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Based on price data from 4 merchants for "QSC KLA12 KLA Series 12" Powered Line Array Speaker". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Imagine an array speaker that sets the stage for pristine sound and effortless setup. The QSC KLA12 KLA Series 12" Powered Line Array Speaker is a game-changer for live sound, combining formidable power with innovative design. This compact powerhouse is driven by a 500W x 500W power module, providing a total of 1000W to ensure your audience hears every note with clarity and punch. The KLA12's 12" low-frequency driver and 1.75" compression driver deliver a stunning frequency range from 44Hz to 20kHz, making it ideal for a wide array of venues, from concert halls to houses of worship.
Setting up your sound system has never been easier, thanks to the SOLO Rigging System, which allows for quick assembly without the need for tools or extra hardware. The Ar-Q Frequency Optimization feature ensures your array is perfectly tuned, automatically adjusting the EQ based on the number of units in your setup. This smart technology guarantees a balanced sound that covers the entire listening area uniformly.
Designed to withstand the rigors of live performance, the rugged ABS enclosure offers lightweight durability, while the Tilt-Direct pole mount facilitates optimal speaker positioning. With extensive I/O options including XLR and PowerCon connections, the KLA12 is as versatile as it is powerful. Whether you're building a small setup or a large array, the KLA12 promises uncompromising quality and ease of use.
Key Features:
- 500W x 500W power module
- Rugged ABS enclosure for lightweight durability
- SOLO Rigging System for tool-free setup
- Ar-Q Frequency Optimization for balanced sound
- 12" low-frequency driver and 1.75" compression driver
- Extensive DSP for enhanced performance
- PowerCon Input and Thru connections
- Tilt-Direct pole mount for single-unit applications
- 90° x 18° nominal coverage, supports arrays up to 90° x 90° with five units
- GuardRail circuitry protection and DEEP DSP for extended bass response
Product specs
| Powered | Yes |
| Power Configuration | Bi-amped |
| LF Driver Size | 1 x 12" |
| HF Driver Size | 1.75" |
| LF Driver Power Amp | 500W (Class D) |
| HF Driver Power Amp | 500W (Class D) |
| Total Power | 1000W |
| Inputs | 1 x XLR (line) |
| Outputs | 1 x XLR |
| Frequency Range | 44Hz-20kHz (-10dB) |
| Crossover Frequency | 1.8kHz |
| Maximum Peak SPL | 131dB |
| Horizontal Coverage Angle | 90 Degrees |
| Vertical Coverage Angle | 18 Degrees |
| Signal Processing | Ar-Q Array Equalization, Low Frequency Settings |
| Enclosure Material | ABS Thermoplastic |
| Mounting Options | Pole Mount1.37" socket, 3 x M10 Fly Points, SOLO Rigging System |
| Power Source | PowerCON In/Out (cable included) |
| Height | 15" |
| Width | 23.4" |
| Depth | 16.6" |
| Weight | 55 lbs. |
FAQs
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What is the power output of the QSC KLA12 speaker?
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The QSC KLA12 speaker features a bi-amped power configuration with a total output of 1000 watts, split equally between the low-frequency and high-frequency drivers, each powered by a 500-watt Class D amplifier.
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How does the QSC KLA12 handle frequency optimization?
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The QSC KLA12 uses Ar-Q Frequency Optimization, which allows you to quickly tune the array by adjusting for the appropriate number of boxes with a simple dial click, ensuring optimal performance.
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Can the QSC KLA12 be used for both small and large venues?
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Yes, the QSC KLA12 is versatile, featuring a 90-degree horizontal and 18-degree vertical coverage, making it suitable for both small and large venues, especially when configured in an array.
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What kind of mounting options does the QSC KLA12 offer?
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The QSC KLA12 provides multiple mounting options, including a pole mount with a 1.37" socket, three M10 fly points, and a SOLO Rigging System for easy deployment without tools.
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What type of input and output connections are available on the QSC KLA12?
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The QSC KLA12 is equipped with one XLR input and one XLR output, allowing for straightforward connectivity in professional audio setups.
Videos
CCI Solutions
QSC KLA Active Line Array System - In-Depth Review
Reviews
PROS
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Exceptional sound clarity and power for both indoor and outdoor events
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Consistent and even coverage in any seating or standing position
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Easy setup with intuitive DSP and gain controls
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Strong and durable build quality with secure Powercon connectors
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Excellent compatibility with other QSC products like KW181 subs
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Impressive sound throw distance, maintaining clear sound over long ranges
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Dramatic improvement in sound dispersion and clarity over point source speakers
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Flexible setup options from one to five cabinet arrays
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Simple to fly or stack, even with minimal personnel
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Highly praised for enhancing live performances and sound systems
CONS
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Flying the array can be challenging for some users
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about QSC KLA12 KLA Series 12" Powered Line Array Speaker.
Comparisons
Build quality
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Some older QSC models (1980-2005) are noted for durability, while newer models, especially those made in China, have faced reliability issues.
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Value and pricing
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The KLA12's price is considered steep compared to QSC’s own K or KW point source cabinets with similar performance.
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Features and functionality
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The QSC KLA12 likely includes a switch to control the blue LEDs, offering options for off, power, or signal modes.
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The LA112 includes variable splay angles and prediction software, distinguishing it from constant curvature arrays.
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Both KLA12 and LA112 can be flown, offering flexibility in installation options for future needs.
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User experience
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An owner paired a single QSC KLA12 on each side with four KD 118 subs, noting impressive performance that outmatched the subs.
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