QSC K12.2-DUAL-5W-K, K12.2-DUAL-5-K, K10.2-DUAL-5W-K User Manual

KS212C

Powered Cardioid

Subwoofer

KEY FEATURES

• “First-in-class” compact single-box cardioid solution

• 3600 Watt Class D ampliﬁer module

• Cardioid pattern provides -15 dB SPL attenuation front-to-rear

• Dual 12-inch, long-excursion drivers; Dual 6th order band-pass design

• Variable crossover and savable/recallable Scenes for commonly-used applications

™

(Turbulent Flow Reduction) port

• TFR design provides optimal resonant tuning and high velocity air ﬂow

• Reﬁned, professional appearance looks great in any application

• Rugged painted wood enclosure for long life and lasting durability

• Deployment in either vertical or horizontal positions with M20 speaker pole ﬁttings (36-inch speaker pole included)

• Optional KS LOC security cover prevents unauthorized tampering of controls

• Complete EASE and CAD information available online

• 6-Year Warranty

KS212C

Musicians/Bands ∙ Clubs/Venues ∙ DJs/Dance · AV Rental/Production

The KS212C is the world’s ﬁrst-in-class single-box powered cardioid

subwoofer solution for highly portable entertainment and installation applications.

Typical Subwoofer Energy Dispersion

Most subwoofers radiate energy around the entire enclosure, leading to undesirable LF build-up on stage and wasted energy around the sides and rear of the system.

The Problem:

Typically, subwoofers are omnidirectional, radiating sound equally in all directions. This results in troublesome, unwanted low-frequency build-up on stage as well as undesired, wasted LF energy at the rear of the system. In more recent years, concert sound providers have been able to create cardioid (heart-shaped) coverage of their subwoofer arrays through some clever manipulation of placement, delay and polarity, redirecting desired LF energy forward and minimizing energy at the sides and rear. Unfortunately, this technique is costly and requires multiple enclosures, ampliﬁers and processors.

Cardioid Subwoofer Energy Dispersion

The KS212C keeps “Bass in its Place” with a single-box cardioid solution that produces an amazing 15 dB more output at the front than at the rear.

The KS212C Solution:

Representing a breakthrough in innovation and design, the KS212C uniquely provides all the beneﬁts of a cardioid subwoofer array, but in a single, compact enclosure. “Keeping bass in its place” for mobile entertainers, AV production and rental professionals, as well as modestly-sized performance venues, the KS212C is unparalleled in its ability to manage low frequencies on the stage, or any application where undesirable low frequency energy needs to be minimized.

KS212C Cardioid Subwoofer

Front

Back

KS212C Speciﬁcations

KS212C

Conﬁguration: Dual 6th-Order Bandpass Cardioid Subwoofer

LF Transducer: 2 x 12-inch (305 mm), Cone

Frequency Response (-6 dB): 44 Hz - 104 Hz

Frequency Range (-10 dB): 39 - 118 Hz

Nominal Coverage Angle: 180˚ Cardioid (15 dB rear rejection @ 70 Hz)

Maximum Rated SPL

Ampliﬁer: Class D 2 x 1800 W (peak)

Cooling: Low-Noise, Variable Speed Fan

Controls: Power On/Off Gain Control Rotary Encoder 2 x Selection Buttons

Indicators: 2 x Power LED (front and rear) Input Signal LED Limiter Active LED

Connectors: 2 x Locking XLR/F ¼-inch Combo 2 x XLR/M (Loop-Thru Output) 1 x Locking IEC Power Connector

AC Power Input: Universal Power Supply 100 – 240 VAC, 50 – 60 Hz

AC Power Consumption (1/8

Enclosure Details

Enclosure: 18 mm Birch Plywood

Color: Black (RAL 9011)

Grille: Internal Woofer Cover

Dimensions (HxWxD): 24.5 x 15.5 x 33.5 inches 622 x 394 x 851 mm

Net Weight: 40.1 kg (88.5 lbs)

Shipping Weight: 48.5 kg (107 lbs)

Regulatory: CE, WEEE, UL, China RoHS, RoHS II, FCC Class B

Included Accessories: 4 x Low-Noise, Heavy-Duty Casters 36-inch Speaker Pole

Optional Accessories: KS212C Cover, KS LOC Lock-Out Cover SP-16X Extension Pole

: 132 dB @ 1 m (peak)

Power) 100 VAC, 3.6 A / 120 VAC, 3.0 A / 240 VAC, 1.7 A

1 Peak SPL is measured on-axis at 1 m, pink noise crest factor 10 dB, unweighted Continuous SPL is based on theoretical calculations based upon transducer sensitivity

and peak available power (for comparison purpose and in accordance with common industry practice.

With product registration. Visit qsc.com for full details.

Speciﬁcations subject to change without notice.

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