A Closer Look at QSC

Active Loudspeakers on the Cutting Edge

Efficient Digital Power, Advanced DSP Circuitry, Innovative Design, and Proven Components Come Together for Excellent Sound. For nearly 50 years, QSC Audio Products have been designing and building some of the most innovative and reliable sound reinforcement equipment available. Based in Costa Mesa, California, QSC manufactures products for professional touring companies, permanent audio installations, the motion picture industry, and for musician and performers just like you.

KW SeriesIn addition to excellent speaker construction methods and robust cabinet designs, QSC also possesses state-of-the-art electronic circuit technology. Nowhere is this fusion of hardware and intelligent electronics more evident than in the QSC K Series, KW Series, and KLA Series of active, self-powered PA loudspeakers. Each Series is totally unique; yet all share some of the unique innovations that provide foolproof operation, simple system set-ups, plus clean and powerful sound. Meet The Family American Musical Supply is proud to carry the entire K Series, KW Series, and KLA Series from QSC.

K Series:

Light and Powerful
K 8

(8" 2-Way)
K 10

(10" 2-Way)
K 12

(12" 2-Way)
KSub

(2 x 12" Subwoofer)
KW Series:

Plywood Enclosures
KW122

(12" 2-Way)
KW152

(15" 2-Way)
KW153

(15" 3-Way)
KW181

(1 x 18" Subwoofer)
KLA Series:

Line Array Modules
KLA12

(12" 2-Way)
KLA181

(1 x 18" Subwoofer)
Efficient Class D Power The K Series, KW Series, and KLA Series are driven by an efficient Class D digital amplifier offering 1,000 Watts of continuous power. Every two-way and three-way speaker cabinet features a built-in electronic crossover matched to a pair of 500 Watt modules. This allows each transducer to operate more effectively by playing only the select frequencies that it was designed to reproduce—creating less overall distortion. Subwoofer cabinets feature 1,000 Watts of overall power. Lighter in weight than a traditional amplifier, Class D power also generates less heat. The result is an efficient, lighter weight loudspeaker that runs clean and cool—with less wear and tear on critical components. Intelligent DSP Circuitry Advanced Digital Signal Processing is built into each K Series, KW Series, and KLA Series loudspeaker. From clipping protection to extended bass response, this DSP circuitry goes above and beyond the sonic potential of the transducers and amplifiers to actively enhance and improve the sound for the best possible performance. In the continued absence of an input signal (approx. 5 minutes), active sensing circuitry automatically places the amplifier in the standby mode to conserve power, and to eliminate the need for manually powering down the system. The digital amplification can start up again in a heartbeat as soon as it is needed. Creative Connections K Series and KW Series models are equipped with a two-channel mixer with independent level controls. In addition to XLR and 1/4" connectors with Mic and Line level switching, stereo RCA jacks are also provided. KLA Series loudspeakers feature active controls that re-tune the cabinet response—based on the number of cabinets being used—for optimal sound. In addition, all models in all series feature a convenient pass-thru line output for daisy-chaining multiple cabinets together for a custom setup. K SeriesVersatile Cabinet Design All of the K Series, KW Series, and KLA Series loudspeakers feature comfortable handles for easy transport and positioning. In addition, each provides both pole-mount fixtures and M-10 rigging points for flying the cabinets. The SOLO™ Rigging System—exclusive to QSC—allows multiple KLA Series cabinets to be locked together for advanced Line Array applications. In addition, optional mounting frames allow KLA Series cabinets to be shaped into a fly-able array. Steel grilles deliver an extra level of speaker protection. Remote Control Using a compatible remote control unit allows the output level to be adjusted without having to get in behind the cabinet. In addition, a single remote can control any and all QSC K Series, KW Series, and KLA Series loudspeakers used in a single system. For system monitoring, all models offer a three-way switch for the front-facing LED, so it can serve as a power light, a peak/clip indicator, or it can be set to remain dark for more discreet applications. Superior Sound Exceptional Low and Mid frequency drivers, powerful amplifiers, and an efficient cabinet design combine to deliver satisfying sound in any venue. Regardless of model, each two-way and three-way loudspeaker features a robust high-frequency compression driver with a generous 1.75" diaphragm. The result is tight, rich bass and clean, crisp highs. Explore each of the QSC loudspeakers available at American Musical Supply and discover your next loudspeaker system.

