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425 Watt @ 4 OHM Power Amp


The QSC GX3 power amplifier delivers maximum performance and portability at a great price, offering easy hookup and adjustments, excellent audio quality and solid reliability. The GX3 is ideal for speakers in the 300-watt (Program) range.

The QSC GX3 boasts premium toroidal power transformers for reliable performance. Its 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 happy, without unprofessional distortion levels or shutdowns.

The QSC GX3 sports a Subwoofer/satellite 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.

QSC GX3 Features:
• Power levels matched to the most popular speakers used by entertainers
• Power levels: 8 ohms / 1 kHz (both channels driven) 300 W; 8 ohms / 1 kHz (single channels driven) 350 W; 4 ohms / 1 kHz (both channels driven) 425 W; 4 ohms / 1 kHz (single channels driven) 500 W
• Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems
• Inputs: XLR, 1/4" TRS and phono input connectors for compatibility with any source
• 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
• Minimum depth chassis (10.1" / 257 mm) fits in compact, inexpensive effects racks
• Less than 30 lbs (13.5 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
• Front panel LEDs monitor Power, Signal and Clipping
• Subwoofer/Satellite crossover built-in

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