• Qsc Gx3 Power Amplifier

Qsc Gx3 Power Amplifier

Joy by External Speakers For Tv
  • Power amp
  • QSC Power amp
  • Power amp 850w
3.0 out of 5
(33 customer reviews)

Product Description

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QSC GX3 Stereo Power Amplifier

The QSC GX3 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. It's all here – dramatic styling, easy hookup and adjustments, excellent audio quality and QSC reliability.

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 GX3 is ideal for speakers in the 300 watt (Program) range. The GX3 supplies maximum possible power to 4 ohm and 8 ohm loads.

Technical Note

The GX3 uses the latest evolution of the QSC Grounded Collector output system, for optimum cooling of the critical power transistors. A true Class B biasing system combines maximum thermal efficiency with excellent audio performance. 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.


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 - 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.

See our comparison chart to find out which GX Series Power Amplifier fits your needs.
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  • 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
  • XLR, 1/4" balanced and phono inputs for compatibility with any source
  • Speakon - 1/4" (TS) combo outputs, accepts 2-pole or 4-pole (connects 2 poles only)
  • Binding posts to support all other speaker wiring systems
  • Minimum depth chassis fits in compact, inexpensive racks
  • 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
  • Front panel LEDs monitor Power, Signal and Clipping
  • Subwoofer/Satellite crossover built-in

QSC GX3 Power Amplifier

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