QSC K SERIES ACTIVE LOUDSPEAKERS

The New Standard for Portable Sound

Equipped with extensive input mixing and effective sound-shaping controls, the QSC K Series adds real-world versatility and enhanced performance to the traditional active loudspeaker. Efficient digital amplification and impact-resistant ABS enclosures endow the QSC K Series with a compact size and a lighter weight that allows simple set-up and easy transport. The KSub subwoofer is constructed of select birch plywood. The K Series provides four distinct models:

K Series:

K 8

(8" 2-Way)
K 10

(10" 2-Way)
K 12

(12" 2-Way)
KSub

(2 x 12" Subwoofer)
K8QSC K8 Powered PA SpeakerBuy Now Plug and Play Setup of the K Series couldn’t be simpler. The built-in two-channel mixer offer versatile connections and control—for many applications, an external mixer and/or direct box is not required. Input A features an XLR+1/4" Combo input with a Mic/Line level switch. The line-level Input B also offers an XLR+1/4" Combo input, plus an additional pair of RCA inputs. Each input is equipped with a dedicated Gain knob. Switch the HF control from flat to Vocal Boost and add extra emphasis to the High Frequency vocal range. In addition to an XLR thru-put for each input, the K Series includes an XLR Mix jack that provides a post-mixer output. An additional connection point allows remote volume control using a compatible controller.
K10QSC K10 Powered PA SpeakerBuy Now Active DSP Audio Processing The K Series loudspeakers allow effective sound-shaping control through the use of exclusive DSP technology.

Intrinsic Correction
Actively measures and adjusts time, frequency, and amplitude response to achieve flat response optimized for the entire sound spectrum. K8, K10, and K12
DEEP
Manually selectable, this circuit monitors low-end transients to provide enhanced bass response without creating unwanted artifacts in adjacent frequencies—all while protecting the bass speaker from over excursion. K8, K10, K12, and KSub
Guard Rail
Monitors amplifier output and signal strength to actively avoid destructive audio clipping. K8, K10, K12, and KSub

Any Way You Want It The heavy-duty ABS cabinets feature deep-scoop aluminum handles; steel grilles offer extra protection on the job and on the road. The Tilt-Direct™ pole-mount fitting—a QSC exclusive—allows a downward tilt of the cabinet by 7.5° to minimize reflections and increase coverage. In addition, built-in M10 rigging points allow the K Series loudspeakers to be flown in an overhead array. Unlike traditional pole-mount bases, the KSub offers a threaded base and matching pole that eliminate wobble and increase system efficiency—another QSC innovation. The multi-layer birch ply cabinet of the KSub is equipped with low-noise casters for easy transport. K12QSC K12 Powered PA SpeakerBuy Now Improved Audio Coverage Acoustically, as the woofer size increases, the narrower the coverage will be as the frequency approaches the crossover point. Using DMT™ (Directivity Matched Transition) QSC engineers have matched the woofer coverage to the dispersion of the high-frequency waveguides to ensure full-range audio coverage across the entire listening area. This, combined with efficient K Series cabinet design and axisymetric high-frequency waveguides, allows either horizontal or vertical use. KSUBQSC KSUB Powered PA SubwooferBuy Now Power Ranger Each K Series loudspeaker (and subwoofer) sports a stunning 1,000 Watts of clean, continuous Class D power. Highly-efficient digital amplification significantly reduces the weight of the loudspeaker and minimizes heat output. Nonetheless, a 50mm sensor-controlled fan is built into each K Series chassis for ventilation and cooling. Additional thermal and overcurrent protection circuits ensure trouble-free operation.

