Item #: QSC GX5 LIST

QSC GX5 700 Watt Two Channel Stereo Power Amplifier

Shop QSC GX5 700 Watt Two Channel Stereo Power Amplifier from AMS with 0% Interest Payment Plans and Free Shipping.
A fantastic "bang for the buck" power amp.

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Product Description

The QSC GX5 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC designers, headed by Pat Quilter, have optimized output and appearance while reducing raw material cost and weight. It’s all here – dramatic styling, easy hookup and adjustments, excellent audio quality and QSC reliability.

Purchase a GX Series Amplifier from AMS and Recieve QSC's
QSC 6 Year Extended Warranty
after registering your product at

QSC GX5 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-inch TRS and phono input connectors for compatibility with any source
  • Outputs: Speakon combo accepts, 1/4-inch (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 inches/257 mm) fits in compact, inexpensive effects racks
  • Lightweight – less than 26 lbs (12.5 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-inGX Entertainer
GX amplifiers deliver just the right amount of power to the most popular speakers used by entertainers. Most loudspeaker manufacturers recommend an amplifier with power output equal to the speaker’s Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating. The GX5 supplies maximum possible power to 4 ohm and 8 ohm loads. Owners of popular 4 ohm loudspeakers (dual-woofer, two-way models and many subwoofers) will find the 700 watt (4 ohm) power of the GX5 an ideal match.

Technical Notes
The GX5 uses a Class H system, based on key elements of the PL Series, (PLX, PL3, CX, DCA) almost doubling power in the same size and weight. QSC design expertise allows the output devices to shift from low-power to high-power rails in less than a millionth of a second, ensuring that the output power is always right where it needs to be without excess loss.

QSC GX5 uses premium toroidal power transformers for reliable mid-weight performance. A variable-speed fan moves air crosswise through the amplifier, drawing cool air in over the power transformer, through the fan, and then over the heat sink. This keeps the transformer cool and allows a full size heat sink to fit in a down-sized />
GuardRail protection delivers full peak power while preventing detrimental overloads. During excessive clipping, or extreme overheating, GuardRail reduces gain just enough to preserve the integrity of the music, protect the speakers and keep the audience excited, without unprofessional distortion levels or shutdowns.

Subwoofer/Satellite Crossover
A subwoofer reduces strain on the full-range speaker, allowing it to play louder, or letting a smaller speaker do the same job. The GX Series supports this mode with a Crossover switch that splits the full-range input entering Ch 1, sending 20 Hz -100 Hz to the sub (Ch 1) and 100 Hz - 20 kHz to the top box (Ch 2). The front panel gain controls balance the sub and top box, while GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range.

Product Specifications
QSC GX5 Power Amplifier Specifications
  • Power
    • 8 ohms / 1 kHz (both channels driven) 500 W
    • 8 ohms / 1 kHz (single channels driven) 600 W
    • 4 ohms / 1 kHz (both channels driven) 700 W
    • 4 ohms / 1 kHz (single channels driven) 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): 34.4 dB
  • Output Circuitry: 2-tier Class H
  • Power Requirements (1/8 power, pink noise at 4 ohms, 120V): 6A
  • 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 (balanced)
    • 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
    • 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 inches (89 mm)
    • Width: 19 inches (483 mm)
    • Depth: 10.1 inches (257 mm)
  • Weight:
    • Net: 26 lbs (12 kg)
    • Shipping: 31 lbs (14 kg)
  • Agency Approvals: UL, CE, RoHS/WEEE Compliant

Helpful Info about the Manufacturer
Phone:  800-772-2834 Warranty:  3 Years; 1 Year on TouchMix; B-Stock is 1 (one) Year only!
Jack F Submitted: 7/24/2018
Product Rating
Does what it's supposed to do...
Product Rating
What is your opinion of this product?
...Powers my speakers to ear bleeding levels!! Saw some other amps at this power level that did NOT have cooling fans... My uneducated logic figured I'd rather have the cooling at the volume I was planning on listening to. Read some whining about fan noise but I don't get it....once the music starts, you don't hear it. Price was reasonable, IMHO, and AMS "rocks" with their billing option. Pay off your card every month and ZERO interest. A simple 2 channel amp to listen to pure stereo at levels that a 7/9/11 channel A/V receiver can't reach.
D-Allen Submitted: 7/23/2018
Product Rating
Well made product
What is your opinion of this product?
Tim Lape` Submitted: 12/29/2017
Product Rating
Plenty of Power
What is your opinion of this product?
Very well designed Power Amp. Perfectly matched to my bass cabinets with no clipping. Very satisfied.....
Chuck Submitted: 12/20/2017
Product Rating
Its more then I expected
What is your opinion of this product?
I bought a pair of Pevey 115 spks, and my fender power mixer did not driver them very well. So I called AMS. and ask what Amp would work well with my set up. I was told to go with the QSC GX5 It was shipped in 2 days, I hooked it up today and the damn thing is killer. It has all the power i need for my BBQ's out side. I'm very happy with the service From AMS. I will be buying more things soon. Thank you guys for all you have done.
David Smith Submitted: 10/9/2017
Product Rating
This is a awesome product
What is your opinion of this product?
Awesome very clean sound a lots of power
Alkie Submitted: 7/22/2017
Product Rating
High quality at a low price!
What is your opinion of this product?
This is my 2cnd GX5. I was so impressed with the first, I had to order another. There's not a lot of bells and whistles here, just very good sound, easy to use, and light weight. I use them to power 4 monitor wedges, couldn't be happier!
David Locklear, Submitted: 9/11/2015
Product Rating
Durable Quality
What is your opinion of this product?
Love this amp. I use it 90-110 times a year. You can bet I am using it tonight. Small and large shows as Monitor and mains amp. Always receive positive comments on sound. Good Power for what I do. Bout to step up to the GX7. This is one sweet amp. Buy it and you will be pleased.

AMS Rocks
DJ Deveneer from Arizona Submitted: 2/29/2012

DJ "Dev" from Arizona
Ben from PA Submitted: 2/2/2012

Awesome Amp
8 Payments! 0% Interest!
8 Easy Payments! Limited Time!
No Special Credit Card Application - 0% Interest! Your credit card will be billed in 8 equal payments, every 31 days, starting on the day your order is shipped. 8 Payment plan will need credit approval. Applies to new items only.
0% Interest Payment Plans

8 Payments of
$359.95 - $399.99
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