KA24 - KA84 - National Audio Systems
Contents
1. KA24 KA84 Ver 1 2 DECLARATION OF CONFORMITY Manufacturer Importer K array s u r l Brand K ARRAY Address via Paolina Romagnoli 17 50037 S Piero a Sieve Firenze ITALY Date of Issue 03 06 14 Model Code KA24 Declaration Complies with safety essential requirements of Council Directive 2004 108 EC on the approximation of the Laws of the Member States relating to electromagnetic compatibility 2006 95 EC on the harmonisation of the laws of member state relating equipment designed for the use within certain voltage limits This declaration applies to all specimens manufactured in accordance with the attached manufacturing drawings which form part of this declaration Assessment of compliance of the product with the requirements relating to electromagnetic compatibility and low voltage directive was based on the following standards EMC EN 55103 1 2009 EN 55103 2 2009 EN 61000 3 2 2006 A1 A2 EN 61000 3 3 2008 Safety EN 60065 2002 A1 A11 A2 A12 Marking C Applying Year 2014 Applied by K array s u r l Via Paolina Romagnoli 17 50037 S Piero a Sieve Firenze Italy Tel 39 055 8487222 Fax 39 055 8487238 Signed by Franco Spataro Technical Manager Wher K array 5 1 a socio unico societ soggetta alla attivit di direzione e coordinamento di HP Sound Equipment srl P IVA VAT CF 06206990480 R E A 609589 Cap soc i v 100 000 00 Sede legale via Paolina Romagnoli 5002. POT1_B AMPLIFIER KA POT1 WIRING KA24 KA84 Ver 1 2 15 SERVICE To obtain service 1 Contact the official K array distributor in your country Your local distributor will direct you to the appropriate service center 2 If you are calling for service please have the serial number s of the unit s available for reference Ask for Customer Service and be prepared to describe the problem clearly and completely 3 If the problem cannot be resolved over the phone you may be required 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 array service center Cleaning Use only a soft dry cloth to clean the housing Do not use any solvents chemicals or cleaning solutions containing alcohol ammonia or abrasives Do not use any sprays near the product or allow liquids to spill into any openings 20 KA24 KA84 16 SPECIFICATIONS Max Power 40 Max Power 80 Max Power bridged 80 Minimum impedance Slew rate 8 Q Distortion THD N Input impedance Gain Output Bandwidth Damping factor Thermal Short circuit over load Clip limit Analog signal limit Analog Connect
3. designed to use the bridge configuration if not specified on the official user s manual The extra power that the bridge configuration can deliver can damage K array speakers if not used under K array specifications To use the bridge configuration follow the instruction below 1 In the Output Configuration Page on the touch screen or via the K framework software select the same preset on both channels A1 and A2 or B1 and B2 Speaker Model Speaker Impedance Quantity Pair with Speaker Qt Level Balancing Ad E FLAT bi 1 NONE 0 Speaker Model Speaker Impedance Quantity Pair with Speaker Ot Level Balancing FLAT 1 z NONE 0 x 2 In the Matrix Page send the same signal to both outputs CHANNEL 1 3 On the KA24 take the signal from 2 positive 1 negative On the KA84 take the signal from 1 positive 2 negative Bridge mode will provide KA84 24 2 x 1000W 8Q KA24 KA84 2x 4000W 80 KA24 KA84 12 TOUCH SCREEN FUNCTIONS Ver 1 2 The main functions of the onboard DSP can be managed with the integrated touch screen Functions are grouped into six pages shown as icons on the Home page HOME PAGE dl T ji lo LEVELS MATRIX D 3 OUT CONF PRESETS LEVELS A INPUT LEVELS CH1 CH2 CH3 CH4 OUTPUT LEVELS Al A2 B1 MATRIX MATRIX B2 To reach the Home page from any other page m touch the Home button The Levels page allows users to indepe
4. of RS485 devices with one PC connected via USB 27 EXTENSION CONNECTOR Multi pin connector for various K array extension modules for wireless control and audio transmission memory extension digital signal encoding and audio reproduction 28 KA POT1 CONNECTOR These two analog GPIO ports allow the user to control same amoplifier s parameters using the K POT1 accessory See Section 14 for further information about these feature KA24 KA84 Ver 1 2 USB connection from a PC a INPUT mis Ci v ssa tisv 2 9A 230V AC LINK MAX OUT 115V 1 6KW 14A 230 V 3 5KW 16A CLASS 2 WIRING nie to 55 7 2 9A 230V AC LINK 15 V 1 6KW 14A 220 KWI 16A ae AC IN asarnisy 29 230 V AC ur 230 V SSRW 16A AN o Next device in the K framework network RS485 network 12 KA24 KA84 Ver 1 2 11 4 BRIDGE MODE The bridge configuration is optional for end users who want to drive third party loudspeakers using K array amplifiers K array speakers ARE NOT
