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 GX3 Stereo Power Amplifier Specifications:
Power Rating:
8 / both channels driven / 1 kHz: 300 W
8 / single channel driven / 1 kHz: 350 W
4 / both channels driven / 1 kHz; 425 W
4 / single channel driven / 1 kHz; 500 W
2 / both channels driven / 1 kHz; 200 W
Distortion (typical): 20 Hz - 20 kHz: 1 dB below rated power 8 : less than 0.05% / 4 : less than 0.1%
Signal to Noise: (20 Hz - 20 kHz) 100 dB
Input Sensitivity: 1.2 Vrms
Voltage Gain: (8 ) 32.2 dB
Output Circuitry: Class B
Power Requirements: (1/8 power, pink noise at 4 , 120 V) 6.3A
Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
Dynamic Headroom (4 ): 2 dB
Damping Factor: 100
Input Impedance ( ): Greater than 20k (balanced)
Maximum Input Level: +24 dB (16 Vrms)
Input Connectors (each channel): 3-pin XLR and 1/4" TRS, balanced, parallel Phono, unbalanced
Output Connectors (each channel) Speakon®, 1/4", 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 (HWD): 3.5" (2RU) x 19" x 10.1" (89 mm x 483 mm x 257 mm)
Weight: Shipping / Net 30 (13.5 kg) / 25 lbs (11.5 kg) Agency Approvals: UL, CE, RoHS/WEEE compliant
QSC GX3 Stereo Power Amplifier Features:
Power levels matched to the most popular speakers used by entertainers
Optimized for maximum real-world headroom into 4 and 8 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
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-in