QSC GX 3

Power Amplifier

  • Power: 2x 425 W / 4 Ohm
  • Inputs channel 1 and 2: 2x XLR balanced, 2x RCA and 2x 6.3 mm stereo jacks
  • Outputs: Speaker Twist combo jacks to 6.35 mm jack, 2 x screw terminals
  • 2 Rasterised gain controls for precise adjustment
  • Frequency range: 20 - 20,000 Hz
  • Signal / noise ratio: 100 dB
  • Integrated switchable crossover
  • Guard rail technology
  • Protects against overheating and overloading without disconnecting
  • Protective circuits and thermal fuses
  • Detachable power cable
  • Very low installation depth and low weight
  • Dimensions (W x H x D) 483 x 89 x 257 mm
  • Format: 19" / 2 U
  • Weight: 12.1 kg

Further Information

Power (4 Ohms) per Channel 425 W
Channels 2
Rack Units 2 U
Amp Class Class AB
2 Ohm stable No
DSP/Crossover Yes
Convection cooling No

Come up with your own creative bundle and save

If you order this product together with others as part of a bundle, you can save up to 8 % additionally!
QSC GX 3 + the t.amp E-800 + the t.racks DSP 26 +
5 more
Configure bundle now
starting from 715 €
Configure bundle now
starting from 359 €
89 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.6 /5
  • handling
  • features
  • sound
  • quality
Total
handling
features
sound
quality
Good installation amp, reliable at a good price
THoward, 09.01.2020
We used one of these amps to replace a Crown digital which had failed in a typical digital way and was facing a serious repair bill. It was recommended to us as being a tried and tested amplifier design based on tested technologies to be long lasting, robust and reliable in true QSC fashion. It hasn't disappointed and has been running 24/7/365 for 18 months in that installation now without ever missing a beat.
The fan control keeps it quiet under normal operation. The sonic properties of the amp are well covered by the other reviews here and I agree with them, but in our application ease of installation, cost and long term reliability and repairability were our main interests and the amp performs very well against those needs.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Total
handling
features
sound
quality
Really nice low cost amp
Jason7773, 27.11.2015
I've used higher end and much more expensive QSC models in the past and had until now tended to use Yamaha P3500/5000 & 7000 for low cost jobs. The first GX model I purchased was a GX5 on a bit of a punt as I've known some very good high end manufacturers really miss the mark producing entry level products. But it did not disappoint, so much so I bought two of these GX3s shortly afterwards to replace some Behringer power amps. Hands down these beat the nearest equivalent Behringer models by a mile and are even slightly better than the Yamaha P series. The sound is very open and clean with very good stereo image for a PA amplifier. In a multi speaker set up with 2xGX3 1xGX5 driving two mains, two fills and two subs I didn't have any problems setting up and noticed no phase issues that appeared amplifier related i.e that couldn't be accounted for by position and acoustics. You can drive these pretty hard and they stay quite linear up to high levels and distort in a tolerable way as you approach the limit of their ability. Many amps I've used in this price range are not so forgiving and run out of steam very sharply. I will be buying more of these in the future.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Total
QSC quality at a great price
Robert582, 15.05.2013
This was used for an install of an A/V system in a school. The systems main speakers needed to be ultra reliable and having used higher spec QSC amps in the past I was extremely happy to find one at this price. The performance (although not quite up there with pro models) was amazing. It was far cleaner and had a more open sound when compared to other models in its price band. Even though it has a relatively low output it maintained a good amount of clean headroom (even when driven fairly hard) and kept a fairly linear tonality. I would definitely use and spec this range of amps again.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
Total
handling
features
sound
quality
Great amp for small systems
01.09.2016
I use this as a high amp in a 3 way system but it would be plenty of power for a small full range system for house parties and small gigs. Sound quality and power is excellent as you would expect from QSC. i compared this amp to the Behringer iNuke 3000 which claims twice the power and this amp went louder before clipping. Worth the extra money. Only down side is it is very heavy compared to the class d amplifiers but is still fairly compact and fits into an effects rack. Overall I'm very happy with this purchase.
Helpful · Not helpful · Report
Report rating…

Do you believe this rating to be inaccurate or unacceptable for some reason?

Send report
315 €
Free shipping incl. VAT
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Share This Product
Your Contacts
Phone: +49-9546-9223-35
FAX: +49-9546-9223-24
Online Guides
PA-Amps
PA-Amps
You could sum up the whole idea of a PA power amplifier in a single word - sound. The power amp is a crucial part of a musician’s live sound.
 