5. 37 San Piero a Sieve Firenze ITALY tel 39 055 8487222 fax 29 055 8487238 info k arraycom www k array com DECLARATION OF CONFORMITY Manufacturer Importer K array s u r l Brand K ARRAY Address via Paolina Romagnoli 17 50037 S Piero a Sieve Firenze ITALY Date of Issue 03 06 14 Model Code KA84 Declaration Complies with safety essential requirements of Council Directive 2004 108 EC on the approximation of the Laws of the Member States relating to electromagnetic compatibility 2006 95 EC on the harmonisation of the laws of member state relating equipment designed for the use within certain voltage limits This declaration applies to all specimens manufactured in accordance with the attached manufacturing drawings which form part of this declaration Assessment of compliance of the product with the requirements relating to electromagnetic compatibility and low voltage directive was based on the following standards EMC EN 55103 1 2009 EN 55103 2 2009 EN 61000 3 2 2006 A1 A2 EN 61000 3 3 2008 Safety EN 60065 2002 A1 A11 A2 A12 Marking Applying Year 2014 Applied by K array s u r l Via Paolina Romagnoli 17 50037 S Piero a Sieve Firenze Italy Tel 39 055 8487222 Fax 39 055 8487238 Signed by Franco Spataro Technical Manager K ar ray s r l a socio unico societ soggetta alla attivit di direzione e coordinamento di HP Sound Equipment srl P IVA VAT CF 06206990480 R E A 609589 Cap so
6. 7 16 15 22 11 12 13 14 15 16 17 18 sensitivity for Mic pressed or Line depressed level CH 2 MIC LINE SWITCH Selects CH 2 input sensitivity for Mic pressed or Line depressed level CH 3 MIC LINE SWITCH Selects CH 3 input sensitivity for Mic pressed CH 4 MIC LINE SWITCH Selects CH 4 input sensitivity for Mic pressed or Line depressed level or Line depressed level PHANTOM POWER SWITCH Turns phantom power 48 V on pressed off depressed on CH 1 CH 2 CH 3 CH 4 inputs only for channels with MIC LINE SWITCH pressed CH 1 PARALLEL OUT XLR parallel output providing a direct signal from the CH 1 Input This output cannot be processed or controlled via the K Framework softwere CH 2 PARALLEL OUT XLR parallel output providing a direct signal from the CH 2 Input This output cannot be processed or controlled via the K Framework softwere CH 3 PARALLEL OUT XLR parallel output providing a direct signal from the CH 3 Input This output cannot be processed or controlled via the K Framework softwere CH 4 PARALLEL OUT OR DSP OUT This XLR connector provides a direct signal from the CH 4 Input when the switch 19 is depressed In that case this output cannot be processed or controlled via the K Framework softwere Otherwise when the switch 19 is pressed this XLR acts as an auxiliary XLR balanced output controlled via the K Framework software Users can select the signal routed to t
7. Ver 1 2 KA24 KAS4 USER GUIDE English KA24 KA84 Ver 1 2 TABLE OF CONTENTS SIMBOLS siriani dr 3 te ROSA 4 REY PEAR O AI 4 5 ee de di 4 4 SAFETY INFORMATION teased 5 Oe UNPACKING e aa E 6 bi HINGLUIDED ACCESSORIE oa deo 6 7 O IN TALCA TON ee ee ee er 8 2 AC ROWER ae 9 10 9 lil BACK PANEG ir 9 ld POWER SUPREY ERE ELI 10 12 AUDIO CONNECTIONS opariren 10 Veo REMOTE CON TROD area 11 114 BRIDGEMODE sisi ee 13 12 TOUCH 14 13 REMOTE CONTROL cece eee eee ee eee eee 16 ite RAFPOTE ACCESSORI perirono alari 17 17 14 2 ASSEMBLING AND WIRING cori ni 18 Woe SERVICE casoria 20 IO SPECIFICATION rreran nce inizia aloe decor 21 KA24 KA84 q s A A L 2002 95 EC Ver 1 2 SYMBOLS K array declares that this device is in compliance with applicable CE Standards and regulations Before putting the device into operation please
8. c i v 100 000 00 Sede legale via Paolina Romagnoli 50037 San Piero a Sieve Firenze ITALY tel 39 055 8487222 fax 39 055 8487238 info array com www k array com The contents of this manual are furnished for informational purposes only K array s u r l assumes no responsibility for any errors or inaccuracies that may appear in this manual K array 5 reserves the right to make modifications without prior notice 22
