SL Series User Guide
SL Series
User Guide
s SL3000
s SL412
s SL2.15
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.
Contents
SL series
Introduction
4
Overview
Getting started
Features - Front panel
Features - Rear panel
Using the system - Full Range
Using the system - Subwoofers
Specifications
Block diagram
5
6
7
8
9
10
11
12
Overview
Technology
Specifications
Frequency characteristics
SL412 - Drawing
SL412i - Drawing
13
14
15
16
17
18
Overview
Technology
Specifications
SL2.15 - Drawing
SL2.15i - Drawing
19
20
21
22
23
Accessories
Configurations
24
25
SL series
SL3000
SL412, SL412i
Contents
SL2.15, SL2.15i
SL series
3
Introduction
SL series
Thank you for purchasing this KV2 Audio, SL series system, consisting of the SL3000 stereo controller/amplifier
unit, two SL412 speakers and optional variants of subwoofers.
The new SL412 and SL2.15 speakers incorporate an eye catching, slim, stylish cabinet design. Designed to
integrate either externally through simple wall mounting, suspension, ground stacking, or internally into walls
and surfaces. These units can be designed and supplied with custom colors, grill templates and logos, offering
a flexible and true designer integration product. Using KV2 Super Live Audio technology, the SL412 loudspeaker utilizes 4 x 12” low mid-range components and the proven and highly respected horn assembly from the
VHD1.0 with a single 8” mid-range and 3” large format NPVD compression driver. This mid-high horn has an
extremely coherent-wide horizontal dispersion of over 110 degrees whilst the purpose designed 4 x 12” configuration dramatically reduces the most common problem of immediate reflections within the 300÷800Hz
range usually associated with wide dispersion loudspeakers. The end result is a full and wide sound propagation exactly where it is required. Whilst the SL412 can be utilized with any of KV2’s wide range of sub woofer
systems depending on the actual application, the accompanying SL2.15 utilizes the same slim line design to
allow for an aesthetically pleasing and acoustically punchy system that can virtually disappear against a wall.
The SL2.15 incorporates 2 x 15” speakers in a specially designed shallow cabinet to output maximum bass
response.
The SL412i & SL2.15i are exact identical performance and finish units of the existing SL412 & SL2.15, except they
do not incorporate the fixed handles for touring and presentation use.
The ‘I’ version is designated for fixed installation use with the same existing mounting and flyware fixings.
This manual contains important information on operating the SL system correctly and safely. Please take some
time and read this manual to familiarize yourself with the advanced features of this system.
The SL3000 Amplifier is a three-way, active control and amplification systems, specifically designed for the KV2
Audio SL series loudspeaker systems. It houses all signal processing and amplification as well as providing
control for external subwoofer cabinets configurations, and to operate additional subwoofer cabinets if
needed. External subwoofers are powered by the external subwoofer amplifier (VHD3200).
The amplifier compliment and configuration inside the SL3000 Amplifier 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.
Introduction
Low Frequency - 1000-watt, High-efficiency, Current-enhancing switch mode technology with Linear Active Filter.
In most cases it would be advisable to use a KV2 Audio Line driver (LD4) in addition at the mixer end to ensure
that the line to the amplifier is driven correctly and the signal integrity maintained.
Although this system is simple to operate, improper use can be dangerous. This is a very high-powered device
that can put out high voltages and sizeable currents. Always use safe operating techniques with the SL series
system.
FOR YOUR SAFETY, READ THE IMPORTANT PRECAUTIONS SECTION AS WELL AS THE INPUT, OUTPUT
AND POWER CONNECTION SECTIONS OF THIS MANUAL.
Warranty
Your SL System is Warrantied against defects in material and workmanship. Please refer to your supplier for more warranty
details.
Service
WARNING! Electronic components, risk of SHOCK!
In the unlikely event that your product requires service, it must be returned to an authorized KV2 Audio distributor, service
centre or shipped directly to the factory.
All warranty and service repairs must be undertaken by qualified technical personnel.
If the unit/s need to be shipped back to the factory, we advise using the original packing to reduce the risk of damage in
transit.
Please contact your nearest KV2 Audio centre for service details. Distributors list can be found at www.kv2audio.com.
4
Overview
Features
s The SL3000 Amplifier is a stereo,
three-way, active control and
amplification system specifically
designed for the KV2 Audio SL
Series modular loudspeaker
systems.
s It houses all signal processing
and amplification as well as
providing control for external
subwoofers cabinet configurations
to run further subwoofer cabinets,
if needed.
SL2.15
- part num. KVV 987 274
Double 15-inch
SL Subwoofer
VHD4.18
- part num. KVV 987 079
Single 18-inch Ultra low
frequency subwoofer
- High Frequency - 100-watt,
Class AB, push pull,
low intermodulation design
- Mid Frequency - 200-watt,
Class AB, push pull,
low intermodulation design
- Bass - 1000-watt, high-efficiency,
current-enhancing switch mode
technology with Linear Active
Filter
s External subwoofer is powered
by the external subwoofer amplifier
(VHD3200).
SL3000 - 250V part number: KVV 987 280
SL3000 - 230V part number: KVV 987 279
SL3000 - 115V part number: KVV 987 278
For full range systems, use one, or
a combination of, the following
Bass Modules:
s The amplifier compliment inside
the SL3000 Amplier is as follows:
SL3000
SL3000 Amplifier
Rack mounted
Unpacking
Amplifier rack mounting
Unpack the SL3000 Amplifier 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.
