KV2 Audio ES1.0 User manual

User Guide
ES Series
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 expectations.
· ES1.0 · ES1.5 · ES1.8 · ES2.5 · ES2.6

ES Series · Contents
Contents
ES1.0 ∙ Mid/High Module 3
Overview 3
Technology 4
Specications 5
Frequency characteristics 6
Drawing 7
Accessories 8
ES1.5 ∙ Compact Bass Module 9
Overview 9
Technology 10
Specications 11
Drawing 12
Accessories 13
ES1.8 ∙ Bass Module 14
Overview 14
Technology 15
Specications 16
Drawing 17
Accessories 18
ES2.5 / ES2.6 ∙ Bass Module 19
Overview 19
Technology 20
Specications 21 - 22
Drawing 23
Accessories 24
Warranty · Service 25
ES Series · Contents

ES1.0 · Overview
ES1.0 - part number KVV 987 002
Compact Active-driven
Mid/High Module
ES1.5
part num. KVV 987 003
Single fteen-inch
compact Bass Module
ES Modular Sound System Benets
Total exibility
Choose the active driven subwoofer combination you need for each application and venue. Rotate the ES1.0 horn to operate
the system in either a horizontal or vertical stack.
Lightest-weight compact active SR system yet
All the benets of active sound reinforcement technology but with the electronics in a separate module.
Superb sound
Greater dynamic range than any current active design.
Easy set-up
Ergonomic weight-balanced design with four handles, eight suspension points and "integrating feet" for easy positioning on
stage. Plug-and-play connection to EPAK™ amp/processor module.
For full range systems, use one, or a combination of, the following Bass Modules:
ES1.8
part num. KVV 987 004
Single eighteen-inch
high-output Bass Module
ES2.5
part num. KVV 987 005
Double fteen-inch, 4Ω
high-output Bass Module
ES2.6
part num. KVV 987 150
Double fteen-inch, 8Ω
high-output Bass Module
Application
Specically designed as an extreme high output, compact mid-high enclosure
as part of ES systems
• For live performance and music playback
• Small to large live concerts
• Small to medium nightclubs
• Housesofworship •PortablePA
• Scalable into larger multi-tasking projects and systems
Introduction
The ES1.0 is a 3-way, very high output, active-driven, mid-high / mid-bass module
designed as part of a complete ES system, driven by the EPAK2500/R control and
amplication unit. The ES1.0 is compact, lightweight and can be combined with
a variety of ES series subwoofers. As a single system it oers one of the highest
quality portable sound reinforcement solutions on the market today. When coupled
with another ES1.0 (running two horizontally per side) it becomes an even more
powerful tool, providing peak SPL of 139dB and a throw of up to 40 metres for
applications of up to 3000 people.
EPAK2500
part name part num.
EPAK2500-115V KVV 987 001
EPAK2500-230V KVV 987 000
EPAK2500-250V KVV 987 134
EPAK2500R
part name part num.
EPAK2500R-115V KVV 987 062
EPAK2500R-230V KVV 987 061
EPAK2500R-250V KVV 987 112
Requires EPAK unit for control electronics and amplication.
3
ES1.0 · Overview

