QSC KSub, K10, K8, K12 Owner's Manual

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-D

*TD-000280-00*

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.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation and maintenance (servicing) instructions in this manual.

1. Read these instructions.

2. Keep these instructions.

ENG ENG

3. Heed all warnings.

4. Follow all instructions.

5. WARNING: To prevent ﬁre or electric shock, do not expose this equipment to rain or moisture. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. 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.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliﬁers) that produce heat.

9. 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.

10. 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.

12. Use only attachments/accessories speciﬁed by QSC Audio Products, LLC.

13. Use only with hardware, brackets, and components sold with the apparatus or by QSC Audio Products, LLC.

14. Unplug the apparatus during lightning storms or when unused for long periods of time.

15. Refer all servicing 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.

16. 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.

17. Consult a licensed, professional engineer when any doubt or questions arise regarding a physical equipment installation.

18. 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.

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 via prepaid transportation with a copy of proof of purchase (i.e., 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.

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 limits 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:

• 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.

• Consult the dealer or an experienced radio/TV technician for help.

Package Contents

K8, K10, K12

(1) Loudspeaker system

(1) Locking power cable

(1) Euro-style Connector Plug, 3-pin

(1) K Series Hookup Drawings

(1) Warning Information Sheet

KSub

(1) Subwoofer system

(1) Locking power cable

(1) Euro-style Connector Plug, 3-pin

(1) M20 threaded loudspeaker pole

(1) K Series Hookup Drawings

(1) Warning Information Sheet

Features

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

ENG ENG

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

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

KSub

1. Birch plywood enclosure

2. Front power LED

3. Acoustic port

4. Cast aluminum handles

5. Power module

6. M20 threaded pole receptacle

7. 3" heavy duty casters

8. Slip-resistant feet

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). (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 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 suspension 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)

ENG ENG

For extra low-frequency extension and enhancement, the KSub is perfectly 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.

– Figure 1 –

The KSub has four large casters for maximum portability. The pole socket 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

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. 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 stage. 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.

K8 WARNING! Do not use a loudspeaker support pole longer than 31 inch (787 mm) when supported by the KSub subwoofer.

K10 WARNING! Do not use a loudspeaker support pole longer than 28.5 inch (724 mm) when supported by the KSub subwoofer.

K12 WARNING! Do not use a loudspeaker support pole longer than 26.5 inch (673 mm) when supported by the KSub subwoofer.

K10

K SERIES

POLE

24"

(612 mm)

24.5"

(622 mm)

K SERIES

POLE

24.5"

(622 mm)

K12

K SERIES

POLE

KSub

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. 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).

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.

ENG ENG

K8 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...).

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 provide 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 100 - 240 VAC at 50 – 60 Hz.

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 button and pull, removing the connector from the socket.

Power Switch

Push in on the 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 “ON” 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

Proper power turn on/turn off sequencing can help to prevent unexpected 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 Combination XLR-M and 1/4" Phone Jack

Channel A MIC Level Yellow LED Indicator

Channel B Line Input Combination XLR-M and 1/4" Phone Jack

Channel A MIC/Line Level Switch

Channel A Green Signal Present LED

ENG ENG

Channel A Gain

Channel B Line Input Phono (RCA) Jacks

Channel B Green Signal Present LED

Channel B Gain

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 the 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 position, 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)

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 connections 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 delivering 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.

– Figure 5 –

– Figure 6 –

*Stereo input received at the RCA input jacks will be summed to mono.

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.

1 = Shield (ground) 3 = Minus (-) 2 = Plus (+)

Ground

Non-inverting Input

Input Connections

KSub

Channel B Line Input Combination XLR-M

Channel A Line Input Combination XLR-M and 1/4" Phone Jack

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 A 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 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 delivering the signal.

and 1/4" Phone Jack

Green Signal Present LED

Channel A and B Mixed Gain Knob

Output Connections

K8, K10, K12

Channel A Line Level Direct Output

Channel B Line Level Direct Output

Channel A Gain Knob

Post-Gain Line Output

Channel B Gain Knob

ENG ENG

Both Channel A and Channel B have discreet direct outputs on male 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 male 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.

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

Channel B Line Level Direct Output

Channel A Line Level Direct Output

Channel A and B Mixed Gain Knob

Both Channel A and Channel B have discrete direct outputs on male 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.

