features tailored for a variety of audio applications. Whether powering large PA systems or small setups, these amplifiers embody QSC's dedication to audio excellence and reliability.