9. e Verify that your mains connection satisfies the power ratings of the device e Only connect the power supply to an appropriate power outlet e Do not install the amplifier in wet or humid locations without using weather protection e 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 e The main plug of the power supply cord shall remain readily accessible A A e 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 e 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 e 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 5 UNPACKING 6 INCLUDED ACCESSORIES Each K array amplifier is built to the highest e P
10. em to AC power mains exceeding 265 V Doing so will cause significant damage to the device and create serious risk for users 10 FRONT PANEL 1 TOUCH SCREEN Control panel Provides access to the main functions of the DSP on board see Section 12 2 POWER SWITCH Turns the amplifier on and off 11 BACK PANEL DI KA24 KA84 11 1 POWER SUPPLY 3 4 5 Power SUPPLY 4 n 11 2 AUDIO CONNECTIONS 20 13 914 8 12 7 11 6 10 23 6 AUDIO AES EB uno UF z m ties 5 s O i 8 selectable sensitivity for Mic 30 dBu or Line 4 dBu OUT B1 1 1 OUT B2 2 2 9 2 CLASS 2 WIRING selectable sensitivity for Mic 30 dBu or Line 4 dBu EA Power OUT 20 me Fi selectable sensitivity for Mic 30 dBu or Line 4 dBu Ver 1 2 AC INPUT PowerCon for AC power AC LINK PowerCon ouput for feeding AC mains power to additional K array components with a powercon AC input socket POWER ON LED Indicates the amplifier is ON CH 1 MIC LINE INPUT XLR analog input with selectable sensitivity for Mic 30 dBu or Line 4 dBu CH 2 MIC LINE INPUT XLR analog input with CH 3 MIC LINE INPUT XLR analog input with CH 4 MIC LINE INPUT XLR analog input with 10 CH 1 MIC LINE SWITCH Selects CH 1 input 21 19 18 1
11. his output KA24 KA84 Ver 1 2 19 CH 4 LINK OUT DSP OUT SWITCH Press the switch to use output 18 as an auxiliary XLR balanced output controlled via the K Framework software 20 CH 5 6 AES EBU INPUT XLR input connector for two channel AES EBU digital audio accepting sample rates from 32 kHz 96 kHz 21 CH 5 6 AES EBU OUTPUT XLR output providing two channel digital audio from ch 5 6 AES EBU input at a sample rate of 48 kHz 22 POWER OUT A Speakon output to drive passive speakers 1 1 provides OUT 2 2 provides OUT A2 23 POWER OUT B Speakon output to power passive speakers 1 1 provides OUT B1 2 2 provides OUT B2 SPEAKON OUT A SPEAKON OUT B OUT A2 OUT Al OUT B2 OUT BI OUT A2 OUT A1 OUT B2 OUT B1 Speakon wiring diagram 11 3 REMOTE CONTROL 24 24 REMOTE RS485 LINK INPUT XLR input for connecting the amplifier from another RS485 ar UE CIPE ae Ds 7 A device in a K Framework network RS485 Link Input can also be used to connect a computer S 48 ET pere running the K Framework software requires K USB USB to RS485 adapter 25 REMOTE RS485 LINK OUTPUT output for connecting additional RS485 devices in a 28 K Framework network 26 REMOTE USB Input Connects a computer running the K Framework software for remote control of the amplifier Users can manage an entire network
12. ls using K array accessories An on board K array speaker preset library gives an optimal and easy configuration for endless combinations All DSP functions are remote controlled via the K framework software over RS485 3 pin XLR or integrated USB connector Both amplifiers are built into a 2U light weight aluminium chassis and come with a kit of removable rack adapters and four rubber pads for flat surfaces KA amplifiers feature optical limiters and protection against over heating over current and short circuits All KA components are designed by the K array R amp D department and custom made under the K array quality control system 2 KEY FEATURES 3 APPLICATIONS e 2000 W or 8000 W in just 2 rack units e Theatrical sound reinforcement 5 4 analog IN and 2 AES EBU IN to 4 fully e Concert halls clubs house of worship e Exhibit audio for museum displays e Cinema and installed AV systems e Touring PA and Monitoring configurable OUT e 2 GPIO for external analog controls e Mix sensitivity and phantom power is available in all 4 analogue inputs e Integrated DSP with processing matrix and delays e On board touch screen for easy access functions e K array loudspeakers presets already on board e RS485 and USB connectivity for remote control KA24 KA84 Ver 1 2 4 SAFETY INFORMATION Read these instructions Keep these instructions Heed all warnings Warning Failure to follow these safety instructions could result i