ES1.0 · Technology
Technology
The ES1.0 is a 3-way high output, active-driven, compact mid/high Loudspeaker module. It is designed as part of a sound
reinforcement speaker system that includes the EPAK™ system control and amplication system plus a compliment of application
specic Bass modules. The ES1.0 Loudspeaker system benets from being designed exclusively to operate above 130 Hz.
By optimizing the ideal operating band pass of each system component, the ES1.0 can achieve extremely high output levels
consistently and safely.
Active-driven by the EPAK2500/R™ unit
Power, electronic crossovers, phase alignment, equalization, time correction and speaker protection are provided within the
EPAK unit. This "one plug in, one-plug-out" system ensures fast, easy set up and complete control. It gives you the benets
of active sound reinforcement technology, yet locates the electronics in an easy-access "stand alone" or Rackmount module.
Together, the ES1.0 and EPAK2500/R units deliver the highest dynamic range of any system currently available, providing new
levels of clarity, depth and resolution.
Advanced compression driver
KV2 Audio's transducer partner, 18 Sound in Cavriago, Italy, manufactures and co-develops all ES1.0 components.
The compression driver is a 1.75-inch titanium diaphragm design, featuring a complex geometry phase plug that dramatically
lowers distortion, eliminates ring modes and provides clearer, ripple free performance.
Exclusive KV2 rotatable horn design for maximum exibility
The ES1.0 features a mid/high integrated horn design with a number of unique features. First, the horn can be rotated 90°,
allowing for complete exibility in selection of vertical, horizontal and left / right system set up. The horn design is based on
constant-directivity geometry with an emphasis on maintaining low transducer compression ratios, high output and wide
dispersion (90 x 40). The midrange speaker is xed to a large aluminum heat sink which is attached to a precisely designed
midrange "chamber". The combination provides optimal cone loading and heat dissipation. Further loading and dispersion is
controlled through a 2.28" (58 mm) precision phase plug.
Heat-resistant midrange
Midrange requencies between 500Hz and 2.5kHz are reproduced by a new six-inch midrange speaker that provides 106 dB
of sensitivity (1 watt / 1 meter) when coupled with the integrated horn. The magnetic motor assembly features a high temperature
1.75" (44 mm) diameter voice coil assembly and extensive use of neodymium. Because of the limited linear movement of most
midrange transducers - usually 2-3 mm - ventilation of the voice coil assembly and magnetic structure is poor and failure rate
from heat fatigue is high. The ES1.0 midrange dissipates heat passively through the use of a massive aluminum heat sink. When
combined with the EPAK unit control electronics, the system provides high output levels safely and consistently over innite
periods of time and dramatically reducing heat associated transducer problems such as power compression and decreased
dynamics.
Neodymium mid-bass transducer
The ES1.0 features a twelve-inch neodymium mid-bass speaker mounted on a slot-loaded horn design. It is important to note
that neodymium is not a transducer panacea, as it cannot safely operate at the same typical operating temperatures ferrite
does. Using neodymium requires a profound understanding of material science and nite element analysis to properly design
a stable, high force magnetic structure that functions correctly. 18 Sound and KV2 e engineering jointly designed the twelve-
inch mid bass driver for the ES1.0. The ES1.0 mid-bass transducer reproduces frequencies from 130Hz to 500Hz. The horn mouth
is designed for optimal coupling with the mid/high horn assembly in either the vertical or horizontal position. The horn design
is responsible for the mid-bass speaker's resulting high sensitivity and output. The high eciency neodymium motor provides
an extraordinary amount of force that delivers complete control of the cone mass and a high overall weight loss.
Easy to move and set up
The ES1.0 is a very compact enclosure featuring a number of ergonomically designed components that make it a light, small,
and easy speaker to set up and use. KV2 designed and tooled new cabinet handles for use in their products. The two side
handles make it easy to pick up and reposition the ES1.0 in a natural, instinctive manner.
There are four industrial grade, internal braces placed at each corner and one internal brace on the back. Corner braces are held
in places by four M6 and two M10 bolts, the back brace is held by two M6 and one M10, providing a wide range of installation
and suspension exibility.
ES1.0 rear panel (cable connection to EPAK unit Amplier/Controller)
4
ES1.0 · Technology

ES1.0 · Specications
System Acoustic Perfomance
Max SPL Long-term 131dB
Max SPL Peak 134dB
-3dB Response 130Hz to 20kHz
-10dB Response 85Hz to 28kHz
Impedance Low 16Ω Mid 8Ω High 8Ω
Crossover Point 130Hz, 500Hz, 2.5kHz
High Frequency Section
High Horn Coverage Horizontal / Vertical 90° x 40° rotatable
High Frequency Amplier Requirement 100W from EPAK 2500/R
Throat Exit Diameter / Diaphragm Size 1" / 1.75"
Diaphragm Material Titanium
Magnet Type Neodymium
Mid Range Section
Acoustic Design Horn Loaded
Mid Horn Coverage Horizontal / Vertical 90° x 40° rotatable
Midrange Amplier Requirement 200W from EPAK 2500/R
Woofer Size / Voice Coil Diameter 6" / 1.75"
Diaphragm Material Epoxy Reinforced Cellulose
Magnet Type Neodymium
Mid-Bass Section
Acoustic Design Horn Loaded
Mid-bass Amplier Requirement 600W from EPAK 2500/R
Woofer Size / Voice Coil Diameter / Design 12" / 3" / Inside Outside
Diaphragm Material Epoxy Reinforced Cellulose
Magnet Type Neodymium
Speaker Input
Speaker Input AP6
Cabinet
Cabinet Material Baltic birch
Handles 2
Pole Mount 35 mm
Color "Orange peeled" Matt Black or any RAL
Physical Dimensions
Height 700 mm (27.55")
Width 450 mm (17.71")
Depth 450 mm (17.71")
Weight 34 kg (74.8lbs)
Specications
5
ES1.0 · Specications

