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QSC Highlights K Series Compact Powered Loudspeakers At 2010 Winter NAMM

Systems pack 1,000 Watts of Class D amplification

By PSW Staff January 23, 2010

QSC K Series compact powered loudspeakers

Both accommodate line-level inputs and one may be switched to microphone level sensitivity. Phono (RCA) input jacks are also included for connection of consumer electronics sources (2-way models only).

Dual XLR outputs are provided for dual ‘loop-thru’ XLR/M connectors and a single XLR jack is available as a summed output. All three input sources may be utilized at once and mixed via the two gain control knobs (2-way boxes only).

Input Panel LED indicators are provided for power, signal present, mic level sensitivity and limit annunciation. A front-mounted power LED may be disabled by means of a rear panel switch when desired, or set so it indicates when the limit circuitry has been engaged.

Each K model incorporates a conical waveguide that maintains pattern control all the way down to the crossover frequency. The coverage angles of the waveguides are tailored for a smooth transition from woofer to compression driver with far less ‘waist-banding’ or other directivity related anomalies than other products in this class.

(click to enlarge)

Suspension and Mounting
The K Series two-way models may be pole-mounted, suspended or yoke mounted. The K8, K10 and K12 yoke accessory kits allow for either horizontal or vertical yoke mounting, providing a flexible means of attaching K Series loudspeakers to a building structure or truss.

When suspended deployment is required, M10 threaded inserts support vertical or horizontal suspension, while the integral pole mount socket accommodates 35mm speaker poles for use on a speaker stand or over a sub.

The pole socket is designed so that the speaker may be angled down 7.5° in order to cover the audience while keeping acoustic energy off reflective walls and ceilings.

Principle Features
• 1,000 watt, efficient and lightweight Class D power module
• Light Weight
• Professional appearance and rugged construction
• Directivity Matched Transition (DMT) and Intrinsic Correction DSP tuning for accurate, undistorted performance across the entire sound field
• GuardRail technology discreetly protects the system from damaging overload
• DEEP mode for enhanced low-frequency extension without a subwoofer
• Locking IEC power cable
• XLR and 1/4-inch connectors
• Phone mic/line and line inputs with loop-thru connectors and independent level controls.
• Phono (RCA) inputs (2-way units)
• Three 2-way models – each with coverage pattern optimized to match the LF driver
• Front-mounted LED may be switched off or to indicate LIMIT or AC Power On
• Dual angle, 35 mm pole socket with Tilt-Direct™ allows the speaker to be angled down to put the energy on the audience
• Suspension and yoke mounting accessories available
• 4-inch voice-coil woofer design for high output
• 1.75-inch voice-coil compression driver
• High Pass Filter for use with subwoofers
• Subwoofer – 1,000 watt, efficient and lightweight Class D power module
• Dual 12-inch band-pass for compact size, efficiency and high-power handling
• Threaded pole socket for solid, secure pole mounting (KSub, includes pole)
• 3-inch Casters (KSub)

QSC Audio Website

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David Neil Black says

I’m in a working rock band and we just used our QSC K-Series System for a 7-week US Tour and are taking it out again for 5 weeks next month. We use K8s for both mains and monitors along with a pair of KSubs. We’ve used them in all kinds of venues, many with poor acoustics, and have enjoyed consistently excellent results.

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