13. n fire shock or other injury or damage to the device or other property The lighting flash with arrowhead symbol within an equilateral triangle is intended to alert the This symbol alerts the user to the presence of user to the presence of uninsulated dangerous recommendations about the product s use and voltage within the product enclosure that may maintenance l l l l be of magnitude to constitute risk of electrical shock IMPORTANT SAFETY INSTRUCTIONS e Read these instructions e Keep this instructions e Heed all warnings e Follow all instructions e Do not use this apparatus near water e Clean only with dry cloth e Do not block any ventilation openings Install in accordance with the manufacturer s instructions e Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat e 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 e Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus e Only use attachmen
14. ndently manage the amplitude of all the four input channels and all the four output channels Click the arrow button on the top right corner to switch between Input levels page and Output levels page The Matrix page allow users to manage the routing of the four input channels to the four output channels KA24 KA84 DELAY DELAY IN3 4 CONFIGURATION i OUTPUT CONFIGURATION SPEAKER KMT12P QUANTITY QUANTITY Ver 1 2 DELAY OUT The Delay page allows users to independently set the delays for the four output channels up to 3 5 mt and for Channel 3 and Channel 4 input channels up to 114 mt Pressing on a delay value users can set the delay in ms or in mt Press the OK button to return to the Delay page Before connecting the speakers to the amplifier follow the instructions below Warning Failure to follow these instructions could result in serious damage to the speakers connected to the amplifier Go to the Configuration page and press the SETUP button Insert the model and the number of speakers connected to Output A1 Press the arrow button on the top right corner Insert the model and the number of speakers you want to match to the previous ones For example if you have two KP102 mid high arrays connected to the A1 output and a KMT21P sub connected to another output or to another amplifier select KMT21P to the A1 Out Match page and the DSP will compute automatically the crossove
15. observe the respective country specific regulations 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 voltages RISK of electric shock Terminals marked with this symbol are HAZARDOUS LIVE and the 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 Restriction of Hazardous Substances Directive KA24 KA84 Ver 1 2 1 INTRODUCTION The K array KA line of power amplifiers are comprised of KA24 and KA84 The KA24 has 4 channels per 500W on 46 and the KA84 has 4 channels per 2000W on 40 Each model has 4 fully independent and configurable channels The integrated DSP offers EQ Matrix Levels Delays and Limiter functions on every channel to avoid the need of external additional processors The front panel has an easy to use touchscreen that gives access to all the basic functions for quick setup and corrections The KA24 and KA84 can be used as a mixer for fixed installations thanks to the microphone and Phantom power options available on every analog IN 2 GPIO ports give easy external analog contro
16. ors Digital Connectors Connectors Connectors 4 1 wiring 4 2 wiring Connector Nominal voltage Operating Range Efficiency 1 8 rated power pink noise 80 Thermal dissipation Dimensions Weight 21 KA24 KA84 Power Output 4 x 600 W 4 x 2000 W2 4 x 300 W 4 x 1000 W 2 x 1200 2 x 4000 W 4 single channel mode 80 bridge mode Audio specs 50V uS input filter bypassed lt 0 09 1W to full power 40 typically lt 0 05 10 kQ balanced 26 dB 32 dB Unbalanced to ground 20Hz 20KHz 1dB gt 10000 100Hz Protection Yes Yes Yes Audio Input 4 male 4 female 3 pin balanced XLR 1 male 1 female 3 pin XLR Remote control Input 1 male 1 female XLR parallel 1 USB B Jack serial converter Audio powered Output 2 x 4 pin Speakon NL4 1 1 A1 2 2 A2 1 1 B1 2 2 B2 AC power 2 x PowerCon IN OUT 100 240 V 50 GOHz with PFC AC 90V 264V gt 79 typical 220 W 600 W 1 8 of max output power 40 180 BTU h 621 BTU h 1 4 of max output power 40 396 BTU h 1154 BTU h Certification 20 Physical 426 mm x 304 mm x 88 2 mm 19 1 x 12 x 3 5 5 5 Kg 12 12 Ib 6 1 Kg 13 45 Ib Notes for data 1 EIAJ Test Standard 1KHz 1 THD New materials and design are introduced into existing products without previous notice Present systems may differ in some respects from those presented in this catalogue
