EPAK2500R User Guide
Contents
1. FEATURES 3 2 REAR PANEL 1 Main Input Through Signal Out This is the main system input connector with associated Through Signal Output connector for sending unprocessed signal to other devices such as more EPAK 2500R s to power more ES 1 0 s in a system 2 Input Z This switch selects one of two input impedance settings for the EPAK 2500R The switch should be set to the 50 2 setting when the EPAK 2500R is driven from a VHD LD4 line driver Where an LD4 is not being used and the EPAK 2500R is being driven from a standard mixing console output then the 10k Q setting should be used 3 Mid High In Pre Control Out This is an insert point for the Mid High section of the EPAK 2500R the signal sent to the ES 1 0 cabinet It enables you to insert an external device a delay line for example into the signal that is being sent to the ES 1 0 With the associated switch in the Engage setting the Pre Control Out connector would send the signal to the external device and its output would be returned into the Mid High In connector 4 Internal Sub In This insert point allows you to drive the internal subwoofer amplifier from an external source The signal for the internal subwoofer amplifier is usually derived from the Main Input on the EPAK 2500R but with this Sub In and associated switch the option is available to derive the signal input for the internal subwoofer section from a different so2. E gt E E Ss a D vD gt sup SETUP os ETE 3 4 Lo ESIBSIS ES18 E515 E a 2 RESIS RESIS ZAR a 2 ese REST A aia ies A 25 ss 5 5 e525 aeS IA nn 6 6 m25 aviz KA E5105 se yax 2 r Sranie a 7 vor voy vor 3 SAMA SARNA A a E E USE be y 5 if 5 NW NWA IAS sa E E E E E E 177 mm DO000000000000000000000000000000000000000000000 REAR PANEL SIDE PANEL ooN 415 4 mm SEPAK GETTING STARTED 2 3 COOLING The EPAK 2500R has a comprehensive cooling system featuring chassis sealed PCB board mounting and shock mounted speed controlled fans This means that the cooling system never drives air across PCB boards connectors or components ensuring prolonged electronic component lifespan and minimizing maintenance cycles Air is drawn into the front of the amplifier by the two fans on the rear panel this passes over the cooling fins of the heat sinks and exhausts through the rear If the heat sink gets too hot its sensing circuit will open the output relay disconnecting the load It is important to have an adequate air supply at the front of the amplifier and enough space around the rear of the amplifier to allow the cooling air to escape If the unit is rack mounted do not use doors or covers on the rear of the rack the exhaust air m
3. 0 Width 483mm 19 0 Depth 495mm 19 5 Weight 30kg 66lbs NOIL31104d O Ino ans 1YVNY31X3 JDVINA LAdNI TWNYSLXS gp 9 F Ino ans 13431 NS FJOVONSSIO TVWNYSLNI 40 Las ans O JOVONSA NI GAS TVWNYSLNI gp F 13437 J Y NJSIA OJY4IH WILSAS 0 1S3 Mco o o gt p JOVON3 oo p DA wv LNdLNO 1NdNI 4 m En JOYLNOD Jud IH GIW No Ma y POF 0 1S3 om A ELEGE LNdLNO dais WIN O i UOS LINN TOYLNOD EIN SS ea J NVOJANI INdNI A INO IWNOIS INdNI HONOYHL NIVW 2 Pe a E NI DY NOILDILOYd AlddNS YIMOd NIVW A A NL 7 NL 7 ZN ZN ZN NON ZN ZN IWWYSHL LIWN JSN 1N3SJ3Yd AJDIAYAS YAMOd dddOddNN TWNDIS WARRANTY SERVICE amp CONTACT INFORMATION WARRANTY Your EPAK 2500R is covered against defects in material and workmanship Refer to your supplier for more details SERVICE In the unlikely event that your EPAK 2500R develops a problem it must be returned to an authorized distributor service centre or shipped directly to our factory Because of the complexity of the design and the risk of electrical shock all repairs must be attempted only by qualified technical personnel If the unit needs to be shipped back to the factory it must be sent in its original carton If improperly packed the unit may be damaged To obtain service contact your nearest KV2 Audio Service Centre Distributor or Dealer The future of sound Made perfectly clear At KV2 Audio our vision is to constantly dev