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, limiting 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 algorithms 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 “DEEP” setting. This will engage the proprietary DEEP algorithm, providing increased lowfrequency 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

– Figure 7 –

– Figure 8 –

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 setting 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.

– 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 the POLARITY switch and evaluate which polarity results in the most low-frequency output.

– Figure 10 –

ENG ENG

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 “OFF” 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.

– Figure 11 –

• 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 loudspeaker. (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 minimum, your K Series loudspeaker requires service by qualiﬁed personnel.

– Figure 12 –

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.

A relay or manual connection can be made between the pin and the pin to put the K Series system into standby mode after 5 minutes.

WARNING: Do not put more than +5V or less than ground on the pin or else damage may occur. Do not connect the pin directly to the 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 13 –

– Figure 16 –– Figure 14 – – Figure 15 –

Applications

Input Hookup

ENG ENG

Output Hookup

Common Standalone Small System (Mono)

ENG ENG

Common Stereo System

LEFT RIGHT

Dimensions

Top

11"

280 mm

17. 7"

450 mm

10.6"

269 mm

Front Side

K10

Top

12.6"

320 mm

20.4"

519 mm

11.8"

300 mm

Front Side

K12

Top

14"

356 mm

23.7"

603 mm

14"

356 mm

Front Side

KSub

Top

14"

356 mm

26"

665 mm

Front Side

28.1"

714 mm

Speciﬁcations

K8 K10 K12 KSub

Configuration Trapezoidal 2-way Multipurpose 2-way Multipurpose 2-way 4th Order Bandpass

Transducers Low-frequency High-frequency

Frequency Response (-6 dB) 66 Hz – 18 kHz 60 Hz – 18 kHz 52 Hz – 18 kHz 48 Hz – 134 Hz

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

ENG ENG

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 SPL (1 meter) 127 dB peak 129 dB peak 131 dB peak 130 dB peak

Amplifiers Power Output 1000 W Class D

Input Impedance (Ω) 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)

Indicators 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

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

AC Power Consumption 1/8 Power

Front LED (On/Off/Limit)

full range line level out • Balanced male XLR “mix” out • Stereo RCA line level input • Remote gain control • Locking

IEC power connector

100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A

Power • Gain • LF Mode (Normal/ DEEP™) • Polarity (Normal/Reverse)

• Front LED (On/Off/Limit)

Dual balanced female XLR / ¼"

line level input • Dual Balanced male XLR full range line level out • Remote gain control • Locking IEC

power connector

Enclosure Impact resistant ABS Painted birch plywood

Finish Black Paint Black textured 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) 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

Specifications subject to change without notice.

20.4" x 12.6" x 11.8" 519 mm x 320 mm x 300 mm

K10 TOTE • K10 YOKE • K SERIES M10 KIT

23.7" x 14" x 14" 603 mm x 356 mm x 356 mm

K12 TOTE • K12 YOKE • K SERIES M10 KIT

26" x 14" x 28.1" (including casters) 665 mm x 356 mm x 714 mm

KSub COVER

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

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.

Tilt-Direct, Intrinsic Correction, DEEP and GuardRail are all trademarks of QSC Audio Products, LLC., All trademarks are the property of their respective owners.

K Series User Manual 07/21/11

Serie K

Manual del usuario

K8 – Sistema de altavoces activo de dos direcciones, con inclinación de 105°, de 1000 W y 8" (200 mm)

K10 – Sistema de altavoces activos de dos direcciones, con inclinación de 90°, de 1000 W y 10" (250 mm)

K12 – Sistema de altavoces activo de dos direcciones, con inclinación de 75° , de 1000 W y 12" (300 mm)

KSub – Sistema de subwoofer activo, de 12" (300 mm) y 1000 W, de paso de banda doble de 4.° orden

IMPORTANTES PRECAUCIONES DE SEGURIDAD Y EXPLICACIÓN DE LOS SÍMBOLOS

¡ADVERTENCIA!

PRECAUCIÓN: PARA REDUCIR EL RIESGO DE DESCARGA ELÉCTRICA, NO QUITE LA CUBIERTA DEL AMPLIFICADOR. EL INTERIOR NO CONTIENE PIEZAS A LAS QUE EL USUARIO PUEDA DAR SERVICIO. REFIERA EL SERVICIO A PERSONAL CALIFICADO.

