QSC GX3 Power Amplifier

Get Easy Operation and Peace of Mind with the QSC GX3 Power Amplifier

Power levels matched to the most popular speakers. Inputs: XLR, 1/4-inch TRS and phono. Outputs: Speakon® combo and binding posts.

• Optimized for maximum real-world headroom into 4- and 8-ohm speaker systems
• Inputs: XLR, 1/4-inch TRS and phono input connectors for compatibility with any source
• Outputs: Speakon® combo accepts 1/4-inch (TS) plugs or Speakon 2- and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
• Minimum depth chassis (10.1-inch / 257 mm) fits in compact, inexpensive effects racks
• Lightweight - GX3 and GX5 less than 26 lb (12.5 kg). GX7 only 15.5 lb (7 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

SPECIFICATIONS

• Number of Channels:2
• Power Class:Class B
• Watts/Side @ 8 ohms:300W
• Watts/Side @ 4 ohms:425W
• Inputs:2 x XLR, 2 x 1/4", 2 x RCA
• Outputs:2 x SpeakON, 2 x Binding Posts
• Cooling System:Variable-speed fan with rear-to-front airflow
• Rack Spaces:2U
• Height:3.5"
• Depth:10.1"
• Width:19"
• Weight:27 lbs.
• Manufacturer Part Number:GX3

We are Musictoner Musictoner

Since 1958, Chuck Levin’s Musictoner has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.