4. A i mi 113 4 DELAY LINE E AAA DBA E Mg BS E 1 D EFLA E A ou Wh Main ee Co ho MG of Sub Set Up switch on front eee e o A a E panel at position 3 no 7 E Y Ll ee y th A E Mid Hi Insert switch in Engage position USAS i CRE All Sub Insert switches in Disengage Ml eae position USING THE SYSTEM 4 3 FEEDING SUBWOOFERS FROM ANOTHER SOURCE Taking the following diagram as an example if the ES 1 0 was flying you might want to fly one ES 2 5 above it with the other two ES 1 8 s ground stacked beneath In this instance it would be preferable to have both sets of subwoofers fed by separate feeds from the mixing console to give you independent level control to each of the subwoofer types and to have the ES 1 0 fed by the main output from the mixing console Both Sub Insert switches in Engage position Main signal input m ul L ol a EE O r atts 4 gt lt Sub Set Up switch on front panel at position 5 Flown Subwoofer feed from Mixing ie i Ground stacked TES a i E j T ll p A ME ESA i Subwoofer feed from har _ S53 Mixing console Ji Z S a as Fi 2d ifr 2 f i The table below shows the various combinations of the Sub Insert switches and their effect on the signal routing in the EPAK 2500R Internal Sub External Sub Internal Sub Insert Switch Insert Switch Position Position External Sub Sign
5. Main Signal Input oa LS KW 9 O A Y rn ado ni Sub Set Up switch on front Si n gt hm ee a m 1 3 a la e panel at position 3 All Insert switches e in Disengage E position USING THE SYSTEM Notes on Subwoofer Combinations 1 Setting 1 is set up for driving 1 x ES1 8 2 x ES1 5 It can also drive 1 x ES1 8 1 x ES1 5 in this mode the relevant Sub level control either Internal or External should be increased by up to 6dB 2 Setting 2 is set up for driving 2 x ES1 5 It can also drive 3 x ES1 5 in this mode the relevant Sub level control either Internal or External should be decreased by 3dB This setting can also drive just 1 x ES1 5 with the relevant Sub level control adjusted accordingly dependant on the application 3 Setting 6 is a true 5 way setting The ES2 5 s are actively crossed over with the VHD1 21 s 4 2 USING THE MID HI INSERT The Mid Hi Insert point gives you the ability to insert a signal processing device into the ES 1 0 signal chain For instance in some instances it may be necessary to delay the signal going to the ES 1 0 using a delay line The Main Input is used as the system input as per Normal Mode but the Mid Hi insert switch is switched to Engage A feed is taken to the delay line from the Pre Control Out connector and the return from the delay line is connected to the Mid Hi In connector as per the diagram i mil E Feith
6. able for connecting up to various ES series subwoofers We recommend using 2 5mm core cables USING THE SYSTEM 4 1 NORMAL SET UP The EPAK 2500R is designed to actively power one ES 1 0 cabinet and associated subwoofer systems For Normal Mode operation signal is applied to the Main Input connector and all the Insert switches would be in the Disengage position The Input Z switch should be set to match the output impedance of the device feeding the EPAK 2500R If you are using a VHD LD4 Line Driver then the Input Z switch on the EPAK 2500R should be set to 5092 If when using the LD4 you are feeding more than one EPAK 2500R then they should all be set to 10kQ with the last one in the signal chain set to 50 Q Six different combinations of sub woofers are accommodated for when using the EPAK 2500R The combinations are as follows EPAK 2500R Setting Internal External Setting 1 1 x ES1 8 2 x ES1 5 1 x ES1 8 2 x ES1 5 Setting 2 2 x ES1 5 2 x ES1 5 Setting 3 2 x ES1 8 2 x ES1 8 Setting 4 1 x ES2 5 1 x ES2 5 Setting 5 1 x ES2 5 2 x ES1 8 Setting 6 5 way system 1 x ES2 5 2 x VHD1 21 Internal denotes subwoofers powered by the internal subwoofer amplifier External denotes subwoofers powered by an external VHD 3200 subwoofer amplifier fed from the EPAK 2500R s External Sub Out connector PO NRHA ITM ENL 1 F i Lee AA E Mts wys h L BES LA a y e i Wi nay i Bii ah ET
