ESP2000
User Guide
min. 2Ω OUTPUTS
BRIDGE
2000W / 4Ω
SERIAL NUMBER
WWW.KV2AUDIO.COM
KV2 AUDIO, MANUFACTURED IN THE EUROPEAN UNION
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE
THIS PANEL OR ANY ATTACHED COMPONENTS. NO OPERATOR SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. TO
REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
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.
POWER /
THERMAL
CHANNEL 2CHANNEL 1
POWER /
THERMAL
ON
OFF
/
ON
+BASS
LIMITER
LIMITER
SIGNAL
0 dB
-6 dB
8
0 dB
-6 dB
8
/
ON
+BASS
LIMITER
LIMITER
SIGNAL
Our aim is to create audio products that absorb
you, place you within the performance and deliver
a listening experience beyond expectation.
Contents
Introduction
How to use this manual
Icons used include
Important Safety Instructions
Introducing the ESP2000
Dimensions
Chapter 2: Getting Started
Unpacking
Rack Mounting
Cooling
AC Power Requirements
AC Power
Voltage Requirements
The Power Connector
Current Requirements
AC Cable Colour Coding
Safety Summary
3
3
3
4
4
4
5
5
5
5
5
6
6
7
7
7
Warranty
Your ESP2000 is covered against defects in material
and workmanship. Refer to your supplier for more
details.
Service
In the unlikely event that your ESP2000 develops a prob-
lem, it must be returned to an authorised distributor,
service centre or shipped directly to our factory.
Because of the complexity of the design and the risk of
electrical shock, all repair
qualified technical personnel. If the unit needs to be
shipped back to the factory, it must be sent in its origi-
nal carton. If improperly packed, the unit may be dam-
aged. To obtain service, contact your nearest KV2
Audio Service Centre, Distributor or Dealer.
s must be attempted only by
Chapter 3: Features
Front Panel
Rear Panel
ESP2000 Specifications
8
9
10
Page | 2
How to use this manual
As you read this manual, you’ll find figures and
diagrams to help you understand and visualise
what you’re reading. You’ll also find numerous
icons that serve as cues to flag important information or warn you against improper or potentially
harmful activities.
Icons Used Include
“NOTE” identifies an
important or useful piece
NOTE
TIP
of information relating to
the topic under discussion.
“TIP” offers a helpful
tip relevant to the topic
at hand.
consult an electrician for replacement of the
obsolete outlet.
11. Protect the power cord from being walked
on or pinched, particularly at plugs, convenience receptacles and the point where they exit
from the amplifier. The AC mains plug or appliance coupler shall remain readily accessible for
operation.
12. Only use accessories specified by KV2 Audio.
13. The unit is intended for use in a 19” rack.
Follow the mounting instructions. When a rack on
wheels is use, use caution when moving the loaded
rack to avoid injury from tipping over.
14. Install the product only with both front and
rear supports.
!
CAUTION
CAUTION:
done by experienced professionals.
Installation should only be
“CAUTION” gives notice
that an action can have
!
CAUTION
Important Safety Instructions
1 Read all product instructions.
2. Keep printed instructions, do not throw away.
3. Respect and review all warnings.
4. Follow all instructions.
5. Do not use this unit near water, in unprotected
out door areas or in rain or wet conditions.
6. Clean only with dry cloth.
7. Do not block any ventilation openi
8. Install in accordance with KV2 Audio’s
recommended installation instructions.
9. Do not install near any heat sources such as heat
radiators, heat registers, stoves or other apparatus
that produce heat.
10. Do not defeat the safety purpose of the grounding type plug. A grounding type plug has two
blades and a third grounding connector. The third
connector is provided for your safety. If the provided
plug does not fit into your outlet,
serious consequences and
could cause harm to
equipment or pers
delays, or other problems.
onnel,
ngs.
15. Unplug this amplifier during lightning
storms or when unused for long periods of time.
16. Do not connect a ESP2000’s output in parallel
or series with any other ESP2000’s output. Do not
connect the ESP2000 output to any other voltage
source, such as a battery, mains source or power
supply, regardless of whether the ESP2000 is
turned on or off.
17. Do not run the output of any ESP2000 back
into another channels input.
18. Refer all servicing to qualified service personnel. Servicing is required when the amplifier
has been damaged in any way, such as when
the power-supply cord or plug has been damaged; liquid has been spilled or objects have
fallen into the amplifier; rain or mo
entered the amplifier; the amplifier has been
dropped; or when for undetermined reasons
the amplifier does not operate normally.
19. Do not remove top or bottom covers.
Removal of the cover will expose hazardous
voltages. There are no user serviceable parts
inside and removable may void the warranty.
