QSC GX7a Stereo Power Amplifier

Extraordinary weight to power ratio.




The most powerful of the GX family of QSC power
amps, the QSC GX an ideal power amp 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 represents real value.

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.

The GX7a uses 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.

The GX7 also features the road-proven
PowerLight supply to the Class H output section, for more overall output
power and additional weight savings. The result is one of the highest
power-to-weight ratios in the industry. A low-noise variable-speed fan
with rear-to-front airflow keeps amplifiers and racks cool. As always,
GX Series amplifiers are fully protected from the usual hazards of the
trade, ensuring stable performance and long life.

GuardRail™
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.






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 - 15.5 lb.
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




For budget, power and ease of transport, buy today.







GX7a Stereo Power Amplifier Specifications:

8 ohms / 1 kHz (both channels driven) 725 W
8 ohms / 1 kHz (single channel driven) 800 W
4 ohms / 1 kHz (both channels driven) 1000 W
4 ohms / 1 kHz (single channel driven) 1200 W
Distortion (1 dB below rated power, 1 kHz) 8 ohms: less than 0.02%
4 ohms: less than 0.05%
Signal to Noise (20 Hz - 20 kHz): 100 dB
Input Sensitivity: 1.2 Vrms
Voltage Gain (8 ohms): 36.1 dB
Output Circuitry: 2-tier Calss H
Power Requirements (1/8 power, pink noise at 4 ohms, 120V): 10.1A
Frequency Response 20 Hz - 20 kHz: +0, -1 dB
Dynamic Headroom (4 ohms): 2 dB
Input Impedance (ohms): 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
Height: 3.5" 2RU
Width: 19"
Depth: 10.1"
Weight Net: 15.5 lb.
Agency Approvals UL, CE, RoHS/WEEE Compliant








*Estimate Shipping between 5 - 12 weeks, or please call (083) 497-2227 for a faster air freight service with special price rate.


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