 
 
 
 
Downloads
Downloads
 
 
 
 
 
test results:
Offers include VAT and are valid as long as stocks last. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
Recently Viewed
Audio-Technica AT-LP120X USB Silver

Audio-Technica AT-LP120X USB Silver, Direct Drive Turntable, professional turntable, Fully manual operation, DC servo motor, Professional anti-resonance, die-cast aluminium platter with felt mat, selectable 33/45/78 RPM speeds, S-shaped tonearm Adjustable dynamic anti-skate control, Pitch Variation +/-8% or +/-16%, Convert records...

(1)
Recently Viewed
Modal Argon8

Wavetable synthesiser 8-Voice polyphonic, 37-Key velocity sensitive keyboard (FATAR TP9 / S) with aftertouch, 120 Wavetables divided into 24 banks of 5 morphable waveform sets, 28 Static wavetable processors, 32 Wavetable oscillators, 4 Per voice with 8 types such...

(1)
Recently Viewed
Soundbrenner Core

4-in-1 Smart music tool in clock format 4 Functions: Watch, vibrating silent metronome, magnetic tuner and decibel meter, You always have your tools with you, whether you're practicing at home, recording in the studio or even performing on stage.,...

(1)
Recently Viewed
Novation Launchpad Pro MK3

Novation Launchpad Pro MK3; Grid-Controller for Ableton Live, other Music Software and external Hardware; 64 velocity- and pressure-sensitive Grid-Buttons with RGB- Background lighting; 4-Track Sequencer with 32 Steps; Accord Mode; dynamic Note- and Scale Mode; 8 User Mode with Components-Editor;...

Recently Viewed
Aston Microphones Origin Black Bundle

Large Diaphragm Condenser Microphone Liimited edition, Polar pattern: Cardioid, Frequency range: 20 - 20000 Hz (+/- 3dB), Maximum level: 138 dB, -10/0 dB pad switch, Low-cut filter 80 Hz, Requires 48 V phantom power, Integrated pop filter, Stand flange...

(1)
Recently Viewed
Varytec Colors SonicStrobe

Varytec Colors SonicStrobe; LED stroboscope with ambient effect; Over 200 SMD 5730 LEDs provide bright and dynamic strobe and blinder effects; In addition, more than 140 SMD5050 RGB LEDs provide color accents in the background; special surface of the reflectors...

Recently Viewed
Blackmagic Design MC BiDirectional SDI/HDMI

Blackmagic Design Micro Converter BiDirectional SDI/HDMI without PSU; compact converter for SDI and HDMI signals up to 1080p; multi-rate 3G-SDI inputs and outputs; automatically recognizes SD and HD formats; Connections: SDI video inputs: 1 connection for SD, HD or 3G-SDI;...

Recently Viewed
Yellowtec iXm Podcaster

Recording Microphone Specially developed for voice recordings, Ideal for podcasts, Dynamic microphone head of the iXm PRO Line with cardioid polar pattern, LEA DSP Engine ensures optimal audio levels regardless of the recording environment, Quick and easy operability without...

Recently Viewed
IK Multimedia iRig Pro Duo I/O

IK Multimedia iRig Pro Duo I/O; audio interface for iPhone, iPad, Android, Mac and PC; ultra-compact housing for portable use; 2 combined mic / instrument inputs with combo input jacks; 2 high-quality microphone preamplifiers with individually adjustable gain and phantom...

Recently Viewed
Arturia KeyLab Essential 88

MIDI Master Keyboard USB MIDI keyboard with 88 velocity sensitive keys, 8 Velocity sensitive pads with aftertouch, 1 Clickable encoder, 9 Rotary knobs, 9 Faders, 13 Buttons, Transport section with 4 function keys, LC Display, Pitch and modulation wheel,...

Recently Viewed
Roland GO:LIVECAST

Roland GO:LIVECAST; Live Streaming Studio for Smartphones; easy to handle combination of hardware and app for creating professional Webcasts; compatible with Twitch, Facebook Live, YouTube, and other major streaming platforms; three microphone inputs: build-in microphone with reverb-effect, XLR/TRS combo-input (switchable...

Recently Viewed
Blackmagic Design MC HDMI-SDI

Blackmagic Design Micro Converter HDMI-SDI without PSU; compact converter from HDMI to SDI signals up to 1080p / 60; multi-rate 3G-SDI connections; automatically recognizes SD and HD formats; Connections: Input: HDMI Type A; Output: 2x SDI; reclocking; Power supply via...

Give Feedback
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.