QSC KW SERIES ACTIVE LOUDSPEAKERS

The Wooden-Cabinet Workhorse

Unlike the K Series loudspeakers, the entire QSC KW Series is constructed with precision-milled birch plywood cabinets. These rugged road-ready cabinets offer the same extensive input mixing and effective sound-shaping controls shared by the K Series and KLA Series. Despite all of the exclusive QSC innovations, the KW Series remain lighter than traditional wooden loudspeakers—allowing simple set-up and easy transport. In addition, the KW153 introduces a unique three-way loudspeaker. The KW Series provides four distinct models:

KW Series:

KW122

(12" 2-Way)
KW152

(15" 2-Way)
KW153

(15" 3-Way)
KW181

(1 x 18" Subwoofer)
KW122QSC KW122 Loudspeaker Powered PA SpeakerBuy Now Road Ready Brimming with features, the KW Series is capable of much more than many traditional active loudspeakers, often forgoing the need for an external mixer and/or direct box. Input A features an XLR+1/4" Combo input with a Mic/Line level switch. The line-level Input B also offers an XLR+1/4" Combo input, plus an additional pair of RCA inputs. Each input is equipped with a dedicated Gain knob. Switch the HF control from flat to Vocal Boost and add extra emphasis to the High Frequency vocal range. In addition to an XLR thru-put for each input, the KW Series includes an XLR Mix jack that provides a post-mixer output. An additional connection point allows remote volume control using a compatible controller.
KW152QSC KW152 Loudspeaker Powered PA SpeakerBuy Now Active DSP Audio Processing The KW Series loudspeakers allow effective sound-shaping control through the use of exclusive DSP technology.

Intrinsic Correction
Actively measures and adjusts time, frequency, and amplitude response to achieve flat response optimized for the entire sound spectrum. KW122, KW152, and KW153
DEEP
Manually selectable, this circuit monitors low-end transients to provide enhanced bass response without creating unwanted artifacts in adjacent frequencies—all while protecting the bass speaker from over excursion. KW122, KW152, KW153, and K181 Subwoofer
Guard Rail
Monitors amplifier output and signal strength to actively avoid destructive audio clipping. KW122, KW152, KW153, and K181 Subwoofer

KW153QSC KW153 Loudspeaker Powered PA SpeakerBuy Now Athletic Applications The efficient KW Series cabinet design and axisymetric high-frequency waveguides allow either horizontal or vertical use. The heavy-duty birch-ply cabinets feature deep-scoop aluminum handles; steel grilles offer extra protection on the job and on the road. The Tilt-Direct™ pole-mount fitting—a QSC exclusive—allows a downward tilt of the cabinet by 7.5° to minimize reflections and increase coverage. In addition, built-in M10 rigging points allow the KW Series loudspeakers to be flown in an overhead array. Unlike traditional pole-mount bases, the K181 Subwoofer offers a threaded base and matching pole that eliminate wobble and increase system efficiency—another QSC innovation. The K181 Subwoofer is equipped with low-noise casters for easy transport. Superior Sound The KW Series overcomes one of the most overlooked issues in loudspeaker design. Acoustically, as the woofer size increases, the narrower the coverage will be as the frequency approaches the crossover point. Using DMT™ (Directivity Matched Transition) QSC engineers have matched the woofer coverage to the dispersion of the high-frequency waveguides to ensure full-range audio coverage across the entire listening area.
KW181QSC KW181 Loudspeaker Powered PA SubwooferBuy Now Power Packed Performance Each KW Series loudspeaker (and subwoofer) sports a stunning 1,000 Watts of clean, continuous Class D power. Highly-efficient digital amplification significantly reduces the weight of the loudspeaker and minimizes heat output. Nonetheless, a 50mm sensor-controlled fan is built into each KW Series chassis for ventilation and cooling. Additional thermal and overcurrent protection circuits ensure trouble-free operation.

