QSC GX3 – 2-Channel 300W Professional Power Amplifier
QSC GX3 – 2-Channel 300W Professional Power Amplifier is backordered and will ship as soon as it is back in stock.
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QSC GX3 – 2-Channel 300W Professional Power Amplifier
Product Overview
The QSC GX3 is a two-channel professional power amplifier built for live sound, portable PA, and installed commercial audio. It delivers 300 watts per channel at 8 ohms, 425 watts per channel at 4 ohms, and 700 watts bridged into 8 ohms, providing dependable QSC power for small to medium passive loudspeaker systems. Lightweight and rack-mountable, the GX3 is a straightforward workhorse amplifier for venues that need clean, reliable amplification without onboard DSP.
Product Description
The GX3 offers balanced XLR and 1/4-inch inputs for compatibility with mixers and signal processors, and it can be bridged to mono for 700 watts into 8 ohms when a single high-power channel is needed for a subwoofer or distributed run. Its rack-mount chassis and front-panel controls make it easy to deploy in portable racks or fixed installations. For loudspeaker processing such as crossovers, EQ, and limiting in a single box, step up to the DSP-equipped QSC GXD4.
Key Features
- 300 W per channel at 8Ω — 425 W per channel at 4Ω for small to medium passive loudspeaker systems.
- 700 W bridged into 8Ω — Combine both channels for a single high-power output.
- Balanced XLR and 1/4-inch inputs — Standard professional signal connectivity.
- Rack-mountable chassis — Fits portable and installed equipment racks.
- QSC reliability — Proven amplifier platform for live sound and commercial installs.
Typical Applications
- House of worship
- Multi-purpose room
- Auditorium
- Training room
Technical Specifications
| Configuration | 2-channel power amplifier |
| Output power (8Ω) | 300 W per channel |
| Output power (4Ω) | 425 W per channel |
| Bridged output (8Ω) | 700 W |
| Inputs | Balanced XLR and 1/4-inch |
| Modes | Stereo / bridged mono |
Frequently Asked Questions
Can the GX3 be bridged to mono? Yes. Bridged into 8 ohms it provides 700 watts from a single output, useful for a subwoofer or high-power loudspeaker.
Does the GX3 have built-in DSP? No. For onboard crossovers, EQ, delay, and limiting, choose the QSC GXD4 instead.
What loudspeakers does it suit? Small to medium passive systems in live sound, corporate A/V, and installed commercial audio.
What about warranty and support? Coverage follows QSC's published warranty terms. Contact Creation Networks support for help selecting or configuring the amplifier.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
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