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QSC KLA 12 12-Inch, 2-Way Active Line Array Speaker

QSC’s KLA Series brings the power and sophistication of a line array system into an easy-to-use product significantly redefining the line array product category. Sam Ash Direct has the guaranteed lowest price and fast free, shipping.


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MSRP: Old Price $2,499.99 Discounted Price $1,999.99 Save : $500.00 (20%)
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MSRP: Old Price $2,499.99 Discounted Price $1,999.99 Save : $500.00 (20%)
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The QSC KLA12 12-inch, 2-way loudspeaker features a highly efficient built-in 500-watt by 500-watt power amp module. This efficient design enables up to five KLA models (any combination of KLA12 and KLA181) to be driven off of a single 15 amp, 120-volt electrical circuit.

Housed in a rugged ABS enclosure that results in both lightweight and long-term durability, the KLA12 features a 12-inch low frequency transducer coupled with a 1.75-inch compression driver. Designed to be used exclusively as a fixed arcuate line array, each KLA12 is set at a 90° horizontal by 18° vertical splay angle, allowing 90° vertical coverage arrays to be configured using only five boxes (most other solutions require six).

QSC KLA12 enclosures also feature the Tilt-Direct™ 35mm pole socket allowing the loudspeaker to be aimed downward 9° for the best audience coverage.

KLA's unique self-contained SOLO™ (Single-Operator Logistics) Rigging System enables users to quickly assemble (and disassemble) the line array in a fraction of the time without the need for special tools or external hardware.

The KLA12 Ar-Q™ (Arcuate Equalization) processing enables users to quickly tune the array, making appropriate frequency compensation adjustments based on the number of boxes. With the click of a dial, the user can select the total number of boxes deployed in the array resulting in an evenly balanced and accurate tonal curve. QSC's proprietary Intrinsic Correction™, first introduced with the WideLine™ Series, actively adjusts time, frequency and amplitude response to achieve a maximally flat bandpass target.



• 500 W x 500 W power module

• Rugged, ABS enclosure delivers light-weight durability

• SOLO™ Rigging System supports deployment without tools or external hardware

• Ar-Q™ Frequency Optimization quickly tunes the array with the click of a dial, adjusting for the appropriate number of boxes

• 10:1 design factor supports arrays of up to 480 lbs. (218 kg) 5 x KLA12 and 2 x KLA181

• 90° x 18° nominal coverage (requires only five boxes to configure a 90° x 90° array)

• High power, 12” low frequency driver provides extension down to 44Hz without subwoofers

• Extensive DSP further enhances and protects performance

• 1.75” diaphragm compression driver delivers clear and powerful high-frequency reproduction

• powerCON® Input and Thru connections

• Tilt-Direct™ pole mount assists directivity in single-unit applications

Get your QSC KLA 12 12-Inch, 2-Way Active Line Array Speaker today from Sam Ash Direct and enjoy the confidence that comes from fast, free shipping, the guaranteed lowest price and our 45/60-day return/price protection policy.

Things You Will Get:

  • KLA 12 Speaker

I recomwnt this product to all dj's and band really good


Nice spoeaker and heavy



Easy to use speakers


Top of the line speakers that offer a great 2 way design. They are easy to set up and adjust quickly to accommodate any size venue. One of the best sounding speaker I have ever heard. I am A staff reviewer at Sam Ash Music.




Perfect for Concerts


QSC is become one of the leading names in audio and the KLA12 definitely shows why. These are perfect for huge concerts because they have amazing sound and are very sturdy. This is a hands-on product review from Tamir @ Sam Ash Edison


Edison, NJ


Amazing and Easy Set-Up


The QSC KLA12 sound amazing in an array of two or three units per side. The built in DSP for setting up the array size is very simple, QSC has the KLA12 file setup and ready for download on the website so you can model the sound for an event beforehand. You can setup anything from a 1 to 5 cabinet array in seconds. DSP & Gain controls are so simple someone that has never setup the system before can do it. Great build quality, solid construction. For what you get well worth the price. The look alone of a 3 speaker array will wow the audience before they even hear the amazing sound. This is a real hands-on product review from Rick @ Sam Ash Phoenix.


Phoenix, AZ


Sweet Speaker


Great sound. Easy to Use. Easy to setup. Portable and easy to carry. Totally worth the money. Lots of FUN! I am a Sam Ash Reviewer.



An Exquisite Line Array!


I recently installed these boxes, three per side in a 300 seat theatre room. Installation was extremely easy and quick. The sound quality we were getting was incredible. There was detail in the mids and highs, and the low mids were super smooth. I would not hesitate installing more of these in the future. Exquisite! This is a real hands on product review from Warren @  Sam Ash Buffalo Grove


Chicago, Il


KLA 12 12-Inch, 2-Way Active Line Array Speaker

4.8 6


Warranty Info:

KLA 12 12-Inch, 2-Way Active Line Array Speaker

The manufacturer's warranty covers parts and labor for six years from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.

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