7. al derived Signal derived from from Disengage Out Disengage Main Input Main Input Engage In Disengage Internal Sub In Internal Sub In Engage Engage Internal Sub In External Sub In Disengage Engage Main Input External Sub In EPAK 2500R AMPLIFIER CONTROLLER SPECIFICATIONS High Frequency Amplifier Specification Type Class AB Push Pull low inter modulation Mosfet design with transformer balanced output Rated Continuous Power 100W Distortion lt 0 05 Operating Bandwidth 2 5kHz 28kHz Mid Frequency Amplifier Specification Type Class AB Push Pull low inter modulation Mosfet design with transformer balanced output Rated Continuous Power 200W Distortion lt 0 05 Operating Bandwidth 500Hz 2 5kHz Mid Bass Frequency Amplifier Specification Type High efficiency Low frequency Current enhancing switch mode Rated Continuous Power 600W Distortion lt 0 05 Operating Bandwidth 130Hz 500Hz Low Frequency Amplifier Specification Type High efficiency Low frequency Current enhancing switch mode Rated Continuous Power 1600W Distortion lt 0 05 Operating Bandwidth 20Hz 130Hz Speaker Input EP6 Mid Hi EP4 Sub Signal Input ee Input Sensitivity 1 0V RMS Input Impedance 20k0 or 500 Line Driver ready Power Connector Neutrik PowerCon Operating Voltage 100 120V060Hz 205 240V 50Hz 225 260V 50Hz Recommended Amperage 20A 115V 10A 230V 10A 250V Height 177 8mm 7
8. dangerous This is a very high powered device that can put out high voltages and sizeable currents Always use safe operating techniques with the EPAK 2500R FOR YOUR SAFETY READ THE IMPORTANT PRECAUTIONS SECTION AS WELL AS THE INPUT OUTPUT AND POWER CONNECTION SECTIONS OF THIS MANUAL GETTING STARTED 2 1 UNPACKING Unpack the EPAK 2500R and check to see if there is any damage to it If you find any damage notify your supplier immediately Only the consignee may institute a claim with the carrier for damage incurred during shipping Be sure to save the carton and all packing materials for the carrier s inspection Should you ever need to ship the unit only use the original factory packaging If the shipping carton is unavailable contact your supplier to obtain a replacement The EPAK 2500R carton should contain e EPAK 2500R amplifier control unit e User s manual e PowerCon detachable power cable 2 2 RACK MOUNTING EPAK 2500R s will mount in standard 19 rack systems Integral rear mounting rack ears are also provided for additional support do not rely on fixing and mounting the EPAK 2500R using just the front panel as support Use eight screws and washers to mount the amplifier to the equipment rack rails four for the front and four for the rear We recommend using a shock mounted rack for touring use to prolong the life of your EPAK 2500R FRONT PANEL 481 4 mm QOQQ0000000000000000000000000000000000000000000 c
9. elop technologies that eliminate distortion and loss of information providing a true dynamic representation of the source Our aim is to create audio products that absorb you place you within the performance and deliver a listening experience beyond expectation Kv KV2 Audio Nadrazni 936 399 01 Milevsko Czech Republic vi Tel 44 0 1423 816868 www kv2audio com KVV120030 00 03 0
10. l s input Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as e Power supply cord or plug is damaged e Liquid has been spilled into the unit e An object has fallen into the unit e The unit has been exposed to rain or moisture e The unit does not operate normally e The unit was dropped or the enclosure is damaged Do not remove top or bottom covers Removal of the cover will expose hazardous voltages There are no serviceable parts inside and removal may void the warranty An experienced user shall always supervise this professional audio equipment especially if inexperienced adults or minors are using the equipment CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL WARNING To prevent fire or electric shock do not expose this equipment to rain or moisture INDEX Introduction Getting Started 2 1 Unpacking 2 2 Rack Mounting 2 3 Cooling 2 4 AC Requirements Features 3 1 Front panel 3 2 Rear panel Using the System 4 1 Normal Set Up 4 2 Using the Mid Hi Insert 4 3 Feeding the Subwoofers from another source Specifications Block Diagram Warranty Service amp Contact Information INTRODUCTION Thank you for purchasing this KV2 Audio EPAK 2500R controller amplifier unit This manual contains important information on