El símbolo de un rayo con punta de ﬂecha dentro de un triángulo equilátero tiene el propósito de alertar al usuario de la presencia de voltaje “peligroso” no aislado dentro de la caja del producto, que puede ser de suﬁciente magnitud para constituir un riesgo de descarga eléctrica a los seres humanos.

El signo de exclamación dentro de un triángulo equilátero tiene la intención de alertar al usuario de la presencia de importantes instrucciones de operación y mantenimiento (servicio) en este manual.

1. Lea estas instrucciones.

2. Conserve estas instrucciones.

SPA SPA

3. Observe todas las advertencias

4. Siga todas las instrucciones

5. ADVERTENCIA: Para prevenir incendios o descargas eléctricas, no exponga este equipo a la lluvia ni a la humedad. No use este aparato cerca del agua.

6. Límpielo sólo con un paño seco.

7. Deje una separación mínima de 6” (152 mm) detrás de la caja del sistema de enfriamiento por convección. Mantenga cualquier elemento que pudiera restringir el ﬂujo de aire lejos de la parte posterior de la caja (por ejemplo, cortinas, telas, etc.). No obstruya ninguna abertura de ventilación. Este producto contiene un ampliﬁcador interno de potencia eléctrica que produce calor.

8. No lo instale cerca de fuentes de calor tales como radiadores, registros térmicos, estufas ni otros aparatos (incluso ampliﬁcadores) que produzcan calor.

9. No anule la característica de seguridad del enchufe con conexión a tierra del cable eléctrico de tres patillas de tipo “Edison”. El enchufe con conexión a tierra tiene dos hojas y una patilla de conexión a tierra. La tercera patilla se suministra para su seguridad. Si el enchufe que se le proporciona no cabe en su tomacorriente, consulte con un electricista para reemplazar el tomacorriente obsoleto. No corte la patilla de conexión a tierra ni utilice un adaptador que anule el circuito de conexión a tierra. Este aparato debe estar correctamente conectado a tierra para su seguridad.

10. Proteja el cable de alimentación para que no se camine sobre él ni se le comprima, particularmente en los enchufes, los receptáculos y el punto en donde éstos salen del aparato.

11. El acoplador del equipo es la desconexión de la línea principal de CA y debe permanecer fácilmente operable después de la instalación.

12. Use sólo piezas/accesorios especiﬁcados por QSC Audio Products, LLC.

13. Use sólo con herraje, soportes y componentes vendidos con el aparato o por QSC Audio Products,LLC.

14. Desenchufe el aparato durante tormentas eléctricas o cuando no lo vaya a usar durante periodos prolongados de tiempo.

15. Reﬁera todo el servicio a personal caliﬁcado. Es necesario dar servicio al aparato cuando sufra algún daño, como cuando se daña el cable de alimentación eléctrica o el enchufe, cuando se derraman líquidos o caen objetos sobre el aparato, cuando éste ha estado expuesto a la lluvia o humedad, cuando no opere normalmente o cuando se haya caído.

16. Antes de colocar, instalar, montar o suspender cualquier producto de altavoz, inspeccione todo el equipo físico, la suspensión, los gabinetes, los transductores, los soportes y el equipo asociado para detectar la existencia de daños. Cualquier componente faltante, corroído, deformado o no clasiﬁcado para carga podría reducir de manera signiﬁcativa la resistencia de la instalación, y deberá corregirse de inmediato. Use sólo herraje que esté clasiﬁcado para las condiciones de carga de la instalación y cualquier posible carga excesiva inesperada a corto plazo. Nunca exceda el valor nominal del equipo físico ni del dispositivo.

17. Consulte a un ingeniero profesional con la debida licencia cuando surjan dudas o preguntas referentes a la instalación física del equipo.

18. El equipo no debe quedar expuesto a goteo o salpicaduras y no deberán colocarse en su superﬁcie objetos llenos de líquido, tales como ﬂoreros.

