QSC KSUB Speaker Rental Operating Manual
Contents
1. DEEP setting This will engage the proprietary DEEP algorithm providing increased low frequency extension without causing distortion or woofer over excursion On the KSub there are two low frequency settings From the factory the switch is set to NORM This means that the subwoofer system is producing a non EQ d low frequency signal through the woofer This is the standard setting for most applications Figure 8 For extra low frequency extension and low end presence move the switch to the DEEP setting This will engage the proprietary DEEP algorithm providing increased low frequency extension without causing distortion or woofer over excursion High frequency EQ On the K8 K10 and K12 there are two high frequency settings From the factory the switch is set to FLAT This means that the loudspeaker system is producing a flat response through the vocal band This is the standard set ting for most applications Figure 9 In voice only reproduction the switch can be set to the VOCAL BOOST setting This will engage EQ that gives a stronger presence for vocal intelligibility and presence It is generally not recommended to use this setting when playing full range music through the system 13 LF EXT SUB NORM DEEP HC LINE INA A Figure 7 MODE POLARITY NORMAL A H NORMAL DEEP O REVERSE aa N LINE INA gt Figure 8 LF HF VOCAL EXT SUB BOOST NORM i FLA2. Figure 1 The K8 K10 and K12 are all equipped with a 35 mm pole socket that allows use on a speaker stand or on a pole over a subwoofer The pole socket features the QSC Patented Tilt Direct system for tilting the enclosures down 7 5 degrees while on the pole Figure 2 The K8 K10 and K12 also have features designed for various suspen sion methods They feature M10 threaded inserts for suspension with eyebolts There are also yoke accessories model numbers K8 YOKE K10 YOKE K12 YOKE for each model that can mount either to the sides of the cabinet or to the top and bottom These yokes allow for rigid mounting to structures and rotation of the speaker system Figure 3 For extra low frequency extension and enhancement the KSub is per fectly matched to the rest of the K Series The K8 K10 and K12 all have a selectable high pass filter for use with the subwoofer The KSub includes a fixed low pass filter so it will accept full range input The KSub has four large casters for maximum portability The pole sock et on the top of the enclosure is fitted with an M20 threaded insert The included speaker pole screws into the socket for a secure fit Figure 4 Figure 2 Figure 3 Figure 4 Installation A Before placing installing rigging or suspending any speaker product inspect all hardware suspension cabinets transducers brack ets and associated eq
3. Low frequency High frequency Frequency Response 6 dB Frequency Range 10 dB Nominal Coverage 6 dB Maximum SPL 1 meter Amplifiers Power Output Input Impedance Q Controls Indicators Connectors Cooling Amplifier Protection Transducer Protection AC Power Input AC Power Consumption 1 8 Power Enclosure Finish Grille Dimensions HWD Weight Net Available Accessories Trapezoidal 2 way Multipurpose 2 way 10 cone transducer 1 75 diaphragm compression driver 8 cone transducer 1 75 diaphragm compression driver 66 Hz 18 kHz 60 Hz 18 kHz 61 Hz 20 kHz 56 Hz 20 kHz 105 conical 90 conical 127 dB peak 129 dB peak 1000 W Class D XLR 1 4 40k balanced 20k unbalanced XLR 1 4 MIC mode 2260 balanced Multipurpose 2 way 12 cone transducer 1 75 diaphragm compression driver 52 Hz 18 kHz 48 Hz 20 kHz 75 conical 131 dB peak RCA 10k Power Gain A Gain B Mic Line LF Mode Ext Sub Norm DEEP HF Mode Flat Vocal Boost Front LED On Off Limit Power Signal A Signal B Standby Limit e Mic Balanced female XLR 14 line mic level input Balanced female XLR Va 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 On demand 50 mm variable speed
4. Direct Output Channel A and B Mixed Gain Knob Both Channel A and Channel B have discrete 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 set on the subwoofer gain knob 12 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 Proprietary DSP Functions Excursion Limiting In addition to signal limiting to protect the amplifier and transducers from overload the K Series utilizes a proprietary limiter that prevents woofer over excursion Over excursion occurs when a voltage presented to the woofer causes the cone to physically travel too far This builds up excessive heat stresses the moving parts of the woofer produces audible artifacts and distortion and reduces the woofer s lifespan The proprietary algorithm contained in Excursion Limiting prevents over excursion Voltages that will harm the woofer through over excursion are reduced enough to prevent over excursion without any audible compression limitin
