Skip to main content Skip to footer

QSC GX7 Stereo Power Amplifier  

Product #H70032

45 day price guarantee, 45 day return policy, 100% secure shopping


Item Note:

This product has been discontinued but may be available as a Open Box item.

Similar Items

See All QSC Live Power Amplifiers

Provides 1,000W at 4 ohms in a lightweight design with special protection technology.

The GX7 professional power amplifier continues in the tradition of QSC's top-selling GX Series professional power amplifiers by offering an attractive combination of power, fidelity, configurability, long-term reliability, and overall value.

At the heart of the GX7 is an all-new, advanced power supply based on the road-proven PowerLight Series technology. The result is a more overall power output in a lightweight casing compared to previous GX models”without any sacrifice in audio quality.

At 1000W per channel at 4 ohms, the GX7 provides more than ample power to connect up to four 500W 15" 2-way speakers or two 1000W subwoofers at a time. This will help to keep your overall system cost down while still maintaining maximum performance levels. The 8 ohm output is 725 watts per channel which yields considerable headroom and increased dynamic range for today's popular loudspeakers.

Road-proven PowerLight Series amplifier technology
GuardRail (also found in K and KW Series loudspeakers) protects both the amp and speakers from damaging clipping and overload without audible pumping or distortion
Subwoofer/Satellite crossover built-in
Inputs: XLR, 1/4" TRS, and phono input connectors for compatibility with any source
Minimum depth chassis (10.1"/257mm) fits in compact, inexpensive effects racks
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
Front panel LEDs monitor Power, Signal, and Clipping

Beef up your sound without busting up your budget. Order today!


GX7 Stereo Power Amplifier Specifications:

Power Rating:
8Ω / both channels driven / 1 kHz: 725W
8Ω / single channel driven / 1 kHz: 800W
4Ω / both channels driven / 1 kHz; 1,000W
4Ω / single channel driven / 1 kHz; 1,200W

Distortion (typical): 20 Hz - 20 kHz: 1 dB below rated power 8Ω: less than 0.02% / 4Ω: less than 0.05%
Signal to Noise: (20 Hz - 20 kHz) 100dB
Input Sensitivity: 1.2 Vrms
Voltage Gain: (8Ω) 33.1dB
Output Circuitry: 2-tier Class H
Power Requirements: (1/8 power, pink noise at 4Ω, 120 V): 10.1A
Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
Dynamic Headroom (4Ω): 2dB
Input Impedance (Ω): 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)
Amplifier dimensions (HxWxD): 3.5" (2RU) x 19" x 10.1" (89mm x 483mm x 257mm)
Carton Dimensions (HxWxD): 5.75" x 23" x 14" (146mm x 584mm x 355mm)
Net Weight: 15.5lb. (7kg)
review resources


by PowerReviews
QSCGX7 Stereo Power Amplifier

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


Big power from a light weight!


from Bettendorf, IA

About Me Professional Musician

Ask me a question


  • Easy To Use
  • Excellent Sound
  • Portable
  • Powerful


    Best Uses

    • Events
    • Mobile DJ
    • Performances

    Comments about QSC GX7 Stereo Power Amplifier:

    My band is using the 15 lbs GX7 to power a pair of JBL MRX515 and it sounds fantastic! For a small portable club PA our band had been using a Carvin powered mixer that just wasn't cutting it. It was supposed to be 600 watts a channel but it was just constantly clipping and people complained about the clarity and lack volume of the vocals. I purchased GX7 and now we have volume to spare with good, clean, dynamic vocals.

    I've also A/B'd the GX7 in my bass rig with my trusty old Crown Macro-Tech that weighs almost 5x's as much and the QSC was the clear winner. Really amazed at the authority and accuracy of this amp.

    Its seems hard to believe that a couple years ago I was hauling around two racks that weighed nearly 200 lbs. to produce a whole 1600 watts. Now I can walk into club gig with a rack in one hand that contains 2000 watts! The one thing I find slightly humorous is that the SKB rack I have it in weighs almost as much as the amp itself!

    Displaying review 1

    Back to top