QSC Audio GX3 300, GX5 500 user manual Welcome, Unpacking

GX POWER AMPLIFIER SERIES

Professional Power Amplifiers

WELCOME

Thank you for purchasing a QSC Audio amplifier. The GX Series is the latest in a long line of hard-working, low cost amplifiers, designed to produce the best possible results for a wide range of users. In most cases, you can plug and play with no surprises, but for best results, we recommend you review the enclosed user guide.

UNPACKING

Confirm that the amplifier has no visible shipping damage. Confirm that amplifier has the correct AC cord and voltage rating for your region (See rear panel, Serial Number plate). It is best to keep the carton in case the amplifier needs to be returned, at least until it has been tested.

SUPPORT AND SERVICE

QSC Audio Products maintains a world-wide network of distributors and service centers. These local agencies will be

able to answer your questions and take care of any problems.

QSC WEBSITE

Our website, www.qscaudio.com, is factory-maintained and supported in multiple languages. Visit frequently for new announcements, typical questions, and other user information.

IMPORTANT SAFETY PRECAUTIONS

QSC products are designed for safe operation, and have been certified by recognized product safety agencies to meet all normal standards for this type of product. However, dangerous voltages and power levels exist within the covers of this amplifier. The user is requested to study the precautions in this manual. If the product has been dropped, dented, soaked, or appears to have loose parts inside, the risk of shock is increased. Unplug the AC cord, and take the product to qualified service personnel for inspection and repairs.

EN

FEATURES

Power levels matched to the most popular speakers used by entertainers.

Optimized for maximum real-world headroom into 4Ω and 8Ω 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 (only 10.1” / 257 mm) fits in compact, inexpensive effects racks.

Light weight – less than 26 lbs (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.

POWER RATINGS

Watts at 0.1% clipping, both channels driven

Model	8 ohms	4 ohms	2 ohms*
GX3	300	425	200
GX5	500	700	350

*NOTE: 2-ohm loading is not recommended for high power use. To avoid protective limiting, use only at low levels.