11. nce with the instructions Do not operate the EPAK 2500R near heat producing devices such as radiators heat registers stoves or other apparatus that produce heat Always operate the unit with the chassis ground wire connected to the electrical safety earth Do not defeat the safety purpose of a grounding type plug A grounding type plug has two pins and a third grounding prong The third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Connect only to AC power outlets rated 115 250V 50 60Hz Do not use this EPAK 2500R if the power cable is broken or frayed Protect the power cable from being walked upon or pinched particularly at the plugs and the point where it exits from the apparatus Only use accessories specified by the manufacturer The unit is intended to be used in a 19 rack Follow the mounting instructions When a rack on wheels is used use caution when moving the loaded rack to avoid injury from tipping over Unplug this apparatus during lightning storms or when unused for long periods of time Do not connect an EPAK 2500R output in parallel or series with any other EPAK 2500R s output Do not connect the EPAK 2500R output to any other voltage source such as battery mains source or power supply regardless of whether the EPAK 2500R is turned on or off Do not run the output of any EPAK 2500R back into another channe
12. operating this unit correctly and safely Please take some time and read this manual to familiarise yourself with the advanced features of this unit The EPAK 2500R is a four way active control and amplification system specifically designed for the KV2 Audio ES Series modular loudspeaker systems It houses all signal processing and amplification as well as providing control for six different subwoofer cabinet configurations powered by the internal subwoofer amplifier along with providing control signal to an external VHD3200 subwoofer amplifier to power further subwoofer cabinets if needed The amplifier compliment inside the EPAK 2500R is as follows High Frequency 100 watt Class AB push pull low intermodulation design Mid Frequency 200 watt Class AB push pull low intermodulation design Mid Bass 600 watt high efficiency current enhancing switch mode technology with Linear Active Filter Subwoofer 1600 watt high efficiency current enhancing switch mode technology with Linear Active Filter The EPAK 2500R is Line Driver Ready and has its own input impedance selector switch on the rear panel to accurately match up the input impedance to the output of any mixer used In most cases it would be advisable to use a VHD LD4 line driver in addition at the mixer end to ensure that the line to the amplifier is driven correctly and the signal integrity maintained Although this unit is simple to operate improper use can be
13. urce For further information see Using the System INTERNAL SUB OUT T EWURE PROPER OF GRATION ALLOW AM IMEMUM OF 6 MS CLEARA ME FROM THG SURFACE AMO ADEQUATE VOT LATION TO REDUCE THERGE OF 5 External Sub In External Sub Out Apart from providing signal processing and power amplification for driving the ES 1 0 enclosure and ES subwoofers the EPAK 2500R also provides processed outputs for feeding VHD 3200 subwoofer amplifiers to drive various combinations of ES and VHD subwoofers The signal for this is usually derived from the Main Input on the EPAK 2500R but with these Sub In and Sub Out connectors and associated switch the option is available to derive the signal input for the external subwoofer section from a different source For further information see Using the System 6 PowerCon Power Connector Accepts a standard PowerCon terminated AC cable 7 Fans The cooling fans operate continuously while the EPAK 2500R is on An internal temperature sensor increases the speed of the fans during high temperature conditions Air enters through the front grille and exits through the rear Be sure to allow adequate air flow to the front of the rack in which the EPAK 2500R is mounted 8 ES 1 0 EP6 Connector Accepts a standard EP6 terminated loudspeaker cable for connecting up to a single ES 1 0 cabinet We recommend using 2 5mm core cables 9 Internal Sub EP4 Connector Accepts a standard EP4 terminated loudspeaker c