20. An experienced user shall always supervise
this professional audio equipment.
isture has
Page | 3
Introducing the ESP2000
The ESP2000 is a two channel rack mountable power amplifier. The unit contains two
seperate 1000 watt amplifiers, two independent power supplies, (each channel running off
each power supply), two signal paths, inputs and
outputs as well as limiting and low frequency
enhancement on each of the two channels
within a two rack unit chassis. It can be used
to power any range of passive loudspeakers as
well as being specifically designed for optimised performance with KV2 Audio’s ESD
Series.
Whilst this unit is simple to operate improper
is is
use can be dangerous. Th
a very highpowered device that can output high voltages
and sizeable currents. Always use safe operating techniques with the ESP2000.
FOR YOUR SAFETY, READ THE IMPORTANT
PRECAUTIONS SECTION AS WELL AS THE
INPUT, OUTPUT AND POWER CONNECTION
SECTIONS OF THIS MANUAL.
Chapter 2: Getting Started
Unpacking
Unpack the ESP2000 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 any damage incured during shipping. Be
sure to save the carton and all packaging
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 ESP2000 carton should contain:
ESP2000 powe
r amplifier
User’s guide
PowerCon detachable power cable
FRONT PANEL
REAR PANEL
SIDE PANEL
88 mm
482,6mm
POWER /
THERMAL
SIGNAL
/
-6 dB8-6 dB
LIMITER
LIMITER
ON
+BASS
8
0 dB
POWER /
CHANNEL 2CHANNEL 1
THERMAL
SIGNAL
/
LIMITER
LIMITER
ON
+BASS
0 dB
433,8mm
WWW.KV2AUDIO.COM
KV2 AUDIO, MANUFACTURED IN THE EUROPEAN UNION
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE
THIS PANEL OR ANY ATTACHED COMPONENTS. NO OPERATOR SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. TO
REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
ON
OFF
APPLIANCE TO RAIN OR MOISTURE.
SERIAL NUMBER
BRIDGE
2000W / 4Ω
min. 2Ω OUTPUTS
456,5 mm
Page | 4
Rack Mounting
The ESP2000 will mount in a standard 19”
rack system. Integral rear mounting rack ears
are also provided for additional support. It is
important that you do not rely on fixing and
mounting the ESP2000 using just the front
panel as the support. Use eight screws and
washers to mount the amplifier to the equipment
rack rails, (four for the fronts and four for the
rear). We recommend using a shock mounted
rack for touring use to prolong the life of your
ESP2000.
Cooling
The ESP2000 has a comprehensive cooling system featuring chassis-sealed PCB board mounting and shock mounted, speed controlled
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
oling air to escape. If the unit is rack-mount-
co
ed, 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.
fans.
AC Power Requirements
The ESP2000 is an advanced power amplifier.
Understanding power distribution, voltage and
current requirements, as well as electrical safety
issues, is critical to the safe operation of the
ESP2000.
AC Power
The ESP2000 uses a single PowerCon 3-pole
AC main systems with locking
prevent accidental disconnection. The main AC
connectors (blue) serve as the power inputs.
The ESP2000 operates in either 115V, 230V or
250V modes. Although pre-configured at the
factory, the unit’s operating voltage mode can
be changed in the field.
Voltage Requirements
The ESP2000 operates safely and without
audio discontinuity if the AC voltage stays within the operating window of 100V÷120V in
115V mode, 205V÷240V when working in
230V mode and 225÷260V when working in
250V mode at 50 or 60Hz.
CAUTION:
!
CAUTION
power immediately. Verify that the voltage is
within the proper range. If the problem persists,
please contact KV2 Audio or an authorized
service center.
If the voltage drops below the low boundary of
its safe operating range, the amplifier will shut
down if the voltage does not rise above the low
boundary before storage circuits are depleted.
How long the amplifier will continue to function
during brownout depends on the amount of
voltage drop and the a
the drop. If the voltage increases above the
upper boundary of the range, the power supply
can be damaged.
illuminate or the system does not
respond to audio input, remove AC
If the On LED does not
udio
connectors to
source level during
Page | 5
NOTE:
It is recommended that the
voltage supply be within the rated
NOTE
voltage window. This ensures that
AC voltage variations from the service entry or peak voltage drops due to cable runs - do
not cause the amplifier to cycle on and off or
cause damage to the power supply.
Current Requirements
Each of the ESP2000’s power supply inputs
require approximately 20 Amps max at 115V AC
for proper operation. This means that both of the
ESP2000’s power supplies must be powered from
an individual 20 A breaker when running in 115V
mode.