QSC KLA SERIES ACTIVE LOUDSPEAKERS

Proven K Series Performance in a True Line Array Package

Are you ready for the next step in sound system evolution? The KLA Series from QSC retains the highly acclaimed Class D amplifier, exceptional 1.75" high-frequency compression driver, and robust low-range speakers that have defined the successful sound of the K Series and KW Series. What makes the innovative and easy-to-use KLA Series different is their unique ability to self-assemble into a true Line Array system. Best of all, the KLA Series delivers all of the advantages of a line array system—modular design; space-specific installation and coverage; patch-thru power and audio connections; multiple rigging options—with none of the disadvantages.

With the KLA Series, there is no need for difficult calculations, racks of amplifiers, or elaborate signal processing. The totally revolutionary SOLO™ (Single Operator LOgistics) system allows multiple units to latch together in seconds to form the basis of a Line Array system—no tools required! Add to that the exclusive Ar-Q™ Arcuate Equalization control system. Simply rotate the dial to select the number of KLA Series modules in use, and the EQ and sound are automatically optimized to match your array. The days of manually setting the gain and EQ for each module are over.


The KLA Series provides two distinct models:

KLA Series:

KLA12

(12" 2-Way)
KLA181

(1 x 18" Subwoofer)
KLA12QSC KLA12 Line Array Powered PA SpeakerBuy Now Mix and Match The modular design of the KLA Series is truly innovative. The SOLO mounting hardware is completely self-contained in each loudspeaker; simply extended the latch to connect an additional cabinet, and pull the handle down to lock it in place. It’s that simple. Up to five units can be locked together; thanks to the energy efficient design, all five modules can be run from a single 15 amp 120 Volt outlet. In addition to the XLR audio input—featuring a dedicated Gain knob—there is an XLR output to pass the input signal along to the next module. Locking PowerCon™ AC cables and XLR Audio jumpers are included to build your system. An additional connection point allows remote volume control using a compatible controller. Active Processing The KLA Series loudspeakers allow effective sound-shaping control through the use of exclusive DSP technology.

Intrinsic Correction
Actively measures and adjusts time, frequency, and amplitude response to achieve flat response optimized for the entire sound spectrum. KLA12
DEEP
Manually selectable, this circuit monitors low-end transients to provide enhanced bass response without creating unwanted artifacts in adjacent frequencies—all while protecting the bass speaker from over excursion. KLA12, KLA181
Guard Rail
Monitors amplifier output and signal strength to actively avoid destructive audio clipping. KLA12, KLA181
KLA181QSC KLA181 Active Line Array System SubwooferBuy Now Agile Performers KLA Series line array loudspeaker modules can be locked together using the SOLO latching mechanism and mounted in many different ways to accommodate the acoustics, size, and space limitations of nearly any venue. The Tilt-Direct™ pole-mount fitting—a QSC exclusive—allows a downward tilt of the KLA12 cabinet by 9° to minimize reflections and increase coverage. In addition, built-in M10 rigging points allow the KLA Series loudspeakers to be flown in an overhead array. The KLA AF12 Array Frame is also available.

High-Impact ABS forms the lightweight housing of the KLA12. The KLA181 Subwoofer features a heavy-duty birch-ply cabinet. Both offer deep-scoop aluminum handles; steel grills offer extra protection on the job and on the road. Unlike traditional pole-mount bases, the KLA181 Subwoofer offers a threaded base and matching pole that eliminate wobble and increase system efficiency—another QSC innovation.
Serious Sound The KLA181 Subwoofer uses a single 18" woofer to generate tight, accurate bass. A convenient phase reverse switch keeps your subwoofer in sync with the rest of your system. In order to accommodate the line array design, the KLA12 features a solid 12" woofer along with a 1.75" compression driver that is matched to a Multiple Diffraction Aperture Waveguide for ideal dispersion. Power Packed Performance Each KLA Series loudspeaker and subwoofer sports a stunning 1,000 Watts of clean, continuous Class D power. Highly efficient, digital amplification significantly reduces the weight of the loudspeaker and minimizes heat output. Nonetheless, a 50mm sensor-controlled fan is built into each KLA Series chassis for ventilation and cooling. Additional thermal and overcurrent protection circuits ensure trouble-free operation.

QSC Buyer's Guide

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