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KRX PORTABLE SYSTEMS

Ver. 1.1

4

1. INTRoDUCTIoN

2. KEY fEATURES

3. APPLICATIoNS

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.

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Unique performance-to-size ratio

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  Variable angle array design 

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Stainless steel chassis

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 Customized colors (only under specific request)

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Clubs, DJ set 

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Portable and installed AV systems

Summary of Contents for KMT218

Page 1: ...KRX PORTABLE SYSTEMS Ver 1 1 KRX202 KRX402 KRX802 USER GUIDE English KRX202 KRX402 KRX802 ...

Page 2: ...ation 5 5 UNPACKING 7 6 Product PHysical Overview 8 6 1 KRX202 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 ...

Page 3: ...ion 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 device complies with the Restriction of Hazardous Substances Directive Warning DANGEROUS VOLTAGE Terminals marked with this symbol...

Page 4: ...e 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 ...

Page 5: ...t 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...

Page 6: ... 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 p...

Page 7: ...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 ...

Page 8: ...KRX PORTABLE SYSTEMS Ver 1 1 8 6 Product PHysical Overview 13 4in 340mm 51 8 1315 64 4 1635 18 3in 465mm 12 6in 320mm 7 9in 200 5mm 23 5in 596 5mm 6 1 KRX202 ...

Page 9: ...KRX PORTABLE SYSTEMS Ver 1 1 9 13 4in 340mm 68 4in 1737mm 81 0 2057 12 6in 320mm 7 9in 200 5mm 21 9in 555mm 30 0in 763mm 6 2 KRX402 ...

Page 10: ...KRX PORTABLE SYSTEMS Ver 1 1 10 18 9in 480mm 12 6in 320mm 7 9in 200 5mm 13 4in 340mm 78 4in 1991mm 91 0 2311 mm 36 7in 932 5mm 23 6in 600mm 6 3 KRX802 ...

Page 11: ...tly wired from one socket to the other so that the two sockets are equivalent and can connect the speaker to the amplifier or to another KX12 driven in parallel by the same amplifier channel Connect the Subwoofer s Speaker Output to the first unit of the cluster with the provided long two poles Speakon cable and connect the other units together with the provided short two poles Speakon cables ...

Page 12: ...2 The next step by step instructions demonstrate how to mount a KRX802 The mounting procedure for the other systems is not dissimilar 1 Screw the pole into the subwoofer 8 system setup 2 Insert the K FLY22 adapter and screw the knob ...

Page 13: ...8x40 piston pins provided with the system 5 Insert two joint blocks and secure each of them with the two 5x30 piston pins provided with the system The orientation of the joint blocks and the holes used will affect the angle between the K FLY22 and the KX12 as shown in the next page ...

Page 14: ...e second piston pin in the hole corresponding to the desired angle If you want the to angle the speaker by 5 2 5 2 5 or 7 5 position the joint block so that the letter B is at the bottom Plug a piston pin in the hole labeled B adjust the angle of the speaker and plug the second piston pin in the hole corresponding to the desired angle The pictures below show how to regulate the angles 5 Repeat Ste...

Page 15: ...ng the power rating for the device CAUTION Do not connect the system to AC power mains exceeding 265 V Doing so will cause significant damage to the device and create serious risk for users 9 3 CURRENT REQUIREMENT The amplifier presents a dynamic load to the AC mains drawing additional current as operating levels increase Different cables and circuit breakers heat up at varying rates so it is esse...

Page 16: ...otections are triggered by audio signal current and voltage by comparing input and output and NTC Negative Temperature Coefficient thermistors A Peak Current Shut Down and a Temperature Protection Limiter protect the output stage High frequency stationary signals like steady sinusoidal signals improperly referred as continuous or permanent signals with high amplitude tend to stress the amplifier s...

Page 17: ...KRX PORTABLE SYSTEMS Ver 1 1 17 5 5 A 2 9 A 14 A 16 A 1 6 3 5 230 1 2 4 6 3 5 9 10 7 8 11 12 13 14 15 16 17 18 19 20 9 5 subwoofer rear panel ...

Page 18: ...Input This output cannot be processed or controlled via the K Framework software 11 REMOTE RS485 Link Input XLR input for connecting the KMT from another RS485 device in a K Framework network RS485 Link Input can also be used to connect a computer running the K Framework software requires K USB USB to RS485 adapter 12 REMOTE RS485 Link Output XLR output for connecting additional RS485 devices in a...

Page 19: ...y 9 6 RS485 network The RS485 Link Input and The RS485 Link Output on the rear panel allow to create a network of K array devices that users can manage with a PC running the K Framework software All devices can be linked with standard XLR cable The PC can be connected to the network either with USB cable or XLR cable requires K USB USB to RS485 adapter accessory as shown in the diagrams below Atte...

Page 20: ...right corner to switch between the Input levels page and the Output levels page MATRIX The Matrix page allows users to manage the routing of the four input channels to the subwoofer to the speaker connected to the Speaker Out and to the XLR DSP Out In the example shown here the analog signal on the input channel 1 and the digital signal on the input channel 3 are sent to the subwoofer while the an...

Page 21: ... to return to the Delay page CONFIGURATION When you buy a KRX system the correct preset is already loaded and the system is ready to use But it can happen that you want to connect another model of K array speaker to the subwoofer In this case go to the Configuration page and press the SETUP button Insert the model and the number of speakers connected to the Speaker Out Press the NEXT button on the...

Page 22: ...Info page contains information about the current software and firmware the current preset loaded and the Board ID of the device The Board ID is a number which identify the device when it is connected in a K framework network see Paragraph 7 6 Make sure that each device in the network has a different ID number ...

Page 23: ...uired to send the unit in for service In this instance you will be provided with an RA Return Authorization number which should be included on all shipping documents and correspondence regarding the repair Shipping charges are the responsibility of the purchaser Any attempt to modify or replace components of the device will invalidate your warranty Service must be performed by an authorized K arra...

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