• K Series performance in a lightweight, birch design
• 1000 watt Class D power modules in all models (2 x 500 W continuous)
• Extensive DSP featuring DEEP™ and Intrinsic Correction™ enhances system performance
• DMT™ (Directivity Matched Transition) ensures uniform coverage across the entire sound field
• Rugged, texture-painted birch enclosures
• Four-position Mic/Line gain (full-range models)
• Tour-grade 16 gauge steel grilles
• Comfortable ergonomic handles
• 35 mm pole sockets with Tilt-Direct™ on KW122 and KW152, standard (non-tilt) pole socket on KW153
• M10 rigging points for suspended installation (full-range models)

Building on the success of our K Series, the KW Series represents the next evolutionary step in wood enclosure loudspeakers. Our system engineers have created the KW Series to feature all the groundbreaking electronic attributes of our popular K Series while at the same time designing a product that is both smaller and significantly lighter than previous wood enclosure models.

High Output

Like K Series, each of the four KW Series models features a QSC designed, 1000 watt (2 x 500 W continuous) Class D power module. And continuing in the K Series tradition, every model is fitted with the identical high-output 1.75" HF device (full-range models) and woofers of the same high quality design, regardless of speaker size.

Defined Coverage Area

Directivity Matched Transition (DMT™) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural "dead" or "hot" frequency zones.

DSP

Extensive signal processing is employed throughout, providing levels of sonic clarity and total output that defy all expectations for a product in this category:

• Intrinsic Correction™, first featured in our high-end line array products maps 65-75 spatially-averaged measurements to IIR and FIR filters that actively adjust time, frequency and amplitude response to a maximally flat bandpass target. The result is a speaker that behaves equally well across the entire sound field.
• DEEP™ and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies.
• GuardRail™ protection, first introduced on our GX Series amplifiers protects both the amplifier module and your performance from unnatural and destructive clipping.

Connectivity

KW Series features a four-position mic / line gain switch that allows for connection of a wide variety of devices. Combo XLR and 1/4" TRS inputs accept both mic and line level input while a set of RCA phono inputs (except KW181) allow additional connectivity to portable MP3 players, CD players and line-level mixers. Up to three audio sources can be mixed internally and summed to a balanced output for "daisy-chaining" of multiple units. Separate direct outputs are also provided on each channel for additional output flexibility.

Control

On-board switches provide preset EQ settings. The HF setting (full-range models) can be set to VOCAL BOOST for additional presence in the critical mid-frequency area or FLAT for accurate reproduction of the incoming signal. The LF switch can be set to NORM, DEEP™ for additional bass extension, or EXT SUB (full-range models) for use with an external subwoofer. The rear panel LED switch can be set to POWER, illuminating the front-mounted LED when the unit is powered on, OFF for applications where it is not desirable to illuminate the front LED, or LIMIT which indicates to the system operator that the clip limiter circuit has been engaged during operation.

Tilt-Direct™

The KW122 and KW152 feature a unique Tilt-Direct™ pole cup mounting system. A simple turn of the dial engages a 7.5 degree downward tilt of the speaker allowing acoustic energy to be kept on the audience and off reflective surfaces for applications where maximum coverage from a high-positioned speaker is desired.

Remote Gain

Remote gain control capability is offered via a potentiometer (not included) connected to the on-board Phoenix-Style connector. In an installed application, multiple KW Series speakers can be "daisy-chained" for total gain control from a single remote pot. Auto-standby mode is engaged after 5 minutes of inactivity.

Premium-grade materials

KW Series is designed to withstand the rigors of professional use. Advanced construction processes, premium-grade Baltic birch cabinetry, ergonomic, cast aluminum handles, low-noise casters (KW181) and a highly protective steel grille provide for ease of transport and long term durability. Integrated M10 suspension points allow for flown applications with a KW M10 KIT (sold separately) and a threaded pole receptacle (KW181) provides for a positive, wobble free connection to a threaded speaker pole (included).