5. sounds from being produced by the system pops clicks thumps These unintended sounds can be unpleasant and take away from the overall professionalism of the presentation Always follow the rule that speakers are last on first off Power On Sequence Bring the output level control of the mixer or other audio source feeding your speakers to its minimum position Turn on all source devices CD players mixers instruments turn on subwoofer then turn on the top boxes K8 K10 K12 The level controls on your mixer may now be brought up Power Off Sequence Turn off top boxes turn off subwoofer then turn off all source devices If a K Series speaker is being driven from the output of another K Series unit it should be turned on after the unit feeding it signal and turned off before the unit feeding signal Input Connections K8 K10 K12 Channel A MIC Line Input LF Hp FRONT LED Combination XLR M and EXT SUB Lre ET UND zum E REMOTE GAIN 1 4 Phone Jack NORM i H spa Ostey um pees orowan U 2 F P 5V _ gt MIC LINE INA gt lt LINE IN B Channel A MIC Level ne Yellow LED Indicator Channel A MIC Line ei Level Switch Channel A Green Signal Present LED Channel A Gain LINE OUT POST GAIN MIX The K8 K10 and K12 are designed to accept MIC Level and Line Level inputs with several different connectors There are three input connection points on t
6. warranty when the defect occurs under normal installa tion and use provided the unit is returned to our factory or one of our authorized service stations via prepaid transportation with a copy of proof of purchase Le sales receipt This warranty provides that the examination of the returned product must indicate in our judgement a manufacturing defect This warranty does not extend to any product which has been subjected to misuse neglect accident improper installation or where the date code has been removed or defaced QSC shall not be liable for incidental and or consequential damages This warranty gives you specific legal rights This limited warranty is freely transferable during the term of the warranty period Customer may have additional rights which vary from state to state In the event that this product was manufactured for export and sale outside of the United States or its territories then this limited warranty shall not apply Removal of the serial number on this product or purchase of this product from an unauthorized dealer will void this limited warranty Periodically this warranty is updated To obtain the most recent version of QSC s warranty statement please visit www qscaudio com Contact us at 800 854 4079 or visit our website at www qscaudio com FCC Statement NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These li
7. 00 or toll free USA only 800 854 4079 Customer Service 714 957 7150 or toll free USA only 800 772 2834 Facsimile Numbers Sales amp 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 QSC and the QSC logo are registered trademarks of QSC Audio Products LLC in the U S Patent and Trademark office and other countries Tilt Direct Intrinsic Correction DEEP and GuardRail are all trademarks of QSC Audio Products LLC All other trademarks are the property of their respective owners Patents may apply or be pending K Series User Manual 05 27 09
8. 1 Wiring hookup diagram 1 Wiring hookup diagram 1 M20 threaded loudspeaker pole Features K8 1 ABS enclosure 2 Steel grille 3 Front power LED 4 Cast aluminum handles 5 Power module 6 M10 installation points 7 M5 yoke attachment points 8 Tilt Direct dual angle pole socket 9 Slip resistant feet K10 1 ABS enclosure 2 Steel grille 3 Front power LED 4 Cast aluminum handles 5 Power module 6 M10 installation points 7 M5 yoke attachment points 8 Tilt Direct dual angle pole socket 9 Slip resistant feet K12 ABS enclosure Steel grille Front power LED Cast aluminum handles Power module M10 installation points M5 yoke attachment points Tilt Direct dual angle pole socket Slip resistant feet KSub L 2 Birch plywood enclosure Front power LED Acoustic port Cast aluminum handles Power module M20 threaded pole receptacle 3 heavy duty casters Slip resistant feet TT Applications The K Series has been primarily designed for portable audio reinforce ment 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