Garantía (sólo para EE.UU.; para otros países, consulte con su vendedor o distribuidor)

Garantía limitada de 3 años de QSC Audio Products

QSC Audio Products, LLC (“QSC”) garantiza que sus productos estarán libres de materiales y mano de obra defectuosos durante un período de tres (3) años a partir de la fecha de la venta, y que reemplazará las piezas defectuosas y reparará los productos que no funcionen bien bajo esta garantía, cuando el defecto ocurra bajo condiciones normales de instalación y uso, –siempre y cuando la unidad se devuelva a nuestra fábrica o a una de nuestras estaciones autorizadas de servicio mediante transportación prepagada con una copia del comprobante de compra (esto es, el recibo de la compra). Esta garantía requiere que el examen del producto devuelto indique, en nuestra opinión, un defecto de fabricación. Esta garantía no se extiende a ningún producto que hubiera estado sometido a uso indebido, negligencia, accidente, instalación incorrecta, o en el que se hubiera quitado o modiﬁcado el código de la fecha. QSC tampoco será responsable por daños incidentales y/o emergentes. Esta garantía le otorga derechos legales especíﬁcos. Esta garantía limitada es libremente transferible durante el período de la misma.

El cliente podría gozar de derechos adicionales, que podrían variar de un estado a otro.

En caso de que este producto fuera fabricado para exportación y venta fuera de los Estados Unidos o sus territorios, entonces no será aplicable esta garantía limitada. La eliminación del número de serie en este producto, o la compra de este producto de un distribuidor no autorizado, anulará esta garantía limitada.

Esta garantía se actualiza periódicamente. Para obtener la versión más reciente de la declaración de garantía de QSC, visite www.qscaudio.com.

Comuníquese con nosotros al teléfono 800-854-4079 o visite nuestro sitio en Internet en www.qscaudio.com.

Declaración de la FCC

NOTA: Este equipo ha sido probado y se ha determinado que cumple con los límites de un dispositivo digital Clase B, en virtud de la parte 15 de las reglas de la FCC.

Estos límites están diseñados para proporcionar protección razonable contra interferencia dañina en una instalación residencial. Este equipo genera, utiliza y puede irradiar energía de radiofrecuencia y por lo tanto, si no se instala y utiliza de conformidad con las instrucciones, podría causar interferencia dañina para las radiocomunicaciones. Sin embargo, no hay garantía que no ocurrirá interferencia en una instalación en particular. Si este equipo interﬁere con la recepción de radio o televisión, lo cual se puede determinar encendiendo y apagando el equipo, se recomienda al usuario que trate de corregir la interferencia por uno de los siguientes métodos:

• Reoriente o reubique la antena receptora.

• Aumente la separación entre el equipo y el receptor.

• Conecte el equipo en un tomacorriente de un circuito diferente al cual está conectado el receptor.

• Consulte al distribuidor o a un técnico experimentado de radio o TV para solicitar ayuda.