• Operating Mode: Active
• Weatherproof: No

KW Series
Specifications	KW122	KW152	KW153	KW181
Configuration	12" 2-way multipurpose	15" 2-way trapezoidal	15" 3-way trapezoidal	18" subwoofer
Transducers Low-frequency Mid-frequency High-frequency	12" cone transducer - 1.75" diaphragm compression driver	15" cone transducer - 1.75" diaphragm compression driver	15" cone transducer 6.5" mid range cone transducer 1.75" diaphragm compression driver	18" cone transducer
Frequency Response (-6 dB)	53 Hz - 18 kHz	47 Hz - 18 kHz	35 Hz - 18 kHz	38 Hz - 124 Hz
Frequency Range (-10 dB)	50 Hz - 20 kHz	44 Hz - 20 kHz	33 Hz - 20 kHz	34 Hz - 143 Hz
Nominal Coverage (-6 dB)	75° axisymmetric	60° axisymmetric	75° axisymmetric
Maximum SPL1	132 dB peak	133 dB peak	135 dB peak	135 dB peak
Amplifier
Power Output2	1000 W Class D (500 W LF, 500 W HF) continuous 2000 W peak		1000 W Class D (500 W LF, 500 W MF/HF) continuous 2000 W peak	1000 W Class D continuous 2000 W peak
Input Impedance (ohms)	Channel A XLR / ¼": Mic Gain Setting 0 dB: Balanced: 38k, Unbalanced:19k Mic Gain Setting +12 dB: Balanced 10k, Unbalanced: 5k Mic Gain Setting +24 dB: Balanced: 2.66k, Unbalanced: 1.33k Mic Gain Setting: +36 dB: Balanced: 660 ohms, Unbalanced: 330 ohms Channel B XLR / ¼": 38k balanced / 19k unbalanced Channel B RCA: 10k			XLR / ¼": 38k balanced / 19k unbalanced
Controls	Power, Gain A, Gain B, Channel A Input Gain (0 dB / 12 dB / 24 dB / 36 dB), LF Mode (Ext Sub/Norm/DEEP™), HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit)			Power, Gain, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (On/Off/Limit)
Indicators	Power, Signal A, Signal B, Standby, Limit, Mic (24 dB and 36 dB settings)			Power, Signal, Standby, Limit
Connectors	Balanced female XLR/¼" line/mic level input, Balanced female XLR/¼" line level input, Dual Balanced male XLR full range line level out , Balanced male XLR "mix" out, Stereo RCA line level input, Remote gain control, Locking IEC power connector			Dual balanced female XLR/¼" line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
Cooling	On demand, 50 mm variable speed fan
Amplifier Protection	Thermal limiting, output overcurrent, overtemperature muting, GuardRail™
Transducer Protection	Thermal limiting, excursion limiting
AC Power Input	Universal power supply 100-240 VAC, 50 - 60 Hz			Universal power supply 100 - 240 VAC, 50 - 60 Hz
AC Power Consumption (1/8 Power)	100 VAC, 2.3 A 120 VAC, 2.01 A 230 VAC, 1.13 A
Enclosure
Material	15 mm painted birch plywood
Finish	Black textured paint
Grille	Black powder coated 16 gauge steel
Dimensions (HWD)	26" x 15" x 15.4" 660 mm x 381 mm x 391 mm	32.1" x 17.5" x 15.2" 816 mm x 445 mm x 386 mm	43.1" x 18.5" x 16.8" 1094 mm x 470 mm x 427 mm	20.1" x 23.4" x 29.9" with casters 510 mm x 595 mm x 761 mm with casters
Weight (Net)	49 lb (22.2 kg)	62 lb (28 kg)	87 lb (39.5 kg)	88 lb (40 kg)
Available Accessories	KW SUS KIT 122 KW122 COVER KW M10 KIT	KW152 COVER   KW M10 KIT	KW153 COVER KW M10 KIT	KW181 COVER

• 1: For comparison purposes and in accordance with common industry practice, maximum peak SPL specifications are theoretical calculations based upon transducer sensitivity and peak available amplifier power.
• 2: Independent of limiters and driver protection circuits.
• All Specifications Subject to Change Without Notice.

• KW-Series User Manual, English (4900 kB)
• KW-Series Spec Sheet, English (1700 kB)
• KW-Series CAD File 2D (DXF)
• KW122 CAD File (PDF) (66 kB)
• KW122 CAD File 3D (DXF) (190 kB)
• KW152 CAD File (PDF) (60 kB)
• KW152 CAD File 3D (DXF) (154 kB)
• KW153 CAD File (PDF) (60 kB)
• KW153 CAD File 3D (DXF) (157 kB)
• KW181 CAD File (PDF) (52 kB)
• KW181 CAD File 3D (DXF) (278 kB)

EASE Downloads

Recognized as the de facto standard for sound system modeling software, EASE is designed to assist architects, engineers, consultants, and contractors discover the sonic characteristics of an environment before a building is completed. The following downloadable ZIP files are archives of the loudspeaker's data set.

Software Downloads (ZIP-Files)

• KW Series EASE 3, 16.09.2010, contains: KW122, KW152, KW153, KW181 (ZIP 300 kB)
• QSC Loudspeakers EASE (ZIP 10MB): All loudspeaker data files in one archive, 16.09.2010, contains: AD Series, ISIS Multipurpose, MD Series, MD Powered Series, WideLine-8, WideLine-10, ILA, HPR Series & KW Series