9. FF position the Front Power LED will not illuminate This setting is recommended in applications where the Front Power LED may be visually objectionable while the unit is operating In the LIMIT setting the Front Power LED will track the LIMIT LED on the rear of the unit When the K Series is in Limiting meaning that one or more of the limiters is engaging to protect some part of the system the Front Power LED will glow brighter in response to the limiting function This allows the system operator to have awareness of the status of the limiters without needing to see the rear of the unit For more information see the section below on the Rear LIMIT LED When not in limiting and when the unit is not in standby the front power LED will be illuminated dimly Rear LIMIT LED The red LIMIT LED can indicate that limiting has taken place to protect and avoid damage to the amplifier or loud speaker Figure 12 If the signal level at any frequency is too high the DSP will limit the signal to prevent damage and the red LIMIT LED will illuminate If the amplifier is too hot because the SPL is too high or the environment is too hot the red LIMIT LED will be illuminated If the red LIMIT LED is on when both Gain controls are at mini mum your K Series loudspeaker requires service by qualified personnel 14 MODE POLARITY NORMAL H E NORMAL peep REVERSE LINE INA gt Figure 10 FRONT LED CO Limit PWR REMOTE GAIN 2 STB
10. K Series User Manual OSCE 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 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 uninsu lated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of shock to humans YT The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation and ii CN UT S S maintenance servicing instructions in this manual Read these instructions Keep these instructions Heed all warnings Follow all instructions WARNING To prevent fire or electric shock do not expose this equipment to rain or moisture Do not use this apparatus near water Clean only w
11. T DEEP IIC LINE INA gt Figure 9 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 This is most important for low frequencies Polarity can be altered by incorrect wiring or mixer control settings Figure 10 When using the KSub with K Series full range loudspeakers NORMAL polarity will result in the best bass response IF the full range loudspeakers are sitting on or very close to the subwoofers If the subwoofers are some distance away from the full range loudspeakers polarity change may be of benefit Start with all subwoofer POLARITY switches in the NORMAL position Then with the system at or near expected operating levels change the polarity of each subwoofer INDIVIDUALLY Walk around the venue and assess the overall bass response Select the polarity that results in the best overall system bass response When using only one KSub and connecting a LEFT and RIGHT stereo signal start with the polarity switch in the NORMAL position With the system at a reasonable level change th
12. T The installation points may also be used with any forged shoulder eyebolt with an M10 thread provided the length of the thread is no more than 0 8 inch 20 mm A Ensure all pick point fasteners are installed and correctly tightened in order to maintain enclosure s rated strength Use either QSC s M10 forged shoulder eye bolts contained in K SERIES M10 KIT or an M10 forged shoulder eyebolt with a thread length no more than 0 8 inch 20 mm Contact QSC Technical Services department for complete information K10 K12 Cooling in Installed Applications This is a self powered loudspeaker containing an internal power amplifier that produces heat Allow a minimum of 6 152 mm clearance at cabinet back for convection cooling Keep anything that might restrict airflow away from the rear of the enclosure i e draperies fabric etc A Do not install enclosures with their rear panels exposed to direct sunlight Direct sunlight will heat the amplifier module and reduce its ability to produce full output Install sunshades if the application merits Maximum ambient temperature for full performance to specification is 50 C 122 F Do not install enclosures where exposed to rain or other water sources The enclosure is not weatherproof Outdoor installations must pro
