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FEATURES

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

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

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 source. For
further information see ‘Using the System’.

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
cable for connecting up to various ES series
subwoofers. We recommend using 2.5mm/core
cables.

3 4 

3

3.2 REAR PANEL

Summary of Contents for EPAK 2500R

Page 1: ...EPAK 2500R OPERATOR S MANUAL EPAK 2500R CONTROLLER AMPLIFIER UNIT ...

Page 2: ...e manufacturer 12 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 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Do not connect an EPAK 2500R output in parallel or series with any other EPAK 2500R s output Do not connect ...

Page 3: ...ounting 2 3 Cooling 2 4 AC Requirements 3 Features 3 1 Front panel 3 2 Rear panel 4 Using the System 4 1 Normal Set Up 4 2 Using the Mid Hi Insert 4 3 Feeding the Subwoofers from another source 5 Specifications 6 Block Diagram 7 Warranty Service Contact Information ...

Page 4: ...B 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 t...

Page 5: ...AL SUB IN EXTERNAL SUB IN EXTERNAL SUB OUT 50 Ω 10 kΩ TO ENSURE PROPER OPERATION ALLOW A MINIMUM OF 6 INS CLEARANCE FROM THIS SURFACE AND ADEQUATE VENTILATION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THIS PANEL OR ANY ATTACHED COMPONENT NO OPERATOR SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO ...

Page 6: ...mplifier 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 must 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 2 4 AC REQUIREMENTS A PowerCon cable is provided to connect the EPAK 2500R to a suitable AC power supply The PowerCon is a con...

Page 7: ... when audio signal is present at the EPAK 2500R s input 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 freque...

Page 8: ...ble to derive the signal input for the internal subwoofer section from a different source For further information see Using the System 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 combinatio...

Page 9: ...one in the signal chain set to 50Ω Six different combinations of sub woofers are accommodated for when using the EPAK 2500R The combinations are as follows 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 EPAK 2500R Setting Setting 1 Setting 2 ...

Page 10: ...sert switches in Disengage position Main Signal Input ES 1 0 ES 1 8 ES 1 8 DELAY LINE Mid Hi Insert switch in Engage position 4 2 USING THE MID HI INSERT 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 se...

Page 11: ...ing in the EPAK 2500R 4 3 FEEDING SUBWOOFERS FROM ANOTHER SOURCE t n o r f n o h c t i w s p U t e S b u S 5 n o i t i s o p t a l e n a p t r e s n I b u S h t o B n i s e h c t i w s e g a g n E n o i t i s o p t u p n I l a n g i S n i a M 0 1 S E 5 2 S E 8 1 S E r e f o o w b u S n w o l F g n i x i M m o r f d e e f e l o s n o c d e k c a t s d n u o r G m o r f d e e f r e f o o w b u S e l...

Page 12: ...ent enhancing Switch Mode technology with Active Filter Rated Continuous Power 600 Watts Distortion 005 THD Operating Bandwidth 125 Hz 450 Hz Sub Bass Frequency Amplifier Type High efficiency current enhancing Switch Mode technology with Active Filter Rated Continuous Power 1600 Watts Distortion 005 THD Operating Bandwidth 20 Hz 125 Hz Physical Height 7 00 177 8mm Width 19 00 483mm Depth 16 34 415...

Page 13: ...T EXTERNAL SUB OUT PROTECTION POWER SUPPLY SIGNAL MANAGEMENT CONTROL UNIT HI 2 5 kHz 40 kHz 100 WV OUTPUT ES1 0 MIDHI 450 Hz 2 5 kHz 200 W MIDLOW 125 Hz 450 Hz 600W SUB SET UP EXT SUB LEVEL 6 dB SUB LEVEL 6 dB MASTER LEVEL 6 dB HI FREQ LEVEL 3 dB ES1 0 SYSTEM 1 PER SIDE 2 PER SIDE INTERNAL SUB OUT LOW 20 Hz 125 Hz 1800 W SIGNAL PRESENT UNPROPER USE LIMIT SERVICE POWER THERMAL PROTECTION 6 ...

Page 14: ...f 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 CONTACT INFORMATION KV2 Audio International KV...

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