NOTE:
For best performance, the AC
cable voltage drop should not exceed
NOTE
10 volts, or 10 percent at 115 volts
and 5 percent at 230 or 250 volts.
Make sure that even with the AC voltage drop,
the AC voltage always stays within recommended
operating ranges. The minimum electrical service
amperage required by an ESP2000 amplifier is
the sum of each amplifiers maximum continuous rms current. An additional 50 percent above
that amperage is recommended to prevent peak
voltage drops at the service entry.
The Power Connector
The ESP2000 requires grounded outlets. It is
very important that the amplifiers AC supply
be proper
ly grounded in order to operate
safely and properly. Use the PowerCon AC
cable-wiring diagram overleaf to create international or special-purpose power connectors:
When operating in 230 V mode each of the ESP
2000’s power supply inputs requires approximately 10 Amps max. This allows a complete ESP2000
to be po
wered from one 20 A breaker at at 230
V.
The ESP2000 presents a dynamic load to the
AC mains, which causes the amount of current to
fluctuate depending on quiet or loud operating
levels. Since different cables and circuit breakers
heat up at varying rates, it is essential to understand the types of current ratings and how they
correspond to circuit breaker and cable specifications.
The maximum long-term continuous current is the
maximum rms current during a period of at least
ten seconds. It is used to calculate the temperature rise in cables in or
der to select a cable size and
gauge that conforms to electrical code standards.
It is also used to select the rating for slow-reacting
thermal breakers.
Page | 6
Power connector assembly
The burst current is the maximum rms current
during a period of approximately one second,
used to select the rating of most magnetic
breakers and to calculate the peak voltage
drop in long AC cables according to the formula:
V pk (drop)= I pk x R (cable total)
The ultimate short-term peak current is used
to select the rating of fast reacting magnetic
breakers. Use the table below as a guide
when selecting cable gauge size and circuit
breaker ratings for your operating voltage.
Current Draw
Current Draw
Max Long Term
Continuous
Burst Current
Short Term Peak
115V Mode
20 A rms
30 A rms
80 A peak
230V, 250V
10 A rms
15 A rms
40 A peak
AC Cable Colour Coding
If the colours referred to in the diagram don’t
correspond to the terminals in your plug, use
the following guidelines: Connect the blue wire
to the terminal marked with an N or coloured
black. Connect the brown wire to the terminal
marked with an L or coloured red. Connect
the green and yellow wire to the terminal marked
with an E or coloured green or green and yellow.
!
CAUTION
CAUTION:
ground connection. Always use
a grounded outlet and plug.
The ESP2000 requires a
Safety Summary
To reduce the risk of electric shock, disconnect
the amplifier from the AC mains before
installing the audio cable. Reconnect the power
cord only af
ter making all signal connections.
Connect the amplifier to a two pole, threewire grounding mains receptacle.
The mains plug shall remain easy to operate.
The amplifier must be powered from the same
phase as other interconnected powered units.
The receptacle must be connected to a
fuse or circuit breaker. Connection to any
other type of receptacle poses a shock
hazard and may violate local electrical codes.
Do not allow water or any foreign object
to get inside the amplifier. Do not put objects
containing liquid on or near the
unit. To reduce the risk of overheating the
amplifier, avoid exposing it to direct
sunlight. Do not install the unit near heatemitting appliances, such as a
room heater
or stove. This amplifier contains potentially
hazardous voltages. Do not attempt to
disassemble the unit. The unit contains no user
serviceable parts, repairs should be performed
GREEN / YELLOW
Power cable color coding
Page | 7
Chapter 3: Features
Front Panel
1 2 3 4 5 6
POWER /
THERMAL
SIGNAL
LIMITER
LIMITER
+BASS
/
OFF
8
CHANNEL 2CHANNEL 1
-6 dB
8
0 dB
POWER /
THERMAL
SIGNAL
-6 dB
/
LIMITER
LIMITER
OFF
+BASS
0 dB
1) AC Mains Switch
The ESP2000 has combination AC mains switch/circuit breakers on the front panel. If either of the
switches shut 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) +Bass Switch
When depressed this switch activates a bass enhancement feature that increases the chosen channels output by 6dB at 60Hz
3) Limiter Switch
The ESP2000 features RMS limiting on each channel. This feature is active so long as the switch is
left un-pressed. The RMS lim
iting is deactivated when the switch is depressed.
4) Channel Input Level Adjustment
Each channel of the ESP2000 features an Input Level adjustement potentiometer that allows the
user to individually adjust all four channel’s input levels from oo through -6dB in the vertical position
and up to to 0dB.
