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Warning:

 To reduce the risk of fire or electric shock, do not

expose this unit to rain or moisture.

The lightning flash with an 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 electric shock to persons.

The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying
the product.

Do not place this unit on an unstable cart, stand or tripod, bracket
or table. The unit may fall, causing serious injury to a child or adult
and serious damage to the unit. Use only with a cart, stand, tripod,
bracket or table recommended by the manufacturer or sold with
the unit. Any mounting of the device on a wall or ceiling should
follow the manufacturer’s instructions and should use a mounting
accessory recommended by the manufacturer.

An appliance and cart combination should be moved with care.
Quick stops, excessive force and uneven surfaces may cause the
appliance and cart combination to overturn.

Read and follow all the safety and operating instructions before
connecting or using this unit. Retain this notice and the owners
manual for future reference.
All warnings on the unit and in its operating instructions should be
adhered to.

Do not use this unit near water; for example, near a bath tub,
washbowl, kitchen sink, laundry tub, in a wet basement or near a
swimming pool.
The unit should be installed so that its location or position does not
interfere with its proper ventilation. For example, it should not  be
situated on a bed, sofa, rug or similar surface that may block the
ventilation openings; or placed in a built-in installation, such as a
bookcase or cabinet, that may impede the flow of air through its
ventilation openings.
The unit should be situated from heat sources such as radiators,
heat registers, stoves or other devices (including amplifiers) that
produce heat.
The unit should be connected to a power supply outlet only of the
voltage and frequency marked on its rear panel.

The power supply cord should be routed so that it is not likely to be
walked on or pinched, especially near the plug, convenience 
receptacles, or where the cord exits from the unit.
Unplug the unit from the wall outlet before cleaning. Never use
benzine, thinner or other solvents for cleaning. Use only a soft
damp cloth.
The power supply cord of the unit should be unplugged from the
wall outlet when  it is to be unused for a long period of time.

Care should be taken so that objects do not fall, and liquids are not
spilled into the enclosure through any openings.

This unit should be serviced by qualified service personnel when:
A. The power cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the unit; or
C. The unit has been exposed to rain or liquids of any kind; or
D. The unit does not appear to operate normally or exhibits a
    marked change in performance; or
E. The device has been dropped or the enclosure damaged.

DO NOT ATTEMPT SERVICING OF THIS UNIT

YOURSELF.  REFER SERVICING TO QUALIFIED

SERVICE PERSONNEL

Upon completion of any servicing or repairs, request the service
shops assurance that only Factory Authorized Replacement Parts
with the same characteristics as the original parts have been used,
and that the routine safety checks have been performed to
guarantee that the equipment is in safe operating condition.
REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN 
FIRE, ELECTRIC SHOCK OR OTHER HAZARDS.

ATTENTION

POUR …VITER LES CHOC ELECTRIQUES, INTRODUIRE LA
LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUíAU
FOND.

CAUTION

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT FULLY INSERT.

If an indoor antenna is used (either built into the set or installed
separately), never allow any part of the antenna to touch the metal
parts of other electrical appliances such as a lamp, TV set etc.

CAUTION

POWER LINES

Any outdoor antenna must be located away from all power lines.

OUTDOOR ANTENNA GROUNDING

If an outside antenna is connected to your tuner or tuner-
preamplifier, be sure the antenna system is grounded so as to
provide some protection against voltage surges and built-up static
charges. Article 810 of the National Electrical Code, ANSI/NFPA No.
70-1984, provides information with respect to proper grounding of
the mast and supporting structure, grounding of the lead-in wire to
an antenna discharge unit, size of grounding conductors, location 
of antenna discharge unit, connection to grounding electrodes and
requirements for the grounding electrode.

a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2)
    aluminium, No. 17 AWG (1.0mm2) copper-clad steel or bronze
    wire, or larger, as a ground wire.
b. Secure antenna lead-in and ground wires to house with stand-off
    insulators spaced from 4-6 feet (1.22 - 1.83 m) apart.
c. Mount antenna discharge unit as close as possible to where lead-
    in enters house.
d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper,
    or the equivalent, when a separate antenna-grounding electrode
    is used. see NEC Section 810-21 (j).

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL 
ELECTRICAL CODE INSTRUCTIONS CONTAINED IN 
ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT.