ES1.0 · Frequency characteristics
Horizontal Polarplots
Vertical Polarplots
Frequency response
73Hz - 250Hz 500Hz - 2kHz 4kHz - 16kHz
73Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
73Hz - 250Hz 500Hz - 2kHz 4kHz - 16kHz
73Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
6
ES1.0 · Frequency characteristics

ES1.0 · Drawing
Drawing
ES1.0 Architects and Engineer's Specications
The three-way, mid/high loudspeaker system shall incorporate one 12-inch mid-bass (MB) transducer a 6-inch mid range (MR)
speaker and a 1-inch exit compression driver high frequency (HF) transducer. The LF driver shall be mounted onto a slot-
loaded horn located inside a compact wood enclosure tuned for optimum mid-bass response. The HF and MR transducers
shall be loaded on a rotatable, integrated, constant directivity mid/high horn assembly. The system has a nominal coverage
pattern of 90° (horizontal) x 40° (vertical). The loudspeaker enclosure shall have a rectangular shape and shall incorporate, two
side handles with integrated M10 suspension points, four integrated internal braces with eight M10 suspension points, one
M10 suspension point on the back and top hat for pole mounting application. The speaker cabinet shall be nished with an
ultra wear resistant black polymer coating and tted with a weather resistant perforated steel grill. The system shall receive
power from a separate Amplifer. Controller module consisting of separate power ampliers for high, midrange and midbass
transducers as well as signal processing including electronic band pass crossover lters, phase alignment, time correction,
equalization and speaker protection. The speaker system shall connect to the Amplier/Controller Module via proprietary
cables terminated in Amphenol AP-6 connectors. The three-way mid/high loudspeaker system shall be the KV2 Audio ES1.0.
7
ES1.0 · Drawing

ES1.0 · Accessories
Heavy duty cover for ES1.0
part name: Cover ES1.0
part number: KVV 987 119
Heavy duty telescopic speaker
pole for ES/EX series
part name: KV2-H
part number: KVV 987 130
Extended Joining Bracket
for ES1.0 or ES1.5 + ES1.8 or ES2.5
or ES2.6
part name: BRCKT-02
part number: KVV 987 046
- 4 pcs in pack
Short Join Bracket for joining
two ES Series cabinets
part name: BRCKT-001
part number: KVV 987 027
- 4 pcs in pack
Extended Joining Bracket
for 2 pcs ES1.0 or ES1.5
part name: LONG JOINING BRACKET
(BRCKT-003)
part number: KVV 987 026
- 4 pcs in pack
Fly Bar and Bracket for ES systems
part name: FLY BAR - 0002
part number: KVV 987 191
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
- 4 pcs Quick-lock-pins 1/2" included
ES Mid/Hi speaker cable MH15,
AP6 connectors - 1,5 m
part name: MH15
part number: KVV 987 147
- 1,5 m (5ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH60,
AP6 connectors - 6 m
part name: MH60
part number: KVV 987 125
- 6 m (20ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH120,
AP6 connectors - 12 m
part name: MH120
part number: KVV 987 126
- 12 m (40ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH180,
AP6 connectors - 18 m
part name: MH180
part number: KVV 987 127
- 18 m (60ft), Mid/Hi Module hook-up
Cart for 2 pcs ES1.0 or ES1.5
part name: CRT- 0001
part number: KVV 987 030
- wheels not included
Cart Wheels with bolts nuts kit
part name: CRT - WHL
part number: KVV 987 031
- 4 pcs in pack, (rotating), (blue)
Vertical bracket for ES1.0
part name: ES1.0 Vertical Bracket
part number: KVV 987 032
- including two connection bolts
Horizontal bracket
for ES1.0 or ES1.5
part name: ES1.0 Horizontal Bracket
part number: KVV 987 035
- including top hat cover adaptor
plate and two connection bolts
Optional full grille for ES1.0
part name: FULL GRILL ES1.0
part number: KVV 987 131
ES Cable kit
part name: CABLE-KIT
part number: KVV 987 047
The ES Cable Pack consist of four
high-quality Amphenol AP cable
assemblies designed
for use with ES Series.
- 2 pcs LF15
- 1pc LF40
- 1pc MH60
Amphenol AP6 cable-mount
female connector
part name: AP-6-11
part number: KVV 987 050
Amphenol AP6 cable-mount
male connector
part name: AP-6-12
part number: KVV 987 051
Aditional arms for FB-0002
part name: ARMS OF FB - 0002
part number: KVV 987 192
- 2 pcs ARMS OF FB-0002
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
8
ES1.0 · Accessories