Contenido del paquete

K8, K10, K12

(1) Sistema de altavoces

(1) Cable de alimentación bloqueante

(1) Enchufe conector de estilo europeo, de tres patillas

KSub

(1) Sistema de subwoofer

(1) Cable de alimentación bloqueante

(1) Poste roscado M20 para altavoces

(1) Diagrama de conexión de la K Series

(1) Advertencia Hoja de Información

(1) Enchufe conector de estilo europeo, de tres patillas

(1) Diagrama de conexión de la K Series

(1) Advertencia Hoja de Información

Características

1. Caja de ABS

2. Parrilla de acero

3. Indicador LED de encendido, en la parte delantera

4. Asas de aluminio fundido

5. Módulo de alimentación eléctrica

6. Puntos de instalación M10

7. Puntos de conexión del yugo M5

8. Casquillo para poste Tilt-Direct™ de ángulo doble

9. Patas antirresbalamiento

SPA SPA

K10

1. Caja de ABS

2. Parrilla de acero

3. Indicador LED de encendido, en la parte delantera

4. Asas de aluminio fundido

5. Módulo de alimentación eléctrica

6. Puntos de instalación M10

7. Puntos de conexión del yugo M5

8. Casquillo para poste Tilt-Direct™ de ángulo doble

9. Patas antirresbalamiento

K12

1. Caja de ABS

2. Parrilla de acero

3. Indicador LED de encendido, en la parte delantera

4. Asas de aluminio fundido

5. Módulo de alimentación eléctrica

6. Puntos de instalación M10

7. Puntos de conexión del yugo M5

8. Casquillo para poste Tilt-Direct™ de ángulo doble

9. Patas antirresbalamiento

KSub

1. Caja de madera contrachapada de abedul

2. Indicador LED de encendido, en la parte delantera

3. Puerto acústico

4. Asas de aluminio fundido

5. Módulo de alimentación eléctrica

6. Receptáculo del poste roscado M20

7. Ruedecillas de servicio pesado de 3"

8. Patas antirresbalamiento

Aplicaciones

La serie K ha sido diseñada principalmente para el refuerzo portátil de audio. Esto incluye una variedad de usos en refuerzo para artistas y presentadores. Los modelos K8, K10 y K12 están todos diseñados para funcionar bien en su propio audio de intervalo completo. Pueden usarse solos, en pares en estéreo, o en sistema distribuidos o con demora. Funcionan extraordinariamente bien, como sistemas principales de refuerzo y también como monitores de piso (únicamente los modelos K10 y K12).

(Figura 1)

Los modelos K8, K10 y K12 está todos equipados con un casquillo de poste de 35 mm que permite la utilización en un soporte para altavoces, o en un poste sobre un subwoofer. El casquillo para postes cuenta con el sistema Tilt-Direct™ de QSC para inclinar las cajas 7,5 grados hacia abajo al estar sobre el poste. (Figura 2)

Los modelos K8, K10 y K12 también tienen características diseñadas para diversos métodos de suspensión. Cuentan con insertos roscados M10 para suspensión con armellas. También hay accesorios de yugo (números de modelo: K8 YOKE, K10 YOKE, K12 YOKE) para cada modelo que pueden montarse a los lados de la caja o en su parte superior e inferior. Estos yugos permiten un montaje rígido a estructuras, así como la rotación del sistema de altavoces. (Figura 3)

– Figura 1 –

SPA SPA

Para la extensión y mejora de frecuencias extra bajas, el modelo KSub es un complemento perfecto al resto de la serie K. Los modelos K8, K10 y K12 tienen un ﬁltro seleccionable de paso alto para uso con el subwoofer. El KSub incluye un ﬁltro de paso bajo ﬁjo, de modo que pueda aceptar la entrada de rango completo.

El KSub tiene cuatro ruedecillas grandes para una máxima facilidad de transporte. El casquillo del poste en la parte superior de la caja cuenta con un inserto roscado M20. El poste incluido para el altavoz se atornilla en el casquillo para lograr un ajuste ﬁrme. (Figura 4)

– Figura 2 –

– Figura 3 –

– Figura 4 –

Instalación

Antes de colocar, instalar, montar o suspender cualquier producto de altavoz, inspeccione todo el equipo físico, la suspensión, las cajas, los

transductores, los soportes y el equipo asociado para detectar la existencia de daños. Cualquier componente faltante, corroído, deformado o no clasiﬁcado para carga podría reducir de manera signiﬁcativa la resistencia de la instalación o colocación. Cualquier condición de este tipo reduce gravemente la seguridad de la instalación y debe corregirse de inmediato. Utilice sólo el equipo físico clasiﬁcado para las condiciones de carga de la instalación y cualquier posible sobrecarga inesperada de poca duración.

Nunca exceda el valor nominal del equipo físico ni del dispositivo.

Consulte a un ingeniero profesional con la debida licencia con respecto a la instalación del equipo físico. Asegúrese de comprender y acatar todas las normativas locales, estatales y nacionales referentes a la seguridad y operación de altavoces y equipos relacionados.

Despliegue recomendado

K8: El modelo K8 fue diseñado para colocarse en el piso, escenario, caja de subwoofer, ser suspendido o montarse sobre un poste de soporte para altavoces

de 35 mm de diámetro.. Cuando se monta en un poste al KSub, la longitud del poste no debe ser superior a 31 pulgadas (787 mm).

K10: El modelo K10 fue diseñado para colocarse en el piso, escenario, caja de subwoofer, ser suspendido o montarse sobre un poste de soporte para

altavoces de 35 mm de diámetro.. Cuando se monta en un poste al KSub, la longitud del poste no debe ser superior a 28,5 pulgadas (724 mm)

K12: El modelo K12 fue diseñado para colocarse en el piso, escenario, caja de subwoofer, ser suspendido o montarse sobre un poste de soporte para

altavoces de 35 mm de diámetro.. Cuando se monta en un poste al KSub, la longitud del poste no debe ser superior a 26,5 pulgadas (673 mm).

