QSC
RMX 5050a Power Amplifier
Best high-output power amplifier for professional touring and mobile sound systems.
The QSC RMX5050a is a robust 2-channel power amplifier engineered for demanding professional sound reinforcement. Its efficient Class H design delivers sustained high power output, making it ideal for touring and mobile entertainment applications. This 3RU unit ensures superior audio fidelity and speaker protection with independent limiters and selectable low-frequency filters. Featuring comprehensive connectivity with balanced XLR and TRS inputs, alongside versatile Speakon and binding post outputs, the RMX5050a integrates seamlessly into various sound systems, offering legendary QSC reliability and road-proven performance.
$2299.99
Owner Satisfaction
4.7
/ 5
Category Rank
421
/ 1684
#421 in Power Amplifiers
Price vs Category Average
-72%
Below average
Channels
Dual-Channel
/ Dual-Channel
Who it's for
- Professional sound engineers needing massive headroom for demanding subwoofers
- Venue owners requiring reliable protection for high-end speaker investments
- System installers seeking flexible connectivity for diverse audio setups
Who should skip it
- Modern technicians requiring built-in digital signal processing and EQ
- Mobile DJs needing lightweight gear for frequent transport
- Engineers working in quiet environments sensitive to fan noise
Performance breakdown
Power Output
Massive headroom handles the most demanding professional sound reinforcement tasks easily.
Build Durability
Road-proven chassis construction survives the rigors of constant touring and transport.
Thermal Efficiency
Class H design keeps temperatures manageable during extended high-output performance sessions.
Connectivity Versatility
Comprehensive input and output options integrate seamlessly into any professional rig.
Speaker Protection
Independent limiters and filters provide essential safeguards for your valuable drivers.
Portability
The substantial seventy-five pound weight makes single-person setup a significant challenge.
Key Specs
Channels
Dual-Channel
Chassis
3RU, 19-inch Rack-Mount
Weight
75 lb
Dimensions
19 in (Width) x 5.25 in (Height)
Amplifier Class
Class H
Output Impedance Support
Down to 2 ohms stereo
Inputs
Balanced XLR, 1/4” TRS, Barrier Strip
Outputs
Binding Post, Neutrik Speakon
Features
- Delivers extremely high sustained power
- Highly efficient Class H amplifier design
- Independent protection circuits per channel
- User-defeatable clip limiters reduce distortion
- Selectable low-frequency filters protect speakers
- Easy-access front-panel gain controls
- Robust XLR and Speakon connectivity
- Designed for long-term reliability
What customers say
The QSC RMX 5050a is highly regarded as a dependable workhorse for professional audio users. Customers consistently praise its immense power, noting its ability to drive demanding speaker arrays without distortion, even under extended use. Reviewers emphasize its exceptional build quality, often describing it as extremely durable for demanding live applications. The amplifier offers significant value, delivering performance comparable to much costlier competitors, making it a staple for budget-conscious professionals needing high wattage. The main recurring point is its substantial weight, a common trade-off for its robust design. Overall, it is viewed as a reliable investment providing consistent, professional results.
Know before you buy
Yes, the RMX 5050a is designed to operate reliably with loads down to 2 ohms per channel, making it a versatile choice for driving demanding speaker configurations.
The unit features independent limiters for each channel to prevent clipping, as well as selectable low-frequency filters that help protect your speakers from excessive excursion and potential damage.
Yes, the RMX 5050a is bridgeable, allowing you to combine the power of both channels into a single output for high-power applications like driving a large subwoofer.
This amplifier occupies 3 rack units (3RU) of space in a standard 19-inch equipment rack.
It provides comprehensive connectivity, including balanced XLR, 1/4-inch TRS, and barrier strip inputs, ensuring compatibility with a wide range of professional audio mixers and processors.
The unit weighs 75 pounds. Given its weight, it is highly recommended to use a sturdy, professional-grade rack case and ensure proper support for the chassis during transport.
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