K Series User Manual K8 – 105° 1000 W active 8" (200 mm) 2-way loudspeaker system K10 – 90° 1000 W active 10" (250 mm) 2-way loudspeaker system K12 – 75° 1000 W active 12" (300 mm) 2-way loudspeaker system KSub – Dual 12" (300 mm) 1000 W active 4th-order bandpass subwoofer system TD-000280-00-A1 *TD-000280-00-A*
IMPORTANT SAFETY PRECAUTIONS AND EXPLANATION OF SYMBOLS WARNING! CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE AMPLIFIER COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous” voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of shock to humans.
Warranty (USA only; other countries, see your dealer or distributor) QSC Audio Products 3 Year Limited Warranty QSC Audio Products, LLC (“QSC”) guarantees its products to be free from defective material and/or workmanship for a period of three (3) years from the date of sale and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use – provided the unit is returned to our factory or one of our authorized service stations vi
Features 7 K8 4 1. ABS enclosure 6 1 2. Steel grille 3. Front power LED 4. Cast aluminum handles 7 7 2 5. Power module 6. M10 installation points 5 7. M5 yoke attachment points 3 9 8. Tilt-Direct™ dual angle pole socket 9 9. Slip-resistant feet 6 7 8 7 4 K10 1 1. ABS enclosure 6 2. Steel grille 3. Front power LED 4. Cast aluminum handles 4 7 7 2 4 5. Power module 5 6. M10 installation points 7. M5 yoke attachment points 8.
7 4 K12 1. ABS enclosure 1 6 2. Steel grille 3. Front power LED 4. Cast aluminum handles 9 4 7 7 2 4 5. Power module 5 6. M10 installation points 7. M5 yoke attachment points 8. Tilt-Direct™ dual angle pole socket 9 3 9 6 8 9. Slip-resistant feet 7 7 6 KSub 1 1. Birch plywood enclosure 4 2. Front power LED 3. Acoustic port 7 3 4. Cast aluminum handles 5. Power module 5 6. M20 threaded pole receptacle 7. 3" heavy duty casters 2 4 8.
Applications The K Series has been primarily designed for portable audio reinforcement. This includes a variety of uses in reinforcement for entertainers and presenters. The K8, K10 and K12 are all designed to perform well on their own in full-range audio. They can be used singly, in stereo pairs or in distributed or delayed systems. They perform extraordinarily well as both main reinforcement systems and as floor monitors (K10 and K12 only).
Installation Before placing, installing, rigging, or suspending any speaker product, inspect all hardware, suspension, cabinets, transducers, brackets and associated equipment for damage. Any missing, corroded, deformed, or non-load rated component could significantly reduce the strength of the installation or placement. Any such condition severely reduces the safety of the installation and should be immediately corrected.
Integrated Suspension Points (suspended installations) The K8, K10 and K12 enclosures each feature three load-rated M10 installation points. As shipped from the factory, each pick point has a rubber plug installed to retain the sleek look of the enclosure. These installation points are designed for use with the eyebolts included in the available accessory kit, model number K SERIES M10 KIT.
AC Mains Connect AC power to the IEC socket on the back of the amplifier by locating the IEC connector-end of the AC power cord and inserting it fully into the IEC inlet on the power amplifier module. NOTE: Turn off the AC power switch before connecting AC power. The V-LOCK power cord has a special latching feature to prevent the power cord from being unintentionally removed. The IEC plug and socket are both blue in color so the power cord can be identified as a K Series loudspeaker cord.
Input Connections K8, K10, K12 Channel A MIC/Line Input Combination XLR-M and 1/4" Phone Jack Channel B Line Input Combination XLR-M and 1/4" Phone Jack Channel A MIC Level Yellow LED Indicator Channel A MIC/Line Level Switch Channel B Line Input Phono (RCA) Jacks Channel A Green Signal Present LED Channel B Green Signal Present LED Channel B Gain Channel A Gain The K8, K10 and K12 are designed to accept MIC Level and Line Level inputs with several different connectors.
Balanced Inputs: Connect to the plug as shown. 1 = Shield (ground) 3 = Minus (-) 2 = Plus (+) Ground Inverting Input Non-inverting Input Unbalanced Inputs: Connect to the plug as shown. If a 3 conductor (TRS) plug is used to connect an unbalanced source, Pin 3 and pin 1 must be connected with a jumper as shown.
Output Connections K8, K10, K12 Channel A Line Level Direct Output Channel B Line Level Direct Output Channel A Gain Knob Channel B Gain Knob Post-Gain Line Output Both Channel A and Channel B have discreet direct outputs on female XLR connectors. The signal on this output is exactly equivalent to the signal from the corresponding input. The level of the output signal is not affected by the gain setting for that channel.
DSP Features The K Series features advanced DSP (digital signal processing) circuitry that performs many functions. Some functions are set at the design/production level and are not user accessible. These functions include crossovers, time alignment, limiting and protection, thermal management and a number of proprietary features. QSC has designed exclusive DSP functions that greatly enhance the capabilities and performance of the K Series systems.
Subwoofer Polarity Polarity (sometimes improperly referred to as phase) refers to the voltage of an input signal and whether it is a positive or negative voltage at any given time. In most cases a positive voltage causes a woofer cone to move forward with respect to the cabinet orientation, and a negative voltage then moves the woofer cone backward. Most importantly, speakers reproducing the same signal or signals that are adjacent in frequency must have the same polarity to get the maximum output.
Remote Gain Attenuator A 3 pin “Euro” connector has been provided to adjust the volume of the K Series loudspeaker or put the system into standby. (Figure 13) By varying the voltage on the pin between +5V (provided on pin) and ground ( pin), the volume can be linearly controlled. The voltage on the pin can be created by using a potentiometer or provided from an external source. Many K Series systems can be controlled from a single potentiometer by connecting the pins of multiple K Series speakers together.
Applications Input Hookup Output Hookup 16
Output Hookup OR 17
Common Standalone Small System (Mono) Common Stereo System LEFT RIGHT 18
Dimensions K8 K10 Top 11" 280 mm Top 12.6" 320 mm 10.6" 269 mm 11.8" 300 mm 17.7" 450 mm Front 20.4" 519 mm Side Front K12 Side KSub Top Top 14" 356 mm 14" 356 mm 28.1" 714 mm 14" 356 mm 23.
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.
Mailing Address: QSC Audio Products, LLC 1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USA Telephone Numbers: Main Number: 714-754-6175 Sales & Marketing: 714-957-7100 or toll free (USA only) 800-854-4079 Customer Service: 714-957-7150 or toll free (USA only) 800-772-2834 Facsimile Numbers: Sales & Marketing FAX: 714-754-6174 Customer Service FAX: 714-754-6173 World Wide Web: qscaudio.com E-mail: info@qscaudio.com service@qscaudio.com © 2009 QSC Audio Products, LLC. All rights reserved.
