GX Series amplifiers are ideal for professional entertainers who require maximum
performance and portability on a limited budget. QSC designers, headed by Pat
Quilter, have optimized output and appearance while reducing raw material cost
and weight. It's all here – dramatic styling, easy hookup and adjustments,
excellent audio quality and QSC reliability.
GX amplifiers deliver just the right amount of power to the most popular
speakers used by entertainers. Most 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. Both models supply
maximum possible power to 4 ohm and 8 ohm loads. Owners of popular 4 ohm
loudspeakers (dual-woofer, two-way models and many subwoofers) will find the 700
watt (4 ohm) power of the GX5 an ideal match.
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.
The GX5 uses a Class H system, based on key elements of the PLX Series, almost
doubling power in the same size and weight. QSC design expertise allows the
output devices to shift from low-power to high-power rails in less than a
millionth of a second, ensuring that the output power is always right where it
needs to be without excess loss.
Both amplifiers use premium toroidal power transformers for reliable
"mid-weight" performance. A variable-speed fan moves air crosswise through the
amplifier, drawing cool air in over the power transformer, through the fan, and
then over the heat sink. This keeps the transformer cool and allows a full size
heat sink to fit in a down-sized chassis. As always, the amplifiers are fully
protected from the usual hazards of the trade, ensuring stable performance and
long life.
GuardRailâ„¢
GuardRail protection delivers full peak power while preventing detrimental
overloads. During excessive clipping, or extreme overheating, GuardRail reduces
gain just enough to preserve the integrity of the music, protect the speakers
and keep the audience excited, without unprofessional distortion levels or
shutdowns.
Subwoofer/Satellite Crossover
A subwoofer reduces strain on the full-range speaker, allowing it to play
louder, or letting a smaller speaker do the same job. The GX Series supports
this mode with a Crossover switch that splits the full-range input entering Ch
1, sending 20 Hz - 100 Hz to the sub (Ch 1) and 100 Hz - 20 kHz to the top box
(Ch 2). The front panel gain controls balance the sub and top box, while
GuardRail optimizes peak power into the sub and top individually, for greater
musical impact and dynamic range.
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" 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
- GuardRailâ„¢ 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
| Model: |
GX3 |
| Manufacturer: |
QSC |