13. Y un 7 power __OFF ye f N LINE IN B Figure 11 FRONT LED humr AN pwr IC REMOTE G STBY LIMIT E EZE POWER __OFF svis lt LINE H Figure 12 Remote Gain Attenuator A3 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 Mm pin between 5V provided on 5V pin and ground Fr pin the volume can be linearly controlled The voltage on the Mm pin can be created by using a potentiometer or provided from an external source Many K Series systems can be controlled from a single poten tiometer by connecting the Mm pins of multiple K Series speakers together A relay or manual connection can be made between the Mim pin and the 777 pin to put the K Series system into standby mode after 5 minutes A WARNING Do not put more than 5V or less than ground on the Mm pin or else damage may occur Do not connect the Mm pin directly to the 5V pin Schematics of Proper Wiring for Gain Attenuator When using a single potentiometer for one loudspeaker Figure 14 When using a single potentiometer for multiple loudspeaker Figure 15 Wiring to the 3 pin Euro connector Figure 16 Figure 14 Figure 15 BV mA 15 5 gt ch am Il cw O AN O cew FRONT LED LIMIT i pwn 1 REMOTE GAIN sT8Y uman n OI LS a lt LINE IN B F
14. e VA OFF e 1008 GAIN A Figure 5 OFF 10dB GAIN A Figure 6 Balanced Inputs Connect to the plug as shown 1 Shield ground 3 Minus Ground L 2 Plus Inverting Input gt 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 1 Shield ground 3 Minus Ground lh 2 Plus x Non inverting Input P Input Connections KSub MODE POLARITY FRONT LED NORMAL norma LIMIT pwr D REMOTE cain DEEP E J REVERSE Osmy uwan EE O power OFF 5V ma LINE INA gt LINE IN B Channel B Line Input Combination XLR M l a WF KEY and 1 4 Phone Jack Channel A Line Input Combination XLR M and 1 4 Phone Jack f N Green Signal Present LED Channel A and B Mixed Gain Knob The KSub is designed to accept Line Level inputs connected either by male XLR or 1 4 phone TS or TRS jack If signal is connected to both Channel and Channel B they will be summed together The gain of the summed signal is then controlled using the Gain knob This affects the amount of signal sent to the amplifier and then to the loudspeaker components The green SIGNAL LED will illuminate when signal is present regardless of the amount of gai
15. e POLARITY switch and evaluate which polar ity results in the most low frequency output Additional Features Standby All K Series models are equipped with an automatic standby feature to conserve energy when the systems are not in use If no signal is present on any input of a K Series system or the gain knob is turned to off for five minutes the power amplifier will go into standby and the green STANDBY LED will illuminate No other LEDs will illuminate when the unit is in standby this includes both the Rear Power LED and the Front Power LED In this mode the amplifier will be powered down A small amount of voltage will continue to flow from the AC power source into the power supply of the K Series power module This voltage will keep the power supply and DSP awake to reduce turn on time when the system is brought out of standby The power up time of the amplifier is negligibly small and is shorter than the latency of the DSP so no signal will be cut off when the K Series system is brought out of standby A K Series loudspeaker can also be brought out of standby manually by turning the power switch off and then back on Front Power LED Functions The Front Power LED may be set to any of three modes by the rear mounted Power LED switch Figure 11 From the factory the Power LED switch is set to the PWR position The Front Power LED will illuminate when the power switch is in the ON position and the unit is not in Standby In the O
16. fan Thermal limiting Output overcurrent Overtemperature muting GuardRail Thermal limiting Excursion limiting Universal power supply 85 265 VAC 50 60 Hz 100 VAC 2 3 120 VAC 2 01 A 230 VAC 1 13 A Impact resistant ABS Black Paint Black powder coated 18 gauge steel 20 4 x 12 6 x 11 8 519 mm x 320 mm x 300 mm 77 x 11 x 10 6 450 mm x 280 mm x 269 mm 27 Ib 12 2 kg 32 Ib 14 5 kg K8 TOTE K8 YOKE K SERIES M10 KIT K10 TOTE K10 YOKE K SERIES M10 KIT Specifications subject to change without notice 20 23 7 x 14 x 14 603 mm x 356 mm x 356 mm 41 Ib 18 6 kg K12 TOTE K12 YOKE K SERIES M10 KIT aa 0 H 9 H 3 H 9 ES D KSub 4th Order Bandpass 2 x 12 cone transducers 48 Hz 134 Hz 44 Hz 148 Hz 130 dB peak Power Gain LF Mode Normal DEEP Polarity Normal Reverse e Front LED On Off Limit Power Signal Standby Limit Dual balanced female XLR 1 4 line level input Dual Balanced male XLR full range line level out Remote gain control e Locking IEC power connector Painted birch plywood Black textured paint 26 x 14 x 28 1 including casters 665 mm x 356 mm x 714 mm 74 Ib 33 6 kg KSub COVER aoc Mailing Address QSC Audio Products LLC 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 USA Telephone Numbers Main Number 714 754 6175 Sales amp Marketing 714 957 71
17. g or loss DEEP Taking advantage of the Excursion Limiter the DEEP Digital Extension and Excursion Processing algorithm functions as a highly musical and non distorting low frequency EQ circuit More on the DEEP function is available in the EQ section of this manual Intrinsic Correction Introduced on QSC Concert Touring products Intrinsic Correction is a proprietary process and set of signal processing algo rithms that address correctable characteristics of transducers and waveguides The net result is that any K Series system will present extraordinarily even and consistent energy throughout the physical listening area of the loudspeaker resulting in a very musical acoustically transparent system DSP User Functions Low frequency EQ On the K8 K10 and K12 there are three low frequency settings From the factory the switch is set to NORM This means that the loudspeaker system is producing a normal low frequency signal through the woofer This is the standard setting for most applications Figure 7 When using one of the top boxes with a subwoofer the switch should be moved to the EXT SUB position to engage the 100 Hz high pass filter It is also recommended that the 100 Hz high pass filter be engaged when using the K10 or K12 as a floor monitor to prevent excessive bass build up on the stage For extra low frequency extension and low end presence when using one of the top boxes without a sub move the switch to the
18. he input panel Channel A will accept MIC or Line Level inputs by connecting a male XLR cable or a male 1 4 phone cable either TS or TRS type may be used For MIC Level the MIC LINE selector switch must be in the MIC position Figure 5 When the selector switch is in the MIC posi tion activating the MIC Pre amp the yellow MIC level LED indicator will turn on The MIC setting should only be used if a microphone is connected directly to the MIC LINE input Note that the input does not provide phantom power The LINE setting should be used for most other audio inputs Figure 6 A The MIC setting should only be used if a microphone is connected directly to the MIC LINE input Using the MIC setting for other purposes may introduce distortion Care should be taken when switching to the MIC position as the output level will increase significantly when the switch is flipped Gain for signal delivered on the Channel A XLR 1 4 combination jack is set using the Channel A Gain knob This control sets the sensitivity of Channel A and thereby the amount of signal sent to the power amplifier and in turn to the loudspeaker components It also sets the amount of signal sent to the Post Gain Line Output The green SIGNAL LED will illuminate when signal is present regardless of the amount of gain as set by the Gain knob If the LED does not illuminate the input is not receiving any signal or the level of the signal is significantly low Check all connection
19. he top of the rocker switch to apply AC mains power to the powered loudspeaker Push in on the bottom of the rocker switch to turn the powered loudspeaker off When turned on the green STANDBY indicator LED and the red LIMIT limiter indicator LED on the rear panel will illuminate after a few seconds the red LIMIT indicator and the green STANDBY will extinguish and the blue POWER indicator LED will illuminate Rear LED POWER Indicator The blue LED POWER indicator on the rear panel will illuminate when the AC Power switch is in the ONT position the unit is not in standby the AC mains power cord is connected properly and the AC mains are functioning properly The rear LED POWER indicator will extinguish when the AC Power switch is in the off position AC mains power has been removed from the loudspeaker or the amplifier enters standby If the rear LED POWER indicator does not illuminate when the Power switch is placed in the on position during the first 5 minutes of power being applied verify the AC mains line cord is properly attached to the loudspeaker and plugged into the AC outlet Verify the outlet is functioning properly If the AC mains cordset is serviceable and the AC mains outlet is operating properly but the loudspeaker fails to operate the loudspeaker may require servicing Contact QSC s Technical Services department System Power Sequencing A Proper power turn on turn off sequencing can help to prevent unexpected