NOTE TO CATV SYSTEM INSTALLER: This reminder is
provided to call the CATV system installers attention to
Article 820-40 of the National Electrical Code that provides
guidelines for proper grounding and, in particular, specifies
that the ground cable ground shall be connected to the
grounding system of the building, as close to the point of
cable entry as practical.

CAUTION

RISK OF ELECTRIC

SHOCK DO NOT OPEN

ATTENTION:

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION: 

TO REDUCE THE RISK OF ELECTRIC

SHOCK, DO NOT REMOVE COVER (OR BACK). NO

USER SERVICEABLE P

ARTS INSIDE. REFER SER

VICING

TO QUALIFIED SERVICE PERSONNEL.

IMPORTANT SAFETY INSTRUCTIONS

1. “An apparatus with Class I construction shall be connected to
     a mains sockets outlet with protective earthing connection.”
2. “Where the mains plug or an appliance coupler is used as the
     disconnect device, the disconnection device shall remain readily 
     operable.”
3. “1A fuse is used to US market, voltage will be set to 115V before
     shipment: 500mA fuse is used to European market, voltage will 
     be set to 230V before shipment.”

Summary of Contents for KRK10s

Page 1: ...KRK10s SUBWOOFER USER GUIDE ...

Page 2: ...or the enclosure damaged DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF REFER SERVICING TO QUALIFIED SERVICE PERSONNEL Upon completion of any servicing or repairs request the service shops assurance that only Factory Authorized Replacement Parts with the same characteristics as the original parts have been used and that the routine safety checks have been performed to guarantee that the equipment ...

Page 3: ... and musicians Your KRK subwoofer delivers world class performance at a price that makes this a truly uncommon value Contents World Class Performance in Studio Reference Monitors Introduction 1 Unpacking 2 KRK Systems Design Philosophies 3 System Controls 5 Connecting Your System 6 Hooking Up Your Subwoofer Stereo Systems 7 Subwoofer Placement and Set Up 9 Hooking Up Your Subwoofer 5 1 Surround 11...

Page 4: ... and to ensure correct operation of this product please take a moment to read the IMPORTANT SAFETY PRECAUTIONS section CAUTION Never remove the rear panel of the subwoofer To do so could result in electric shock A qualified technician should perform any repair or service to the electronics This product is capable of producing sounds at a volume that could potentially be damaging to hearing and res...

Page 5: ... After obtaining a RMA from KRK Systems all KRK Systems products in need of repair can be returned to the dealer where they were purchased or sent directly to KRK Systems For the safest possible return to KRK please use the shipping carton and packaging materials that were originally provided with your subwoofer KRK cannot be responsible for any damages incurred during the shipping process due to ...

Page 6: ...not just in your studio Port Design Our ports are designed to greatly reduce air flow turbulence for high performance audio reproduction The result Clear accurate and well designed low frequency extension Even More Accurate than Before We tweaked our speaker voicing to provide even more accurate frequency response for amazing audio reproduction using our custom made KRK drivers What you hear is wh...

Page 7: ... ERGO provides the ability to use up to two subwoofers with dedicated crossover functionality and delay compensation For more information about using ERGO with your monitoring system please visit our website at http www krksys com product_ergo php KRK s ERGO Room Correction System ...

Page 8: ...er Setup and Placement section in order to determine the correct switch position for your monitoring system and room Using the Ground Lift Engaging the ground lift switch can sometimes reduce ground loop noise in your system By providing an AC mains ground on the KRK10s and proper installation in a quiet studio environment the system is happily quiet However noise will be induced if the monitor is...

Page 9: ... Changing Voltage To change the voltage remove the power cord and slide the voltage selector to the desired voltage setting Please note that when making voltage changes the fuses will have to be replaced refer to the Changing Fuses section below Changing Fuses Under normal operation the fuses should not blow A blown fuse usually indicates an overload or fault condition To change the fuse remove th...

Page 10: ... subwoofer to the line level inputs of your full range speaker Hooking Up Your Subwoofer Stereo Systems 1 4 Mono Phono Plug XLR Connector Sleeve Tip Pin 1 Shield Sleeve Shield Pin 2 Tip Pin 3 Ring On Stereo Plug or Sleeve On Mono Plug Pin 2 Hot to 1 4 Stereo Phono Plug TRS Tip Ring Sleeve Ring Sleeve Tip 7 Subwoofer Hook Up with Active Monitors If you are using active powered monitors simply use a...