ES1.5 · Overview
ES1.5 - part number KVV 987 003
Compact Active-driven
Bass Module
ES Modular Sound System Benets
Total exibility
Use one unit with the ES1.0 Mid/High enclosure, for small systems, or scale up to a maximum of three units for larger
applications. Operate in either a horizontal or vertical stack with same dimensions and footprint as ES1.0.
Lightest-weight compact active SR system yet
All the benets of active sound reinforcement technology but with the electronics in a seperate module.
Superb sound
Greater dynamic range than any previous active design.
Easy set-up
Ergonomic weight-balanced design with four handles, eight suspension points and "integrating feet" for easy positioning on
stage. Plug-and-play connection to EPAK™ amp/processor module.
For full range systems, use with
the ES1.0 Three-way Mid/High Module
ES1.5 can also be combined
with this other ES Series Bass module:
ES1.8
part num. KVV 987 004
Single eighteen-inch
high-output Bass Module
EPAK2500
part name part num.
EPAK2500-115V KVV 987 001
EPAK2500-230V KVV 987 000
EPAK2500-250V KVV 987 134
EPAK2500R
part name part num.
EPAK2500R-115V KVV 987 062
EPAK2500R-230V KVV 987 061
EPAK2500R-250V KVV 987 112
Application
Specically designed to accompany and compliment the ES1.0 as a true full
range compact system
• Portable PA
• Fixed Installations
• Bars and Nightclubs
• Houses of worship
• Can be integrated with other ES subwoofers
Introduction
The ES1.5 is a single 15", extremely compact, high output subwoofer weighing just
30.8 kg (67.9lbs) designed as part of the ES Series speaker system. Used singularly
or in multiples of up to three, alongside a single ES1.0 mid high cabinet, the system
is powered by the EPAK2500/R Amplier ensuring fast, easy set up with perfect
balance and complete control. The EPAK2500/R also allows up to two ES1.5's to be
used alongside an ES1.8, where the ES1.5 can either be own alongside an ES1.0
or ground stacked with the ES1.8.
ES1.0
part num. KVV 987 002
Compact Active-driven
Mid/Hi Module
Requires EPAK unit for control electronics and amplication.
9
ES1.5 · Overview

ES1.5 · Technology
Technology
The ES1.5 is an extremely compact yet high output bass module designed as part of an ES Series sound reinforcement speaker
system. The ES1.5 speaker system benets from being designed exclusively to operate below 150Hz. By optimizing the ideal
operating band pass of each system component; the ES1.5 can achieve high output levels consistently and safely.
Power for the system is provided by the EPAK unit Amplier/Controller ensuring fast, easy set up and complete control. Together
with the ES1.0 and EPAK 2500/R, they deliver the highest dynamic range of any system currently available providing new levels
of clarity, depth and resolution.
Advanced 15-inch driver
KV2 Audio's transducer partner, 18 Sound in Cavriago, Italy, manufactures the low frequency transducer inside the ES1.5.
Frequencies between 40Hz and 150Hz are reproduced by a new fteen-inch woofer that provides 99dB of sensitivity
(1watt / 1 meter). Loading of the woofer is done through two, asymmetrical chambers with horn-proled exits. The high
eciency neodymium motor provides an extraordinary amount of force that delivers complete control of the cone mass
and a high overall weight loss. Neodymium is not a transducer panacea, as it cannot safely operate at the same typical
operating temperatures of ferrite. Using neodymium requires a very profound understanding of material science and nite
element analysis. Our years of acoustic design experience enable us to properly design a stable, high force magnetic structure
using neodymium.
Easy-to-handle enclosure
The ES1.5 is a very lightweight yet resonance-free enclosure featuring a number of ergonomically designed parts that make
it compact and easy to set up and use. KV2 designed and tooled new cabinet handles for use in their products. The two side
handles make it easy to pick up and reposition the ES1.5 in a natural, instinctive manner.
Perfections in the details
One longstanding problem with standard cabinets is their rubber feet, which prevent you from moving or sliding the enclosure
easily into a desired position. They're also easily damaged since they protrude from the box. KV2 has addressed this issue by
molding our own feet using acetal copolymer material. This material has two very essential properties that make it ideal for use
in this application, high density and a very low coecient of friction. The enclosure has twelve of these feet placed on three
sides of the cabinet. Their asymmetrical placement allows easy setup, alignment and construction of a number of dierent
system congurations.
Easy to y
There are six industrial-grade internal braces placed at each corner. Each brace is held in place by four M6 and two M10 bolts
providing a wide range of installation and suspension exibility.
ES1.5 rear panel (cable connection to EPAK unit Amplier/Controller)
10
ES1.5 · Technology

