QSC GX3 Stereo Power Amplifier

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The GX3 is a lightweight, professional stereo amplifier and popular choice for live sound applications. The GX5 power level is matched for general use with some of the most popular passive speakers. This versatile amplifier provides options for Inputs, including: XLR, 1/4-inch TRS and phono. Outputs: Speakon® combo and binding posts.

 

GX3 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 two poles only). Binding posts support all other speaker wiring systems
• Minimum depth chassis (10.1-inch / 257 mm) fits in compact, inexpensive effects racks
• Lightweight - GX3 and GX5 less than 26 lb (12.5 kg). GX7 only 15.5 lb (7 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-in

 

Specifications:

• 8Ω continous, both channels driven
• 300 W
• 4Ω continous, both channels driven
• 425 W
• Distortion (1 dB below rated power, 1 kHz)
• 8 ohms: less than 0.02%
  4 ohms: less than 0.05%
• Signal to Noise (20 Hz - 20 kHz)
• 100 dB
• Input Sensitivity
• 1.2 V rms
• Voltage Gain
• 32.2 dB
• Output Circuitry
• Class B
• Power Requirements (1/8 power, pink noise at 4 ohms, 120V)
• 6.3 A
• Frequency Response
• 20 Hz–20 kHz, +0, -1 dB
• Dynamic Headroom (4 ohms)
• 2 dB
• Input Impedance
• Greater than 20 kΩ (balanced)
• Maximum Input Level
• +24 dBu (16 V rms)
• Input Connectors (each channel)
• 3-pin XLR and 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 below clipping.
  Blue POWER LED, AC on
• Rear Panel Controls
• Full Range / Crossover switch.
  100 Hz, 3rd order LP (sub), 2nd order HP (top)
• Product Dimensions (H×W×D)
• 89 × 483 × 257 mm
  3.5 × 19 × 10.1 in
• Net Weight
• 12.1 kg / 27 lb
• 4 + 4 ohms, 1/8 power 1
• 6.3 AC amps

Model:	GX3QSC
Manufacturer:	QSC