Page 11: ...be a XLR connector but if need be you can use the other connections providing the amplifier will accept them at the amp input Connect the power amplifier to the speakers as you normally would Do not attempt to hook the speaker output of the monitor amplifier to the input of the subwoofer By doing so you run the risk of damaging the equipment Mixing Console with TRS or XLR Monitor Outputs From Cons...

Page 12: ...e subwoofer s output will interact with the other monitor speakers in the room it is important to consider the subwoofer and near field speakers as a total system At this stage you have only the subwoofer operating Once you find its optimum position and settings you can turn on the complete monitoring system to verify that all components interact properly What you are attempting to do is find a pl...

Page 13: ...ofer level control until it matches the same 85dB SPL level Turn up the low pass filter control on the subwoofer to 130Hz This allows the bass energy between the near field monitors and subwoofer to overlap While listening to it from the mixing position route pink noise with a band pass of 60 to 120Hz to the speaker system Have someone flip the phase switch between 0 and 180 degrees and then back ...

Page 14: ...Notice from Figure 3 that for professional use a separate 6 channel level control box is required between the mix down deck and the monitor speakers This is because few small format mixing consoles have provisions to switch and level manage a 6 channel audio signal The simplest and perhaps best way to accomplish this is to use an external 5 1 level controller It is placed between the outputs of th...

Page 15: ...FE channel is set with an additional 10dB of monitoring gain To set this level we recommend using 2 octave wide band passed pink noise from 20 to 80Hz for the LFE channel and 500 to 2 000Hz for the near field speakers After adjusting each near field monitor one at a time to 85dB SPL adjust the LFE channel 10dB louder to 95dB SPL Center Left Right 30 30 SPL Meter 110 110 LFE LFE Left Surround Right...

Page 16: ... listeners should realize that their studio monitoring systems must be able to reproduce sufficient low frequencies so they can avoid recording undesirable subsonic information Without such studio monitoring it is possible to release a mix with infrasonic problems such as pops air conditioner rumble traffic noise footsteps etc These subsonic noises will be eliminated masked by the natural high pas...

Page 17: ...k end of the paper clip into the gill near the edge and gently pull the grill toward you 3 As you see the grill start to separate repeat this procedure around the grill edge until you can easily pull the grill away from the cabinet 4 Once you remove the grill pull the grill s rubber gasket away from the grill 5 Now insert the grill s rubber gasket into the groove in the cabinet that the grill came...

Page 18: ...g to the next steps Check to see if all other audio devices using the same AC outlet are still operating Make sure that The audio source cable is plugged into both the source output and the unit s input The System Gain pot is turned up fully clockwise 6dB The signal source e g mixing console work station CD player etc is turned up to a level that can properly send a signal to the monitors If one o...

Page 19: ...partment can be reached at 954 316 1580 Here are some suggestions that will help you eliminate these undesirables from your system Make sure that the power cord is plugged snugly into the IEC socket on the rear of the unit Check the connections between the signal source and the unit The sub and monitor s XLR and TRS connectors are a completely balanced system If you re connecting an unbalanced out...

Page 20: ...amages incurred during the shipping process due to poor packing Make sure to insure your shipment If your subwoofer is out of warranty and you would like a quotation prior to servicing your product please call for a RMA number No service will be performed on your unit without this number For replacement part quotes please call 954 316 1580 Shipping Instructions 17 ...

Page 21: ...240V FEATURES KRK10s 34Hz 50Hz to 130Hz Variable 1 5dB 110dB Music and 113dB Peak 10 High Excursion Glass Aramid Composite Woofer 15 x 14 x 16 1 16 38 2 cm x 35 5 cm x 40 8 cm 40 2 lbs 18 24 kgs 150W RMS 98dB 08 10kohm 10kohm 80Hz Fixed 50Hz 130Hz Variable 4 0A 250V Slow Blow 2 0A 250V Slow Blow XLR 1 4 TRS Connectors RCA Connector IEC Mains Connector System Volume Control LED Power Indicator Subw...

Page 22: ...LITK00043 4 3 2009 Our mission is to innovate design and deliver superior audio products that form the bridge between an artistic vision and a realized dream w w w k r k s y s c o m ...

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