ES1.5 · Specications
Specications
System Acoustic Perfomance
Max SPL Long-term 127dB (134dB - 3x ES1.5)
Max SPL Peak 130dB (137dB - 3x ES1.5)
-3dB Response 40Hz to 130Hz
-10dB Response 36Hz to 130Hz
Impedance 16Ω
Crossover Point 130Hz
Low Frequency Section
Acoustic Design Twin Asymmetrical loading
Subwoofer Amplier Requirement 500W / ES1.5 from EPAK 2500/R
Woofer Size / Voice Coil Diameter / Design 15" / 3" / Inside Outside
Diaphragm Material Epoxy Reinforced Cellulose
Magnet Type Ferrite
Speaker Input
Speaker Input AP4
Speaker Output
Speaker Output AP4
Cabinet
Cabinet Material Baltic birch
Handles 2
Color "Orange peeled" Matt Black or any RAL
Physical Dimensions
Height 700 mm (27.55")
Width 450 mm (17.71")
Depth 450 mm (17.71")
Weight 30.8 kg (67.9lbs)
11
ES1.5 · Specications

ES1.5 · Drawing
Drawing
ES1.5 Architects and Engineer's Specications
The bass module loudspeaker system shall incorporate one 15-inch low frequency (LF) transducer with neodymium motor.
The LF driver shall be mounted inside a compact wood enclosure in between twin asymmetrical acoustic chambers with horn
shaped exits tuned for optimum bass response. The loudspeaker enclosure shall have a rectangular shape and shall incorporate,
two side handles with integrated M10 points, one top and bottom M10 suspension point and integrated internal braces with
eight M10 suspension points, one M10 suspension point on the back. The speaker cabinet shall be nished with an ultra wear
resistant black polymer coating and tted with a weather resistant perforated steel grill. The system shall receive power from
a separate Amplier Controller module consisting of separate power ampliers for high, midrange and midbass transducers as
well as signal processing including electronic band pass crossover lters, phase alignment, time correction, equalization
and speaker protection. The speaker system shall connect to the Amplier/Controller Module via proprietary cables terminated
in Amphenol AP-4 connectors. The bass module shall be the KV2 Audio ES1.5.
12
ES1.5 · Drawing

ES1.5 · Accessories
Heavy duty cover for ES1.5
part name: Cover ES1.5
part number: KVV 987 120
Extended Joining Bracket
for ES1.0 or ES1.5 + ES1.8 or ES2.5
or ES2.6
part name: BRCKT-02
part number: KVV 987 046
- 4 pcs in pack
Short Join Bracket for joining
two ES Series cabinets
part name: BRCKT-001
part number: KVV 987 027
- 4 pcs in pack
Extended Joining Bracket
for 2 pcs ES1.0 or ES1.5
part name: LONG JOINING BRACKET
(BRCKT-003)
part number: KVV 987 026
- 4 pcs in pack
Fly Bar and Bracket for ES systems
part name: FLY BAR - 0002
part number: KVV 987 191
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
- 4 pcs Quick-lock-pins 1/2" included
ES Bass speaker cable LF15,
AP4 connectors - 1,5 m
part name: LF15
part number: KVV 987 121
- 1,5 m (5ft)
- for ES Bass Module daisy-chaining
ES Bass speaker cable LF40,
AP4 connectors - 4 m
part name: LF40
part number: KVV 987 122
- 4 m (13ft)
- for ES Bass Module hook-up
ES Bass speaker cable LF100,
AP4 connectors - 10 m
part name: LF100
part number: KVV 987 123
- 10 m (33ft)
- for ES Bass Module hook-up
ES Bass speaker cable LF200,
AP4 connectors - 20 m
part name: LF200
part number: KVV 987 124
- 20m (66ft)
- for ES Bass Module hook-up
Cart for 2 pcs ES1.0 or ES1.5
part name: CRT- 0001
part number: KVV 987 030
- wheels not included
Cart Wheels with bolts nuts kit
part name: CRT - WHL
part number: KVV 987 031
- 4 pcs in pack, (rotating), (blue)
Horizontal bracket
for ES1.0 or ES1.5
part name: ES1.0 Horizontal Bracket
part number: KVV 987 035
- including top hat cover adaptor
plate and two connection bolts
ES Cable kit
part name: CABLE-KIT
part number: KVV 987 047
The ES Cable Pack consist of four
high-quality Amphenol AP cable
assemblies designed
for use with ES Series.
- 2 pcs LF15
- 1pc LF40
- 1pc MH60
Amphenol AP4 cable-mount
female connector
part name: AP-4-11
part number: KVV 987 048
Amphenol AP4 cable-mount
male connector
part name: AP-4-12
part number: KVV 987 049
Aditional arms for FB-0002
part name: FLY BAR - 0002
part number: KVV 987 192
- 2 pcs ARMS OF FB-0002
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
13
ES1.5 · Accessories

ES1.8 · Overview
ES1.8 - part number KVV 987 004
High-Output / Active-driven
Bass Module
ES Modular Sound System Benets
Total exibility
Use two units coupled horizontally or vertically with single ES1.0 Mid /High Module.
Lightest-weight compact active SR system yet
All the benets of active sound reinforcement technology but with the electronics in a separate module.
Superb sound
Greater dynamic range than any previous active design.
Easy set-up
Ergonomic weight-balanced design with four handles, eight suspension points and "Integrating feet" for easy positioning
on stage. Plug-and-play connection to EPAK™ amp/processor module.
For full range systems, use with
the ES1.0 Three-way Mid/High Module
ES1.8 can also be combined
with this other ES Series Bass module:
ES1.5
part num. KVV 987 003
Single fteen-inch
compact Bass Module
EPAK2500
part name part num.
EPAK2500-115V KVV 987 001
EPAK2500-230V KVV 987 000
EPAK2500-250V KVV 987 134
EPAK2500R
part name part num.
EPAK2500R-115V KVV 987 062
EPAK2500R-230V KVV 987 061
EPAK2500R-250V KVV 987 112
Application
Specically designed to be used in pairs to accompany the ES1.0
as a true full range high output system for music playback and
live performance
• Large Bars and Nightclubs
• Concert venues
• Portable PA
• Scalable into larger systems
Introduction
The ES1.8 is a high-output, reex horn loaded, single 18" subwoofer,
designed as a part of the ES Series sound reinforcement system.
It provides tight, up front, low frequency extension with authority,
attack and denition. Designed to be used in pairs, or with up to
two ES1.5, the ES1.8 can achieve high output levels consistently and
safely. Alongside the ES1.0 and EPAK2500/R, ES1.8 oers a very rm
foundation on which to build a powerful ES system.
ES1.0
part num. KVV 987 002
Compact Active-driven
Mid/Hi Module
Requires EPAK unit for control electronics and amplication.
ES2.5
part num. KVV 987 005
Double fteen-inch
high-output Bass Module
14
ES1.8 · Overview

ES1.8 · Technology
Technology
The ES1.8 is a high-output, front-loaded single eighteen-inch bass module designed as a part of an ES Series sound reinforcement
speaker system. The ES1.8 was designed to provide tight, up-front, low frequency reinforcement. The front-loaded conguration
along with the use of large-format porting, provides improved attack and denition for the large format 18-inch woofer.
By optimizing the ideal operating band pass of each system component, the ES1.8 can achieve high output levels consistently
and safely. Power for the system is provided by the EPAK unit Amplier/Controller ensuring fast, easy set up and complete
control. Together with the ES1.0 and EPAK/R unit, they deliver the highest dynamic range of any system currently available
providing new levels of clarity, depth and resolution.
Advanced 18-inch driver
KV2 Audio's transducer development and manufacturing partner, 18 Sound in Cavriago, Italy, manufactures the woofer for
the ES1.8. The device is the result of their state-of-the-art R&D facility and advanced production capabilities. The transducer
features a double silicone spider, polymide voice coil assembly that undergoes multiple baking and curing processes as well as
an advanced magnetic structure with advanced cooling system.
Easy-to-handle enclosure
The ES1.8 is a very compact, lightweight enclosure featuring a number of ergonomically designed parts that make it an easy
speaker to set up and use. There are 4 side handles that make it easy to pick up and reposition the ES1.8 in a natural instinctive
manner.
Perfections in the details
One longstanding problem with standard cabinets is their rubber feet, which prevent you from moving or sliding the enclosure
easily into a desired position. They're also easily damaged since they protrude from the box. KV2 has addressed this issue by
molding our own feet using acetal copolymer material. This material has two very essential properties that make it ideal for use
in this application, high density and a very low coecient of friction. The enclosure has twelve of these feet placed on three
sides of the cabinet. Their asymmetrical placement allows easy setup, alignment and construction of a number of dierent
system congurations.
Easy to y
There are six industrial-grade internal braces placed at each corner and one brace on the back. Each brace is held in place by
four M6 and two M10 bolts providing a wide range of installation and suspension exibility.
ES1.8 rear panel (cable connection to EPAK unit Amplier/Controller)
15
ES1.8 · Technology

ES1.8 · Specications
Specications
System Acoustic Perfomance
Max SPL Long-term 131dB (136dB - 2x ES1.8)
Max SPL Peak 134dB (139dB - 2x ES1.8)
-3dB Response 37Hz to 130Hz
-10dB Response 33Hz to 130Hz
Impedance 8Ω
Crossover Point 130Hz
Low Frequency Section
Acoustic Design Horn reex loaded
Subwoofer Amplier Requirement 800W / ES1.8 from EPAK2500/R
Woofer Size / Voice Coil Diameter / Design 18" / 4" / Inside Outside
Diaphragm Material Epoxy Reinforced Cellulose
Magnet Type Ferrite
Speaker Input
Speaker Input AP4
Speaker Output
Speaker Output AP4
Cabinet
Cabinet Material Baltic birch
Handles 4
Pole Mount M20
Color "Orange peeled" Matt Black or any RAL
Physical Dimensions
Height 600 mm (23.62")
Width 700 mm (27.55")
Depth 750 mm (29.52")
Weight 52 kg (114.4lbs)
16
ES1.8 · Specications

ES1.8 · Drawing
Drawing
ES1.8 Architects and Engineer's Specications
The bass module loudspeaker system shall incorporate one 18-inch low frequency (LF) transducer with ferrite motor and 4-inch
polymide, high-termperature voice coil. The LF driver shall be mounted inside a compact wood enclosure with large-format
low-distortion reex ports. The loudspeaker enclosure shall have a rectangular shape and shall incorporate, four side handles
and integrated internal braces with twelve M10 suspension points. The speaker cabinet shall be nished with an ultra wear
resistant black polymer coating and tted with a weather resistant perforated steel grill. The system shall receive power from
a separate Amplifer/Controller module consisting of separate power ampliers for high, midrange and midbass transducers
as well as signal control including electronic band pass crossover lters, phase alignment, time corrections, equalization and
speaker protection. The speaker system shall connect to the Amplier/Controller Module via proprietary cables terminated in
Amphenol AP-4 connectors. The bass module shall be the KV2 Audio ES1.8.
17
ES1.8· Drawing

ES1.8 · Accessories
Heavy duty cover for ES1.8 used
without cart
part name: COVER ES1.8 WITHOUT CART
part number: KVV 987 115
Extended Joining Bracket
for ES1.0 or ES1.5 + ES1.8 or ES2.5
or ES2.6
part name: BRCKT-02
part number: KVV 987 046
- 4 pcs in pack
Heavy duty cover for ES1.8 used
with cart CRT - 0009
part name: COVER ES1.8 WITH CART
part number: KVV 987 116
Fly Bar and Bracket for ES systems
part name: FLY BAR - 0002
part number: KVV 987 191
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
- 4 pcs Quick-lock-pins 1/2" included
ES Bass speaker cable LF15,
AP4 connectors - 1,5 m
part name: LF15
part number: KVV 987 121
- 1,5 m (5ft)
- for ES Bass Module daisy-chaining
ES Bass speaker cable LF40,
AP4 connectors - 4 m
part name: LF40
part number: KVV 987 122
- 4 m (13ft)
- for ES Bass Module hook-up
ES Bass speaker cable LF100,
AP4 connectors - 10 m
part name: LF100
part number: KVV 987 123
- 10 m (33ft)
- for ES Bass Module hook-up
ES Bass speaker cable LF200,
AP4 connectors - 20 m
part name: LF200
part number: KVV 987 124
- 20 m (66ft)
- for ES Bass Module hook-up
Front mount magnetic cart
for ES1.8, ES2.5, ES2.6, EX2.5 MkII
part name: CRT- 0009
part number: KVV 987 114
- wheels not included
Cart Wheels with bolts nuts kit
part name: CRT 0009 - WHL KIT
part number: WHL - KVV 987 128
- 4 pcs in pack, (rotating), (blue)
Heavy duty telescopic speaker
pole for ES/EX series
part name: KV2-H
part number: KVV 987 130
ES Cable kit
part name: CABLE-KIT
part number: KVV 987 047
The ES Cable Pack consist of four
high-quality Amphenol AP cable
assemblies designed
for use with ES Series.
- 2 pcs LF15
- 1pc LF40
- 1pc MH60
Amphenol AP4 cable-mount
female connector
part name: AP-4-11
part number: KVV 987 048
Amphenol AP4 cable-mount
male connector
part name: AP-4-12
part number: KVV 987 049
Aditional arms for FB-0002
part name: FLY BAR - 0002
part number: KVV 987 192
- 2 pcs ARMS OF FB-0002
- 8 pcs M10 screws
- 8 pcs Quick-lock-pins 6 mm included
18
ES1.8 · Accessories

ES2.5 / ES2.6 · Overview
ES2.5 - part number KVV 987 005
ES2.6 - part number KVV 987 150
High-Output
Active-driven
Bass Module
ES Modular Sound System Benets
Total exibility
Use one ES2.5 module or two ES2.6 modules to accompany a single ES1.0 Mid/High module. These can be placed vertically
or horizontally.
Lightest-weight compact active SR system yet
All the benets of active sound reinforcement technology but with the electronics in a seperate module.
Superb sound
Greater dynamic range than any previous active design.
Easy set-up
Ergonomic weight-balanced design with four handles, eight suspension points and "Integrating feet" for easy positioning
on stage. Plug-and-play connection to EPAK™ amp/processor module.
For full range systems, use with
the ES1.0 Three-way Mid/High Module
ES2.5/2.6 can also be combined
with this other ES Series Bass module:
ES1.5
part num. KVV 987 003
Single fteen-inch
compact Bass Module
EPAK2500
part name part num.
EPAK2500-115V KVV 987 001
EPAK2500-230V KVV 987 000
EPAK2500-250V KVV 987 134
EPAK2500R
part name part num.
EPAK2500R-115V KVV 987 062
EPAK2500R-230V KVV 987 061
EPAK2500R-250V KVV 987 112
Application
Live performance and recorded playback for venues up to 2000
persons (depending on program material and number of bass
modules used):
• Church sanctuaries
• Auditoriums
• Band PA
• Dance clubs
• Mobile DJ
• Corporate events
Introduction
The ES2.5 & 2.6 is a high output, -double 15" Bass Module of medium
dimensions, weight and footprint. Designed to accompany the
ES1.0 Mid/High Module as a system, the extreme output and high
quality performance present exible adaptability and scaleability
for varied applications.
ES1.0
part num. KVV 987 002
Compact Active-driven
Mid/Hi Module
Requires EPAK unit for control electronics and amplication.
ES1.8
part num. KVV 987 004
Single eighteen-inch
high-output Bass Module
19
ES2.5 / ES2.6 · Overview

ES2.5 / ES2.6 · Technology
Technology
The ES2.5 and ES2.6 are a compact, high output bass module designed as a component of an ES Series sound reinforcement
speaker system. The ES2.5 and ES2.6 were designed using new concepts in twin asymmetrical acoustic chambers that deliver
very high speaker loading and output from a relatively small cabinet footprint. It is ideal for use in live applications that require
reproduction of low frequencies with very high transient content.
Part of the matched, modular EPAK™ System
Power for the system is provided by the EPAK amplication and control system from KV2 Audio ensuring fast, easy set up and
complete control. Together with an ES Series Mid/High module and an EPAK system, they deliver the highest dynamic range
of any system currently available providing new levels of clarity, depth and resolution.
Durable, high-output low frequency transducers
KV2 Audio's transducer development and manufacturing partner, 18 Sound in Cavriago, Italy, manufactures the woofer for the
ES2.5 and ES2.6. The device is the result of their state-of-theart R&D facility and advanced production capabilities.
The transducer features a double silicone spider, polymide voice coil assembly that undergoes multiple baking and curing
processes as well as an advanced magnetic structure with advanced cooling system.
Built with load-in and load-out in mind
The ES2.5 and ES2.6 are a very compact, lightweight enclosure featuring a number of ergonomically designed parts that make
it an easy speaker to set up and use. KV2 designed and tooled new cabinet handles for use in their products. The four side
handles make it easy to pick up and reposition the ES2.5 and ES2.6 in a natural, instinctive manner.
Perfections in the details
One longstanding problem eith standard cabinets is their rubber feet, which prevent you from moving or sliding the enclosure
easily into a desired position. They're also easily damaged since they protrude from the box. KV2 has addressed this issue by
molding our own feet using acetal copolymer material. This material has two very essential properties that make it ideal for use
in this application, high density and a very low coecient of friction. The enclosure has eight of these feet placed on two sides
of the cabinet. Their asymmetrical placement allows easy setup, alignment and construction of a number of dierent system
congurations.
Easy to y
There are six industrial grade, internal braces placed at each corner. Each brace is held in place by four M6 and two M10 bolts
providing a wide range of installation and suspension exibility.
ES2.6 rear panel (cable connection to EPAK unit Amplier/Controller)
ES2.5 rear panel (cable connection to EPAK unit Amplier/Controller)
20
ES2.5 / ES2.6 · Technology