KSub: El modelo KSub fue diseñado para apoyarse en el piso o escenario.. Una conexión roscada y acopada para poste en la parte superior de la caja

acepta un poste roscado M20 de 35 mm para el montaje de altavoces. Otros proveedores ofrecen otros postes M20 para altavoces. Las patas de caucho en la parte inferior de la caja ayudan a minimizar el movimiento de la caja durante la operación. No monte en poste ni apile más de una caja encima de la caja del KSub. Dado que las ruedecillas se desgastarán como consecuencia de un uso normal, es posible que se requiera insertar pequeñas piezas de espuma entre las ruedas y los bastidores para minimizar las vibraciones a niveles altos de salida.

¡ADVERTENCIA SOBRE EL MODELO K8! No utilice un poste de soporte para altavoces de una longitud mayor que 31 pulgadas (780 mm)

cuando esté soportado por el subwoofer KSub.

¡ADVERTENCIA SOBRE EL MODELO K10! No utilice un poste de soporte para altavoces de una longitud mayor que 28,5 pulgadas (724 mm)

cuando esté soportado por el subwoofer KSub.

¡ADVERTENCIA SOBRE EL MODELO K12! No utilice un poste de soporte para altavoces de una longitud mayor que 26,5 pulgadas (673 mm)

cuando esté soportado por el subwoofer KSub.

K10

K SERIES

POLE

24"

(612 mm)

24,5"

(622 mm)

K SERIES

POLE

24,5"

(622 mm)

K12

K SERIES

POLE

KSub

Puntos de suspensión integrados (instalaciones suspendidas)

Las cajas de los modelos K8, K10 y K12 cuentan con tres puntos de instalación M10 con clasiﬁcación de carga nominal.

Tal como se envía desde la fábrica, cada punto de suspensión tiene un enchufe de caucho instalado para conservar el diseño esbelto de la caja. Estos puntos de instalación están diseñados para uso con las armellas incluidas en el juego de accesorios disponible número de modelo K SERIES M10 KIT. Los puntos de instalación también pueden usarse con cualquier armella de brida forjada, con una rosca M10, siempre y cuando la longitud de la rosca no sea superior a 0,8 pulgadas (20 mm).

Asegúrese de tener instalados todos los sujetadores de los puntos de suspensión, apretados correctamente para mantener la resistencia

nominal de la caja. Utilice las armellas de brida forjadas M10 de QSC contenidas en el juego K SERIES M10 KIT o una armella de brida forjada M10 con una longitud de rosca no mayor que 0,8 pulgadas (20 mm). Comuníquese con el Departamento de Servicios Técnicos de QSC para obtener información completa al respecto.

SPA SPA

K8 K10 K12

Enfriamiento de las aplicaciones instaladas

Éste es un altavoz autoenergizado que contiene un ampliﬁcador interno de potencia que produce calor. Deje una separación mínima de 6" (152 mm) en la parte posterior de la caja para el enfriamiento por convección. Mantenga cualquier elemento que pudiera restringir el ﬂujo de aire lejos de la parte posterior de la caja (por ejemplo, cortinas, telas, etc.).

No instale las cajas con sus paneles posteriores expuestos a la luz solar directa. La luz solar directa calentará el módulo del ampliﬁcador y

reducirá su habilidad de producir una salida completa. Instale protectores solares en caso de que a aplicación lo requiera. La temperatura ambiente máxima para lograr un rendimiento completo de acuerdo con las especiﬁcaciones es de 50 °C (122 °F). No instale las cajas donde queden expuestas a la lluvia o a otras fuentes de agua. La caja no está diseñada a prueba de la intemperie. Las instalaciones al aire libre deben brindar protección contra los elementos.

Línea eléctrica de CA

Conecte la potencia de CA en el receptáculo IEC que se encuentra en la parte posterior del ampliﬁcador localizando el extremo conector IEC del cable eléctrico de CA e insertándolo completamente en la entrada IEC del módulo ampliﬁcador de potencia. NOTA: Apague el interruptor de CA antes de conectar la alimentación de CA.