20. igure 13 Figure 16 lt Applications Input Hookup Output Hookup GES e TD Output Hookup 17 Common Standalone Small System Mono ul Common Stereo System LEFT c RIGHT 0 0 m Li S Ze i 18 Dimensions K10 Top Top L 10 6 118 269 mm 300 mm FF le a Ty N O 177 20 4 450 mm 519 mm O ES KT iS f Side Front Side KSub Top Top Lod 14 G 356 mm per D D nn N A 14 28 1 356 mm 714 mm I U ji L I 23 7 603 mm Oo 26 A 665 mm IE gt H H ee l mas ES Front Side Front Side 19 Specifications Configuration Transducers
21. ith a dry cloth Allow a minimum of 6 152 mm clearance behind cabinet for convection cooling Keep anything that might restrict airflow from the rear of the enclosure i e draperies fabric etc Do not block any ventilation opening This product contains an internal power amplifier that produces heat Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the grounding type plug on the three pronged Edison style power cable The grounding plug has two blades and a grounding prong The third prong is provided for your safety If the provided plug does not fit your outlet consult an electrician for the replacement of the obsolete outlet Do not cut off the grounding plug or use an adapter that breaks the grounding circuit This apparatus must be properly grounded for your safety Protect the power cord from being walked on or pinched particularly plugs convenience receptacles and the point where they exit from the apparatus 11 The appliance coupler is the AC mains disconnect and should remain readily operable after installation Use only attachments accessories specified by QSC Audio Products LLC Use only with hardware brackets and components sold with the apparatus or by OSC Audio Products LLC Unplug the apparatus during lightning storms or when unused for long periods of time Refer all ser
22. mits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Copyright 2009 QSC Audio Products LLC USA and Foreign Patents Pending QSC is a registered trademark of QSC Audio Products LLC QSC and the QSC logo are registered with the U S Patent and Trademark Office All trademarks are the property of their respective owners Package Contents K8 K10 K12 KSub 1 Loudspeaker system 1 Subwoofer system 1 Locking NEMA 5 15 power cable 1 Locking NEMA 5 15 power cable 1 Locking CEE 7 4 power cable 1 Locking CEE 7 4 power cable 1 User Manual CD 1 User Manual CD
23. n as set by the Gain knob If the LED does not illuminate the input is not receiving any signal or the level of the signal is significantly low Check all connections and the status of the device delivering the signal 11 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 Additionally signal delivered on the RCA phono jacks is not present on the Channel B direct line level output The Post Gain Line out female XLR connector is a mixed output of Channel A Channel B and the RCA phono jacks This mix is affected by gain knobs on both Channel A and Channel B and the MIC LINE switch on Channel A but the output level is still Line Level A WARNING Do not connect the POST GAIN LINE OUTPUT of a K Series system to any INPUT of the SAME UNIT This output is designed to send signal to OTHER K Series units or to other audio equipment Failure to follow this warning may result in very unpleasant sounds produced at extremely high output volumes Output Connections KSub Al 9 V e Channel B Line Be Level Direct Output a Channel A Line Level
24. s and the status of the device delivering the signal Channel B will accept Line Level input only by connecting a male XLR cable or a male 1 4 phone cable either TS or TRS type may be used Channel B will also accept mono or stereo Line Level input on a pair of RCA phono jacks Gain for signal delivered on the Channel B line level XLR 1 4 combination jack and RCA phono jacks is set using the Channel B Gain knob The Channel B Gain knob will control the input gain of Channel B as well as the amount of signal sent to the Post Gain Line Output The green SIGNAL LED will illuminate when signal is present regardless of the amount of gain as set by the Gain knob If the LED does not illuminate the input is not receiving any signal or the level of the signal is significantly low Check all connections and the status of the device deliver ing the signal Note Unless the gain controls associated with all active inputs are set to 0 dB the output signal from the Post Gain Line Output will not be at the same level as the input signal If a slave speaker is intended to playback at the same level as the master speaker the gain control on the slave speaker should be set to 0 dB Stereo input received at the RCA input jacks will be summed to mono 10 Channel B Line Input Combination XLR M and 1 4 Phone Jack Channel B Line Input Phono RCA Jacks Channel B Green Signal Present LED MIC LINE IN A gt Say gt w
