QSC K8 2 Way Active PA Speaker

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Quick Overview

Configuration:Trapezoidal 2-way
Transducers
   Low-frequency -    8" cone transducer
   High-frequence -  1.75" diaphragm compression driver


Frequency Response (-6 dB) 66 Hz - 18 kHz
Frequency Range (-10 dB) 61 Hz - 20 kHz
Nominal Coverage (-6 dB) 105° conical
Maximum SPL1 - 127 dB peak
Amplifiers: Power Output2 1000 W continuous Class D (500 W LF, 500 W HF)  2000 W peak


Input Impedance (ohms)
XLR / ¼": 40k balanced / 20k unbalanced
 XLR / ¼" MIC mode: 2260 balanced
 RCA: 10k


Controls
Power, Gain A, Gain B, Mic/Line, LF Mode (Ext Sub/Norm/DEEP™), HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit)


Indicators: Power, Signal A, Signal B, Standby, Limit, Mic
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


Cooling: On demand, 50 mm variable speed fan
Amplifier Protection: Thermal limiting, output overcurrent, overtemperature muting, GuardRail™
Transducer Protection: Thermal limiting, excursion limiting
Enclosure Material: Impact resistant ABS
Finish: Black paint
Grille: Black powder coated 18 gauge steel


Dimensions (HWD) : 17.7" x 11" x 10.6" 450 mm x 280 mm x 269 mm
Weight (Net): 27 lb / 12.2 kg


Available Accessories
K8 TOTE, K8 YOKE, K SERIES M10 KIT


 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.

QSC K8 2 Way Active PA Speaker

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The QSC K Series is quite simply The New Standard in lightweight powered 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. Next, breaking from the traditional loudspeaker paradigm, every model is fitted with the identical 1.75" HF device (fullrange models) and woofers of the same high quality for unparalleled performance, regardless of speaker size.

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). Extensive DSP 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.

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