5) Power On / Thermal
These are dual colour LED’s. When green they indicate that the Power Switch is ON and that channel of the amplifier is powered up. When red they indicate that that channel has overheated and
shut down. The unit will Auto Reset after it cools down to a safe operating temperature.
6) Signal Present / Limiter Indicator
These are dual colour LED’s. When green they indicate that signal is present at the Input to that
particular channel of the amplifier. When yellow they indicate that the audio limiter has been acti-
for that particular channel of the amplifier.
vated
Page | 8
Rear Panel
1 2 4 3 4 5
WWW.KV2AUDIO.COM
KV2 AUDIO, MANUFACTURED IN THE EUROPEAN UNION
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE
THIS PANEL OR ANY ATTACHED COMPONENTS. NO OPERATOR SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. TO
REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
ON
OFF
APPLIANCE TO RAIN OR MOISTURE.
SERIAL NUMBER
1) Main Inputs
These are the input connectors for all four channels with associated ‘Through Output’ connectors
for sending signal to other devices.
BRIDGE
2000W / 4Ω
min. 2Ω OUTPUTS
2) Bridge Mono Mode
As well as being a high quality stereo channel amplifier solution the ESP2000 is capable of working in
“Bridge Mono”mode. This requires the utilisation of two channels working together to produce
a larger single output - suitable for driving large subwoofers or high powered full range boxes.
Use channel INPUT 1 only as bridge mode input, INPUT 2 is unconnected. Plug positive speaker
input pin at positive (RED) OUTPUT 1 and negative speaker pin at positive (RED) OUTPUT 2.
NOTE
NOTE:
Audio VHD3200 subwoofer amplifier which will offer the same power output but with improved performance. For
applications where the high powered loudspeaker load is required to produce a full range signal, including Mid and
High frequency reproduction above 1kHz an ESP2000 will offer superior results.
If Bridge Mono is your specific requirement, particularly driving subwoofers, you may prefer to utilise a KV2
3) PowerCon Power Connectors
The ESP2000 accept standard PowerCon terminated AC Mains cables. The ESP2000 uses one
connector per two channels.
4) Fans
The cooling fans operate continuously while the ESP2000 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 allo
w adequate air flow to the front of the rack in which
the ESP2000 is mounted.
5) Main Outputs
Each channel of the ESP2000 is equipped with binding posts and Neutrik Speakon® connectors on
the Main Outputs. The minimum recommended output is 2Ω. When running in Bridge Mono Mode 4Ω.
Page | 9
ESP2000
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Specifications
System Acoustic Perfomance
-1dB Response
Channel Crosstalk
nal to Noise Ratio
Si
Total Harmonic Distortion
Output Channels
Amplier Type
Number of Channels
Total Out
Max. Output Volta
Max. Out
Minimum load impedance per channel
Out. Power 16Ω - 1 channel / 2 channels loaded
Out. Power 8Ω - 1 channel / 2 channels loaded
Out. Power 4Ω - 1 channel / 2 channels loaded
Out. Power 2Ω - 1 channel / 2 channels loaded
Out. Power 16Ω - brid
Out. Power 8Ω - brid
Out. Power 4Ω - brid
ut Power
e
ut Current
ed
ed
ed
Signal Input
Input Channels
ut Sensitivit
In
Input Impedance
nal Output
Si
3Hz ÷ 40kHz
>70dB
>115dB
<0.005% (1W) / <0.01% (cli
Hi
h Eciency, Emitter coupled
2
2000W
eak)
78V (
48A (
eak)
2Ω
175W / 160W (RMS)
340W / 300W (RMS)
600W / 500W (RMS)
1000W / 800W (RMS)
600W (RMS)
1000W (RMS)
1500W (RMS)
XLR
1.55V
20kΩ (balanced)
XLR Throu
h
-1dB)
Speaker Output
Speaker Output
Features
Level Control
Subwoofer Level Control
RMS Limiter
Indicators
Power
Power Connector
Operatin
Recommended Am
Soft Start
Protection
Coolin
Voltage
erage
Physical Dimensions
Height
Width
th
De
ht
Wei
Neutrik S
-∞ ÷ 0dB
+6dB @ 60Hz
On / O
Power ON/Thermal, Si
Neutrik PowerCon®
115V / 230V / 250V, (50 / 60Hz)
10A 115V
YES
Thermal breaker
2x temperature controlled fans
88mm (3.5"), 2RU
483mm (19.00")
496,4mm (19.54")
16k
eakon®, 2x Binding posts
nal/Limiter
6A 230V | 6A 250V
Page | 10
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.
KV2 Audio, Nádražní 936, 399 01 Milevsko, Czech Republic
Tel. +44(0)1423 816868
www.kv2audio.com
KVV120080-00-04-0
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