14. ust flow without restriction If you are using racks with closed backs use fans on the rear rack panel to ensure an ample air supply 2 4 AC REQUIREMENTS A PowerCon cable is provided to connect the EPAK 2500R to a suitable AC power supply The PowerCon is a connector without breaking capacity i e the PowerCon should not be connected or disconnected under load or while it is live Always isolate your AC supply before disconnecting the PowerCon connector Your EPAK 2500R will be supplied pre set to the voltage used in your area The table below provides typical current draw figures for the EPAK 2500R Current draw with Current draw with AC Input amplifier running at Average amplifier running at Power Each Channel Peak Power Each Channel 250V 8 25A 12 5A 230V 9A 14A 115V 28A FEATURES 3 1 FRONT PANEL Q OOOO O IN UIT 1 AC Mains Switch The EPAK 2500R has a combination AC Mains switch circuit breaker on the front panel If the switch shuts off during normal use push it back to the ON position once If it will not stay on you should take the unit to qualified service personnel to have it serviced 2 Unproper Use LED If the EPAK 2500R is connected improperly then this LED will light and the unit will shut down 3 Limit Thermal LED This is a dual colour LED when green it indicates that the audio limiter has been activated When red it indicates that the thermal limit of the EPAK 2500R has been e
15. we EPAK2500R User Guide A M 11 SAKA WHD TECHNOLOGY suBseTUP iS INTERNAL EXTERNAL HIFREQ LEVEL 3 4 ESIBHESIS ES1 84E51 5 EPEN 2xESI5 2xES15 IAN 518 ESI y 2 5 528 52 ee ve ES25 2xES18 Pi O oO cy E O cu oO cy E O O cy cy cy oO cu cy cy cy oO co cu uu oO cu cy cy oO cu cu uo oO cu oO cy oO c cy cy cy oO cu 0000000000000000000000000000000000000000000000 o 3 ey En o o gt lt 200R EPAK The future of sound Made perfectly clear At KV2 Audio our vision is to constantly develop technologies that eliminate distortion and loss of information providing a true dynamic representation of the source Our aim is to create audio products that absorb you place you within the performance and deliver a listening experience beyond expectation IMPORTANT SAFETY INSTRUCTIONS Before using your EPAK 2500R be sure to carefully read the applicable items of these operating instructions and the safety suggestions P 2 3 A 11 12 13 14 15 16 Keep this manual for future reference Heed all warnings Follow all instructions Do not use this unit near water Do not spill water or other liquids into or on the unit Do not operate the EPAK 2500R while wet or standing in liquid Clean only with dry cloth Do not block the air intake or exhaust ports Install the unit in accorda
16. xceeded and the unit has shut down because of this 4 Power Service LED This is a dual colour LED when green it indicates that the AC power is on When red it indicates that there is a fault condition sensed within the EPAK 2500R and that the unit needs servicing 5 Signal Present This green LED indicates when audio signal is present at the EPAK 2500R s input ee mn CHM 9 6 Sub Set Up This switch is set according to which combination of subwoofers is being used with the system Refer to Using the System for further information the various combinations are listed in the table within this section 7 Hi Freq Level This controls the output level of the high frequency amplifier to enable you to adjust the high frequency component of the ES system to the desired level 8 ES 1 0 System This switch sets the controller for use when either a single ES 1 0 is being used or a double system using 2 ES 1 0 s are being used In this mode another EPAK 2500R would be required to power the second ES 1 0 and both switches should be set to Double 9 Master Level This is the master level control for the system and will affect both the ES 1 0 and the subwoofer outputs 10 Ext Sub Level This is the level control for the External Sub output it is post the Master Level control 11 Sub Level This is the level control for the Internal Sub output it is post the Master Level control
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