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QSC GX3 300w Power Amplifier
GX Series amplifiers are ideal for professional entertainers who require maximum performance and portability on a limited budget. The hallmarks of the QSC brand - professional audio quality, meticulous engineering, precision manufacturing and long-term reliability - are all intrinsic to GX. Add contemporary styling, multiple input/output options, light weight, and advanced protection circuitry, and the GX Series clearly represents real value - something everyone can use.
GX amplifiers deliver just the right amount of power to the most popular speakers used by entertainers. Typically, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker's Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating.
The GX3 is ideal for speakers in the 300 watt (Program) range, while the GX5 provides full performance for 500 watt (Program) speakers. The GX7 outputs 725 watts into an 8 ohm load. Owners of popular 4 ohm loudspeakers (such as dual-woofer, two-way models) will find the 700 watt (4 ohm) power of the GX5 an ideal match while the GX7's 1000 watts will very capably power many of today's popular subwoofers or two typical 8 ohm speakers per channel.
Technical Notes
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.
To view full specifications of this product please see link below:
http://qscaudio.com.s3.amazonaws.com/downloads/specifications/GX_specs.pdf
Model:GX3 Specs
Watts per Channel
- 8ohms/ 1kHz (both Channels Driven): 300W
- 8ohms/ 1kHz (single Channel Driven): 350W
- 4ohms/ 1kHz (both Channels Driven):425W
- 4ohms/ 1kHz (single Channel Driven):500W
- DISTORTION (1dB below rated power, 1kHz): 8ohms:less than 0.02% ; 4ohms: less than 0.05%
- SIGNAL TO NOISE (20Hz-20kHz): 100dB
- INPUT SENSITIVITY: 1.2Vrms
- VOLTAGE GAIN(8ohms):32.2dB
- OUTPUT CIRCUITRY: Class B
- POWER REQUIREMENTS(1/8 power, pink noise at 4ohms, 120V): 6.3A
- FREQUENCY RESPONSE: 20Hz - 20kHz, +0, -1dB
- DYNAMIC HEADROOM(4ohms): 2dB
- INPUT IMPEDANCE: Greater than 20k (balanced)
- MAXIMUM INPUT LEVEL: +24dB (16Vrms)
- 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: Gain Controls, 21 detents
- INDICATORS: 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; 100Hz, 3rd order LP (sub), 2nd order HP (top)
- DIMENSIONS: H(89mm) x W(483mm) x D(257mm)
- WEIGHT: Net: 12.1kg