17. ower cable 3 m Standard and thoroughly inspected before leaving e USB cable 1 8 m the factory Upon arrival carefully inspect the e Rubber pads for flat surfaces installation shipping carton then examine and test your new e Rack brackets 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 KA24 KA84 Ver 1 2 7 PHYSICAL 480 mm 18 9 430 mm 16 9 8 lt 5 g ul z 00 5 o nm N Weight KA24 5 5 Kg 12 12 Ib 304 8 mm 12 0 KA84 6 1 Kg 13 45 Ib KA24 KA84 Ver 1 2 8 INSTALLATION KA24 and KA84 are two rack units high 2U and can be mounted in an ElA standard 19 rack using two rack adapters included In case of istallation on a flat surface Use the four rubber pads included To maintain a low and even operating temperature the amplifier contains two fans on the right side The figure below shows the air flow WARNING For effective cooling do not obstruct the ventilation openings KA24 KA84 Ver 1 2 9 AC POWER KA24 and KA84 operate safely and without audio discontinuity if the AC voltage stays within an operating range of 90 V to 264 V nominal range 100 240 V at 50 60 Hz Please verify that your AC main connections are capable of satisfying the power rating for the device CAUTION Do not connect the syst
18. r installed in a standard box for switches It is possible to connect up to two independent KA POT1 to each amplifier in order to control two independent levels 14 1 CHANNEL LEVELS ASSIGNMENT To assign each KA POT1 an amplifier parameter connect a computer running the K framemork softwere and follow the instruction you find in the K framework manual As shown in the window below users can assign each KA POT1 one or more channel levels In the example below the first KA POT1 controls all input channel volumes and the second controls all output channel volumes E E E q KA24 KA84 Ver 1 2 14 2 ASSEMBLING AND WIRING The KA POT1 pack is composed of PCB with potentiometer 2 x screws M3X6 2 X 4 pin connector plugs Drilling jig DRILLING JIG KA POT1 UNPACKING Position the drilling jig on an appropriate box and make the three holes Install your cap in a box for switches and insert the PCB with the potentiometer coming out from the center hole Secure with the two included screws Cover the potentiometer with the gray knob KA24 KA84 Ver 1 2 Follow the wiring scheme below to connect the 4 pin connector plugs Follow the scheme on the top if you own only one KA POT1 and the one on the bottom if you own two KA POT1 Then insert one plug in the PCB and the other into the GPIO port on the amplifier AMPLIFIER AMPLIFIER KA POT1_A KA POT1_B AMPLIFIER KA POT1_A KA
19. r setting to obtain a perfect match between the speakers Press the arrow button on the top right corner Repeat step 2 and 3 for all other outputs At the and you will return to the main Configuration page Press APPLY to load all settings The DSP will automatically adjust the parameters on each output channel to match the requirement for the speakers connected Warning If you are using speakers with selectable impedance pay attention to set the value indicated in the Configuration page KA24 KA84 Ver 1 2 PRESET DEVICE PRESETS The Preset page allows users to load presets stored on board INFO The Info page contains information about the current software and firmware and the Board ID a of the amplifier When connecting the amplifier in a K framework network please make sure that all devices in the network have different ID numbers BOARD ID Serial 1234567891 FH Version 1 72966 HH Version 89 D Preset Preset Empty 81 13 REMOTE CONTROL SOFTWARE All amplifier functions including signal routing output configuration channel equalization and delay can be controlled via K Framework softwere To download your free K Framework software and K Framework User Guide please navigate to the K array website http www k array com software_download 16 KA24 KA84 Ver 1 2 14 KA POT1 ACCESSORY KA POT1 allows users to control input channels and output channels levels with a potentiomete
20. ts accessories specified by the manufacturer e Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus e When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over e Unplug this apparatus during lightning storms or when unused for long periods of time e 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 9 KA24 KA84 Ver 1 2 A A e Since the device is a CLASS 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 e To reduce the risk of electric shock disconnect the amplifier from the AC mains 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 e To completely disconnect this apparatus from the ac mains disconnect the power supply cord plug from the ac mains connector e Voltage requirement Make sure that the supplied voltage stays within the specified rang
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