El cable de alimentación V-LOCK tiene una característica especial de cierre a pestillo para evitar quitarlo por error. El enchufe y receptáculo IEC son de color azul de modo que el cable de alimentación pueda identiﬁcarse como un cable para altavoces serie K. Si el cable suministrado por QSC se pierde o daña, puede utilizarse un cable de alimentación IEC estándar de reemplazo, de calibre 18. Sin embargo, el sistema de cierre a pestillo sólo funcionará con un cable de alimentación V-LOCK disponible de QSC Audio Products, LLC.

La serie K está alimentada mediante una fuente universal de alimentación eléctrica. Esta fuente de alimentación es capaz de operar el sistema con voltajes de entrada de alimentación de CA de 100 – 240 VCA, a 50 – 60 Hz.

Utilice únicamente el cable de alimentación correcto para su ubicación.

Puede desechar los demás cables de alimentación, reciclarlos según corresponda o guardarlos si es probable viajar a otras regiones con el producto de la serie K.

Desconexión de la fuente principal de alimentación de CA

Coloque el interruptor de CA en la posición de apagado. Para retirar el cable eléctrico de la fuente de alimentación de CA, sujete el cuerpo plástico del conector IEC, pulse el botón de liberación del pestillo de color amarillo y hale del mismo, quitando el conector del receptáculo.

Interruptor eléctrico

Empuje hacia adentro la parte superior del interruptor basculante para aplicar el suministro eléctrico principal de CA al altavoz energizado. Empuje hacia adentro la parte inferior del interruptor basculante para apagar el altavoz alimentado.

Cuando está encendido, se iluminarán el LED indicador de espera (STANDBY) de color verde y el LED indicador limitador (LIMIT) de color rojo en el panel posterior; después de unos pocos segundos, se apagarán el indicador limitador de color rojo y el indicador de espera de color verde, y se iluminará el LED indicador de potencia (POWER) de color azul.

LED indicador de potencia (POWER) del panel posterior

El LED indicador de potencia (POWER) de color azul del panel posterior se iluminará cuando el interruptor de potencia de CA se encuentre en la posición de encendido (“ON”), la unidad no esté en espera, el cable eléctrico principal de CA esté correctamente conectado y el suministro eléctrico principal de CA esté funcionando de manera apropiada. El LED indicador de potencia (POWER) del panel posterior se apagará cuando el interruptor eléctrico de CA se encuentre en la posición de apagado (“off”), la alimentación eléctrica principal de CA se haya quitado del altavoz o el ampliﬁcador pase al modo de espera.

Si el indicador de potencia (POWER) del panel posterior no se ilumina cuando el interruptor correspondiente se coloca en la posición de encendido (“on”) durante los primeros 5 minutos de aplicación de potencia, veriﬁque que el cable del suministro eléctrico principal de CA esté correctamente conectado al altavoz y enchufado en el tomacorriente de CA. Veriﬁque que el tomacorriente esté funcionando correctamente.

Si el juego de cables de la alimentación principal de CA puede repararse y el tomacorriente principal de CA está funcionando correctamente, pero el altavoz no funciona, es posible que el altavoz requiera servicio técnico. Póngase en contacto con el Departamento de Servicios Técnicos de QSC.

Secuencia de arranque del sistema

La secuencia correcta de encendido/apagado puede ayudar a prevenir sonidos inesperados que provengan del sistema (explosiones, chasquidos,

golpazos). Estos sonidos inesperados pueden ser desagradables y causar una impresión negativa con respecto al profesionalismo general de la

presentación. Siempre siga la regla que indica que los altavoces son “los últimos en encenderse , los primeros en apagarse”.

Secuencia de encendido: Coloque el control de nivel de salida del mezclador (o de otra fuente de audio) que alimenta sus altavoces en su posición mínima. Encienda todos los dispositivos fuente (reproductores de CD, mezcladores, instrumentos), encienda el subwoofer, y luego encienda las “cajas superiores” (K8, K10, K12). Los controles de nivel del mezclador ahora pueden llevarse a un nivel más alto.

Secuencia de apagado: Apague las “cajas superiores” , apague el subwoofer, y luego apague los dispositivos fuente.

Si un altavoz serie K está siendo impulsado desde la salida de otra unidad serie K, deberá encenderse después de la señal de la unidad que lo alimenta, y apagarse antes de la señal de alimentación de la unidad.

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QSC KSub, K10, K8, K12 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual