• Lightweight portable powered speakers with legendary QSC amplifier power and reliability
• 1000 watt continuous Class D power modules in all models
• Extensive DSP enhances system performance
• Attractive and professional appearance
• Rugged ABS enclosures (K8, K10 and K12)
• Tour-grade 18 gauge steel grilles
• Comfortable ergonomic handles
• 35 mm pole sockets with Tilt-Direct™ (fullrange models)
• M10 rigging points for suspended installation (fullrange models)
• K10 and K12 perform as main PA or stage monitors

 

The new standard in loudspeaker systems

Under the direction of Pat Quilter, QSC's team of amplifier engineers have created a new standard in Class D power modules unparalleled in the industry. 

Extensive DSP processing is employed throughout, providing levels of sonic clarity and total output that defy the system's size and weight.

Premium-grade materials, advanced construction processes and multiple mounting and suspension options allow for a wide range of live and installed applications.

Combo XLR and 1/4" TRS inputs accept both Mic and Line Level input while a set of RCA phono inputs (except KSub) 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.

On-board switches provide preset EQ settings. The HF setting (fullrange 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 (fullrange 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.

Fullrange models are housed in rugged ABS enclosures with a professional appearance that is at home in any application. ABS is a far more robust material than conventional speaker plastics and offers an additional measure of sonic clarity due to its internal rigidity. Ergonomic aluminum handles and a highly protective steel grille complete the package for ease of transport and long term durability.

The K Series fullrange models 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. Integrated M10 suspension points allow for suspended applications with a K SERIES M10 KIT (sold separately) or Yoke bracket (sold separately).

The KSub is a dual-12" bandpass design, constructed of premium birch and includes high-quality, low-noise casters. The subwoofer features a threaded pole receptacle for a positive, wobble free connection to a threaded speaker pole (included).

Remote gain control capability is offered via a potentiometer (not included) connected to the on-board Euroblock connector. In an installed application, multiple K 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.

Extensive DSP / Key Features

• DMT™ (Directivity Matched Transition) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural "dead" or "hot" frequency zones.
• Intrinsic Correction™, first featured in our high-end line-array products maps 65-75 spacially-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.

• Operating Mode: Active
• Weatherproof: No

K Series
Technical Specifications	K8	K10	K12	KSub
Configuration	Trapezoidal 2-way	Multipurpose 2-way	Multipurpose 2-way	4th Order Bandpass
Transducers   Low-frequency   High-frequency	8" cone transducer 1.75" diaphragm compression driver	10" cone transducer 1.75" diaphragm compression driver	12" cone transducer 1.75" diaphragm compression driver	2 x 12" cone transducers
Frequency Response (-6 dB)	66 Hz - 18 kHz	60 Hz - 18 kHz	52 Hz - 18 kHz	48 Hz - 134 Hz
Frequency Range (-10 dB)	61 Hz - 20 kHz	56 Hz - 20 kHz	48 Hz - 20 kHz	44 Hz - 148 Hz
Nominal Coverage (-6 dB)	105° conical	90° conical	75° conical
Maximum SPL1	124 dB peak	126 dB peak	128 dB peak	128 dB peak
Amplifiers
Power Output2	1000 W continuous Class D (500 W LF, 500 W HF) 2000 W peak	1000 W continuous Class D (500 W LF, 500 W HF) 2000 W peak	1000 W continuous Class D (500 W LF, 500 W HF) 2000 W peak	1000 W continuous Class D (2x500 W) 2000 W peak
Input Impedance (ohms)	XLR / ¼": 40k balanced / 20k unbalanced XLR / ¼" MIC mode: 2260 balanced RCA: 10k	XLR / ¼": 40k balanced / 20k unbalanced XLR / ¼" MIC mode: 2260 balanced RCA: 10k	XLR / ¼": 40k balanced / 20k unbalanced XLR / ¼" MIC mode: 2260 balanced RCA: 10k	XLR / ¼": 40k balanced / 20k unbalanced
Controls	Power, Gain A, Gain B, Mic/Line, LF Mode (Ext Sub/Norm/DEEP™), HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit)	Power, Gain A, Gain B, Mic/Line, LF Mode (Ext Sub/Norm/DEEP™), HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit)	Power, Gain A, Gain B, Mic/Line, 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	Power, Signal A, Signal B, Standby, Limit, Mic	Power, Signal A, Signal B, Standby, Limit, Mic	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	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	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	On demand, 50 mm variable speed fan	On demand, 50 mm variable speed fan	On demand, 50 mm variable speed fan
Amplifier Protection	Thermal limiting, output overcurrent, overtemperature muting, GuardRail™	Thermal limiting, output overcurrent, overtemperature muting, GuardRail™	Thermal limiting, output overcurrent, overtemperature muting, GuardRail™	Thermal limiting, output overcurrent, overtemperature muting, GuardRail™
Transducer Protection	Thermal limiting, excursion limiting	Thermal limiting, excursion limiting	Thermal limiting, excursion limiting	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	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	100 VAC, 2.3 A 120 VAC, 2.01 A 230 VAC, 1.13 A	100 VAC, 2.3 A 120 VAC, 2.01 A 230 VAC, 1.13 A	100 VAC, 2.3 A 120 VAC, 2.01 A 230 VAC, 1.13 A
Enclosure
Material	Impact resistant ABS	Impact resistant ABS	Impact resistant ABS	Painted birch plywood
Finish	Black paint	Black paint	Black paint	Black textured paint
Grille	Black powder coated 18 gauge steel	Black powder coated 18 gauge steel	Black powder coated 18 gauge steel	Black powder coated 18 gauge steel
Dimensions (HWD)	17.7" x 11" x 10.6" 450 mm x 280 mm x 269 mm	20.4" x 12.6" x 11.8" 519 mm x 320 mm x 300 mm	23.7" x 14" x 14" 603 mm x 356 mm x 356 mm	26" x 14" x 28.1" (including casters) 665 mm x 356 mm x 714 mm
Weight (Net)	27 lb / 12.2 kg	32 lb / 14.5 kg	41 lb / 18.6 kg	74 lb / 33.6 kg
Available Accessories	K8 TOTE, K8 YOKE, K SERIES M10 KIT	K10 TOTE, K10 YOKE, K SERIES M10 KIT	K12 TOTE, K12 YOKE, K SERIES M10 KIT	KSub 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.

 

K8, K10, K12 back panel	KSub back panel

• K-Series User Manual, English (2500 kB)
• K-Series Spec Sheet, English (1700 kB)
• K-Series CAD File K10
• K-Series CAD File K12
• K-Series CAD File Subwoofer
• K-Series CAD File K8
• K-Serie CAD File 3D (DXF)
• K-Series CAD File 2D (DXF)
• K-Series Subwoofer CAD File 3D (DXF)
• K-Series Subwoofer CAD File 2D (DXF)
• K-Series Subwoofer CAD File 3D (DXF)