K-array KRX402, KRX202, KRX802 User Manual
KRX PORTABLE SYSTEMS Ver. 1.3
KRX202, KRX402, KRX802
USER GUIDE
English
KRX202
KRX402
KRX802
KRX PORTABLE SYSTEMS Ver. 1.3
TABLE of CoNTENTS
SYMBoLS ................................................................................ 3
1. INTRoDUCTIoN ..................................................................... 4
2. KEY fEATURES ...................................................................... 4
3. APPLICATIoNS ....................................................................... 4
4. SAfETY INfoRMATIoN ............................................................ 5
5. UNPACKING ......................................................................... 7
6. PRoDUCT PHYSICAL ovERvIEw ................................................ 8
6.1 KR X 202 ........................................................................................... 8
6.2 KRX402 ........................................................................................... 9
6.3 KRX802 ..........................................................................................10
7. wIRING ............................................................................... 11
8. SYSTEM SETUP .................................................................... 12
9. AMPLIfIER ........................................................................... 15
9.1 AC PowER ....................................................................................... 15
9.2 voLTAGE REQUIREMENT ...................................................................... 15
9.3 CURRENT REQUIREMENT ..................................................................... 15
9.4 PRoTECTIoN CIRCUITRY ...................................................................... 16
9.5 SUBwoofER REAR PANEL ................................................................... 17
9.6 RS485 NETwoRK .............................................................................. 19
10. ToUCH SCREEN fUNCTIoNS ................................................. 20
11. SERvICE ........................................................................... 23
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KRX PORTABLE SYSTEMS Ver. 1.3
SYMBoLS
K-array declares that this device is in compliance with applicable CE
standards and regulations. Before putting the device into operation, please
observe the respective country-specific regulations!
Waste Electrical and Electronic Equipment (WEEE)
Please dispose of this product at the end of its operational lifetime by bringing
it to your local collection point or recycling center for such equipment.
This symbol alerts the user to the presence of recommendations about the
product’s use and maintenance.
Warning: DANGEROUS VOLTAGE.
Terminals marked with this symbol carry a risk of electric shock, therefore
external wiring connected to these terminals requires installation by a
qualified professional or the use of ready-made leads or cords.
This symbol alerts the user to the presence of recommendations about
product’s use and maintenance.
This device complies with the Restriction of Hazardous Substances Directive.
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KRX PORTABLE SYSTEMS Ver. 1.3
1. INTRoDUCTIoN
By combining the KX12 with active K-array subwoofers, three new portable systems - which differ in size
of the subwoofers and number of KX12 units used - have been added to K-array’s portfolio.
With powered subwoofers that maintain the same digital editing features of all K-array active subwoofers,
the KRX systems feature an integrated touch screen, providing intuitive control over the main DSP
functions, such as input/output levels, signal routing, offset delays for subwoofer and mid-high speaker
output (up to 10 ms each) and overall system delays (up to 330 ms). All DSP functions, including EQ,
can also be controlled remotely via software through USB or RS485 (3 pin XLR).
The KRX202 is the smallest of these three new systems and is composed of one KX12 standing on
a KMT18 18” subwoofer by means of an extendable pole and proper joining and stacking hardware.
Possible applications are DJ use, clubs and anywhere a lot of pressure is needed close to the speakers.
The KRX402 is the middle range system that delivers more pressure and a more extended bass response
than the smaller KRX202. It is comprised of two KX12 speakers paired with one 21” KMT21 subwoofer.
The largest of the three systems is the KRX802. With three KX12 speakers combined with a KMT218
subwoofer, the system converts into a line array that delivers maximum SPL, very low frequency and
best bass response. No longer a point source, the KRX802 covers larger distances with higher pressure
in larger venues.
2. KEY fEATURES
• Unique performance-to-size ratio
• Variable angle array design
• Stainless steel chassis
• Customized colors (only under specific request)
3. APPLICATIoNS
• Clubs, DJ set
• Portable and installed AV systems
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KRX PORTABLE SYSTEMS Ver. 1.3
4. SAfETY INfoRMATIoN
Read these instructions - Keep these instructions - Heed all warnings
Warning. Failure to follow these safety instructions could result in fire,
shock or other injury or damage to the device or other property.
The lighting flash with arrowhead symbol within
This symbol alerts the user to the presence of
recommendations about the product’s use and
maintenance.
an equilateral triangle is intended to alert the
user to the presence of not isolated, dangerous
voltage within the product enclosure that may
be of magnitude to constitute a risk of electrical
shock.
IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep this instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• 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 polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with
the apparatus.
• When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• 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.
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KRX PORTABLE SYSTEMS Ver. 1.3
WARNING
• Since the device is a CLASS I apparatus, it must be only connected to an AC three-wire grounding outlet.
If your outlet isn’t grounded, contact a licensed electrician to replace it with a property grounded
outlet.
• To reduce the risk of electric shock, unplug the AC mains connector before installing audio cable.
Reconnect the power cord only after making all signal connections. Do not use the product if the
power cord is broken or frayed. Protect the power cord from being walked upon or pinched.
• To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug
from the AC receptacle.
• Avoiding hearing damage. Professional loudspeakers are capable of producing extremely high sound
levels and should be used carefully. Never stand close to loudspeakers driven at high volume. Set
the volume to a safe level. You can adapt over time to a higher volume of sound that may sound
normal but can be damaging to your hearing. Hearing loss get worse every time you’re exposed to a
sound level of 90 dB or over for an extended period of time. If you experience ringing in your ears
or muffled speech, stop listening and have your hearing checked. The louder the volume, the less
time is required before your hearing could be affected.
• Voltage requirement. Make sure that the supplied voltage stays within the specified range. Verify that
your mains connection satisfies the power ratings of the device.
• Only connect the power supply to an appropriate power outlet
• Do not install the amplifier in wet or humid locations without using weather protection.
• TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, do not expose this apparatus to rain or moisture
and objects filled with liquids, such as vases, should not be placed on this apparatus.
• The main plug of the power supply cord shall remain readily accessible.
CAUTION
• Choking Hazards. This device contains small parts, which may present a choking hazard to small
children. Keep the device and its accessories away from small children.
• It is important that loudspeaker systems are used in a safe manner.
• Do not make repairs yourself. Caution, risk of electric shock. Do not open the device, it contains
potentially hazardous voltage. Never attempt to disassemble, repair or modify the system yourself.
Disassembling the unit may cause damage that is not covered under the warranty. The device
contains no user-serviceable parts. Repairs should only be performed by factory trained service
personnel. Do not plug the power cord in if you suspect that your device needs service or repair.
• Sound distortion. Do not operate speakers for an extended period of time with sound distortion. This
is an indication of malfunction, which in turn can generate heat and result in a fire.
• Cooling. During the use, it is normal for the device to get warm. The exterior of the device functions
as a cooling surface that transfers heat from inside the unit to the cooler air outside. The device
should be placed so that its location does not interfere with its proper cooling. For example, the
device shouldn’t be placed next to surfaces that can interfere with the properly cooling of the rear
panel’s radiators. When operating, the device should not be cover with additional protections.
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KRX PORTABLE SYSTEMS Ver. 1.3
• Temperature. Operate the device in a place where the temperature is between -20°C and 35°C (-4°F
to 95° F). Avoid dramatic changes in temperature or humidity when using it, as condensation may
form on or within the device.
• Take care not to spill any food or liquid through the device’s grill. Do not attempt to dry the device
with an external heat source, such as a hair dryer.
• Carrying, handling and installing the device. The device contains sensitive components. Do not drop,
disassemble, open, crush, bend, deform, puncture, shred, incinerate, paint, or insert foreign objects
into it. If your device has been dropped or damaged unplug the power cable immediately.
• Set up. Set up your device on a stable retaining horizontal surface. If combined or mechanically
connected with other products, always verify the stability of the resulted system. Install the unit
only in a location that can structurally support the weight of the unit, far away from people who
can interfere with the stability of the system. In case of outdoor installation, protect the device from
rain and moisture. Assure that the wind does not interfere with the system’s stability, taking extra
securities like chains, weights, ropes or any other certified anchoring systems. Doing otherwise may
result in the unit falling down, causing personal injury or property damage or even death. The system
should only be suspended by qualified personnel following safe rigging practices. Secure fixings
to the building structure are vital. To clarify any doubt you may have, seek help from architects,
structural engineers or other specialists.
• This audio system is not intended for use in the operation of nuclear facilities, aircraft navigation
or communication systems, air traffic control systems,or for any other uses where the failure of the
audio system could lead to death, personal injury, or sever environmental damage.
5. UNPACKING
Each K-array speaker is built to the highest standard and thoroughly inspected before leaving the
factory. Upon arrival, carefully inspect the shipping carton, then examine and test your new amplifier.
If you find any damage, immediately notify the shipping company. Only the consignee may institute a
claim procedure regarding the system’s electronic equipment.
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