The QSC GX5 Stereo Power Amplifier, a robust yet lightweight amp ideal for live sound reinforcement and fixed installations. This innovative amplifier packs a punch, delivering a combined 1,250 watts at 8 ohms across two channels, allowing you to drive multiple speakers with pristine audio. With its highly efficient Class-D technology, the GX5 runs cool while providing more than enough power for small- to mid-sized venues. Intuitive rear-panel controls make dialing in your perfect tone a breeze.
Class-D Amplification Means Powerful, Efficient Performance
The GX5 harnesses QSC’s advanced Class-D amplifier technology to produce high power levels from an ultra-lightweight, fanless design. Each channel cranks out 625 watts at 8 ohms, for a total of 1,250 watts. This Class-D efficiency also results in an amplifier that stays cool during extended use, thanks to its built-in heat sinks. The GX5’s lightweight, compact form factor makes transporting and mounting the amp for live shows or permanent installations simple.
Flexible Connectivity for Any Application
The GX5 offers versatile connectivity for driving a variety of speaker configurations in live or installed settings. Each channel provides an XLR, 1/4″ and barrier strip input, as well as binding post outputs to connect multiple speakers. The rear panel also sports an RJ45 Ethernet port for remote monitoring and control via QSC’s Q-Sys platform. With a host of input and output options, the GX5 works seamlessly in any audio environment.
Intuitive Interface For Quick Set Up
Getting great sound from the GX5 is made easy thanks to its straightforward rear-panel controls. Each channel features independent gain knobs to dial in the optimal level for your inputs. LED meters provide visual feedback for setting gain levels. The rear panel also includes a ground lift switch and master level control for the main outputs. With an interface designed for plug-and-play operation, the GX5 lets you focus on your performance instead of wrestling with overly complex controls.
Rugged Reliability For Demanding Applications
As with all QSC products, the GX5 is built to handle the most demanding live sound and installation needs. Its steel chassis and aluminum faceplate are durable yet lightweight. Advanced protection circuits guard against short circuits, DC faults, overheating, and overload. With a 3-year warranty and a reputation for rock-solid reliability, the GX5 delivers power you can depend on for any application.
- 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″ 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 lb. (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
- 8 ohm / both channels driven / 1kHz: 500W
- 8 ohm / single channel driven / 1kHz; 600W
- 4 ohm / both channels driven / 1kHz; 700W
- 4 ohm / single channel driven / 1kHz; 850W
- 2 ohm / both channels driven / 1kHz: 350W
- Distortion (typical): 20Hz–20kHz: 1dB below rated power 8 ohm: less than 0.05% / 4 ohm: less than 0.1%
- Signal to Noise: (20H–20kHz) 100dB
- Input Sensitivity: 1.2 Vrms
- Voltage Gain (8 ohm): 34.4dB
- Output Circuitry: 2-tier Class H
- Power Requirements (1/8 power, pink noise at 4 ohm, 120V):6A
- Frequency Response: 20 Hz–20kHz, +0, 1dB
- Dynamic Headroom (4 ohm): 2dB
- Damping Factor: 100
- Input Impedance (ohm): Greater than 20k (balanced)
- Maximum Input Level: +24dB (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 -35dB
- Blue Power LED, AC on
- Rear Panel Controls: Full Range / Crossover switch
- 100 Hz, 3rd order LP (sub), 2nd order HP (top)
- Dimensions (HxWxD): 3.5″ (2RU) x 19″ x 10.1″ (89 mm x 483 mm x 257 mm)
- Weight Shipping/Net: 31 (14kg)/26 lb. (12 kg)
- Agency Approvals: UL, CE, RoHS/WEEE compliant
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