QSC GX3 | 2-channel Amplifier | 300w 8ohms

GX3

300-Watt 8-Ohm Power Amplifier

Audio professionals in need of a high-quality amplifier should check out the GX3 Power Amplifier, a 2 RU audio amplifier that's designed to provide power, portability, and professional sound quality at an affordable price. The GX3 features 300 watts of power at 8 ohms (both channels driven) in a design that's easy to install and delivers flexible features. The rear panel features balanced XLR and 1/4" phone inputs as well as unbalanced RCA phono inputs for complete compatibility with professional and consumer audio gear.

The outputs feature speaker binding posts and speakON connections. Detented gain controls provide precise level settings. QSC's GuardRail protection delivers full peak power while preventing detrimental overloads due to excessive clipping or overheating. In addition, a built-in 180 Hz crossover splits low- and mid-frequency signal between the left and right channel. This is ideal for driving subwoofers. The GX3 is a feature packed, lightweight amplifier that's suitable for midsize venue installation, musicians, mobile DJs, etc.

• Power levels matched to the most popular speakers used by entertainers
• Optimized for maximum real-world headroom into 4- 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") fits in compact, inexpensive effects 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 the show
• Front-panel LEDs monitor power, signal, and clipping
• Subwoofer/satellite crossover built in

Specifications

• Number of Channels
  • 2
• Amplifier Power Rating
  • 8 Ohms:
    • 300 W Both Channels Driven (1 kHz, 0.1% THD)
    • 350 W One Channel Driven (1 kHz, 0.1% THD)
  • 4 Ohms:
    • 425 W Both Channels Driven (1 kHz, 0.1% THD)
    • 500 W One Channel Driven (1 kHz, 0.1% THD)
  • 2 Ohms:
    • 200 W Both Channels Driven (1 kHz, 1% THD)
• Amplifier Class
  • Class-B
• Load Impedance / Voltage
  • 4 / 8 Ohms
• Analog Audio I/O
  • 2x Combo speakON-1/4" NL4 Output
  • 2x Binding Post Pair 2-Pin Output
  • 2x XLR 3-Pin Balanced Input
  • 2x 1/4" TRS Balanced Input
  • 1x 2RCA TS Unbalanced Input Show More
• Rackmount Size
  • 2 RU
• Protections
  • DC Fault, Open Circuit, RF, Short Circuit, Thermal
• Frequency Response
  • 20 Hz to 20 kHz +0/-1 dB
• Input Sensitivity
  • 1.2 Vrms
• Input Impedance
  • >20 Kilohms (Balanced)
• Max Gain
  • 32.2 dB
• Max Input Level
  • +24 dBu / 16 Vrms
• SNR
  • 100 dB
• Distortion
  • < 0.02% (1 kHz, at 8 Ohms, at Rated Power)
  • 0.05% (1 kHz, at 4 Ohms, at Rated Power)
• Crossover
  • Low-Pass: 100 Hz, 18 dB/Octave
  • High-Pass: 100 Hz, 12 dB/Octave
• Limiting
  • Yes
• AC Input Power
  • 120 VAC, 60 Hz AC
• Power Connector
  • 1x IEC 15 A / NEMA 5-15
• Current Consumption
  • 120 VAC, 4 Ohms:
    • 6.3 A (1/8 Power)
    • 0.2 A (Idle) 
• Display & Indicators
  • Red LED (Clip)
  • Green LED (Signal)
  • Blue LED (Power)
• Cooling
  • 1x Fan
• Certifications
  • CE, RoHS, UL, WEEE
• Dimensions
  • 19.0 x 3.5 x 10.1" / 483.0 x 89.0 x 257.0 mm
• Weight
  • 27 lb / 12.2 kg