25. tage A threaded pole cup on the top of the enclosure accepts a M20 threaded 35 mm loudspeaker mounting pole There are additional M20 speaker poles available from third party suppliers Rubber feet on the enclosure s bottom help to minimize enclosure movement during operation Do not pole mount or stack more than one enclosure on top of the KSub enclosure As the casters will wear during normal use it may be required to insert small foam pieces between the wheels and frames to minimize rattling at high output levels A K8 WARNING Do not use a loudspeaker support pole longer than 31 inch 787 mm when supported by the KSub subwoofer A K10 WARNING Do not use a loudspeaker support pole longer than 28 5 inch 724 mm when supported by the KSub subwoofer A K12 WARNING Do not use a loudspeaker support pole longer than 26 5 inch 673 mm when supported by the KSub subwoofer K12 K10 K8 24 5 K SERIES 24 5 K SERIES 24 K SERIES 622 mm POLE 622 mm POLE 612 mm POLE pome p pr KSub KSub l KSub LEL 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 KI
26. uipment 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 cor rected Use only hardware which is rated for the loading conditions of the installation and any possible short term unexpected overloading Never exceed the rating of the hardware or equipment Consult a licensed professional engineer regarding physical equipment installation Ensure that all local state and national regulations regarding the safety and operation of loudspeakers and related equipment are understood and adhered to Recommended Deployment K8 The K8 was designed to sit on the floor stage subwoofer enclosure be suspended or be pole mounted on a 35 mm diameter loudspeaker sup port pole When pole mounted to the KSub pole length must not exceed 31 inch 787 mm K10 The K10 was designed to sit on the floor stage subwoofer enclosure be suspended or be pole mounted on a 35 mm diameter loudspeaker support pole When pole mounted to the KSub pole length must not exceed 28 5 inch 724 mm K12 The K12 was designed to sit on the floor stage subwoofer enclosure be suspended or be pole mounted on a 35 mm diameter loudspeaker support pole When pole mounted to the KSub pole length must not exceed 26 5 inch 673 mm KSub The KSub was designed to sit on the floor or on the s
27. vicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Before placing installing rigging or suspending any loudspeaker 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 and should be immediately corrected Use only hardware which is rated for the loading conditions of the installation and any possible short term unexpected overloading Never exceed the rating of the hardware or equipment Consult a licensed professional engineer when any doubt or questions arise regarding a physical equipment installation The appliance shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus 2 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
28. vide protection from the elements 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 If the QSC supplied cord becomes lost or damaged a standard replacement 18 gauge IEC power cord may be used However the latching system will only function with a V LOCK power cord available from QSC Audio Products LLC The K Series is fed by a universal power supply This power supply is capable of operating the system with input AC power voltages ranging from 85 VAC to 265 VAC at 50 60 Hz There are multiple power cables supplied for this reason Use only the power cable that is correct for your location You may discard any other power cables find an appropriate recycling opportunity or keep them if travel to other regions with the K Series product is likely AC Mains Disconnection Turn the AC power switch to the off position To remove the AC mains cord grasp the IEC connector s plastic body press the yellow latch release but ton and pull removing the connector from the socket Power Switch Push in on t
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