GX7

Power Amplifier

Buy Online

This product has been discontinued. Please, consider the following models:

  • RMX4050A. A two-channel amplifier (3RU) ideal for demanding sound reinforcement applications and fixed installations
  • GXD8. A two-channel amplifier (2RU) featuring powerful DSP processing
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" 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 below clipping
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 lb (12.1 kg)
Shipping: 31 lb (14.1 kg)		 Net: 28 lb (12.6 kg)
Shipping: 32 lb (14.6 kg)		 120V model:
Net: 15.5 lb (7 kg)
Shipping: 20.5 lb (9.3 kg)
230V model:
Net: 16.5 lb (7.5 kg)
Shipping: 21.5 lb (9.75 kg)
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

All specifications are subject to change without notice.