The SL3000 Amplifier 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
amplifier using just the front panel as
support. Use eight screws and
washers to mount the amplifier to the
equipment rack rails. We recommend
using a shock mounted rack for
touring use to prolong the life of your
amplifier.
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.
For running subwoofers use
VHD3200 Amplifier.
(Two SL2.15 speakers requires
one channel of the two channel
VHD3200 subwoofer amplifier
unit.)
The SL3000 Amplifier carton should
contain:
t4-"NQMJöFSDPOUSPMVOJU
t6TFSHVJEF
t5XP1PXFS$POEFUBDIBCMFQPXFS
cables
FRONT PANEL
481,4 mm
LIMITER
SIGNAL PRESENT
177 mm
- part num. KVV 987 249
Double 21-inch Ultra low
frequency subwoofer
Overview
VHD2.21
POWER ON /
THERMAL (AUTO RESET)
SL3000
VHD3200-250V KVV 987 176
VHD3200-230V KVV 987 083
VHD3200-115V KVV 987 084
REAR PANEL
431,8 mm
MAIN
*/165
THROUGHT OUT
SL3000
SUB OUT
177 mm
FULL RANGE
WARNING
OFF
ON
)*()70-5"(&%0/053&.07&5)*41"/&-
SUB LEVEL
CAUTION
8"3/*/(3*4,0'&-&$53*$4)0$,%0/0501&/
AVIS: RISQUE DE CHOC ELECTRIQUE NE 1AS OUVRIR
SUB OUT
MONO
OFF
ON
46#4&561
18"
21"
MAIN
*/165
THROUGHT OUT
AC IN B
AC IN A
WARNING:
WWW.KV2AUDIO.COM
DESIGNED BY KV2 AUDIO
."/6'"$563&%*/5)&&6301&"/6/*0/
50&/463&1301&301&3"5*0/"--08".*/*.6.0'*/4
OF CLEARANCE FROM THIS SURFACE AND ADEQUATE VENTILATION.
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THIS
1"/&-03"/:"55"$)&%$0.10/&/5/001&3"5034&37*$&%"#-&
1"354*/4*%&3&'&34&37*$*/(5026"-*'*&%1&340//&-503&%6$&
5)&3*4,0''*3&03&-&$53*$4)0$,%0/05&9104&5)*4"11-*"/$&
TO RAIN OR MOISTURE.
SERIAL NUMBER
5
Getting started
Cooling
SL3000
The SL3000 Amplifier have 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 amplifer by the two fans on the rear panel, this passes over the cooling fans 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 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.
NOTE: The filters at the top and bottom of the front panel must be kept clean and free of dust and dirt to allow full
operation-CHECK PERIODICALLY
AC Requirements
Two PowerCon cables are provided to connect the SL3000 Amplifier to a suitable AC power supplies. Each cable powers
each separate amplifier channel for sufficient current delivery.
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.
Getting started
Your amplifier will be supplied preset to the voltage used in your area. The table below provides typical current draw
figures for the SL3000 Amplifier.
6
AC Input
Current draw with amplifier running at
Average Power (Each Channel)
Current draw with amplifier running at
Peak Power (Each Channel)
250V
230V
115V
3.2A
3.5A
7A
5A
5.4A
11A
Current draw of SL3000 Amplifier
Features
Front panel
2
3
4
SL3000
1
LIMITER
SIGNAL PRESENT
POWER ON /
THERMAL (AUTO RESET)
SL3000
1) AC Mains Switch
The SL3000 Amplifier has a combination AC Main 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) LIMITER
Red LED, indicates that the audio limiter has been activated. This RMS limiter protects speakers against overload.
3) POWER ON/ THERMAL (AUTO RESET)
Green LED indicates that the AC power is on. When red, it indicates that the thermal limit of the SL3000 Amplifier
has been exceeded and the unit has shut down.
Features
3) SIGNAL PRESENT
Green LED indicates when audio signal is present at the amplifier input.
7
Features
Rear panel
1
SL3000
MAIN
INPUT
2 3
4
6
5
8
7
THROUGHT OUT
SL3000
SUB OUT
FULL RANGE
WARNING
OFF
ON
HIGH VOLTAGE: DO NOT REMOVE THIS PANEL
SUB LEVEL
CAUTION
WARNING: RISK OF ELECTRIC SHOCK DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
SUB OUT
MONO
OFF
ON
MAIN
INPUT
THROUGHT OUT
AC IN B
AC IN A
WARNING:
WWW.KV2AUDIO.COM
DESIGNED BY KV2 AUDIO
MANUFACTURED IN THE EUROPEAN UNION
TO ENSURE PROPER OPERATION ALLOW A MINIMUM OF 6 INS.
OF 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 SERVICED ABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. TO REDUCE
THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
SERIAL NUMBER
1) MAIN INPUT / TROUGHT OUT
This is the main system input balanced XLR connector with associated Through Signal Output connector for
sending unprocessed signal to other devices in a system.
2) SUB OUT
Balanced XLR output connector, used to connect additional subwoofer. Output is active even when FULL RANGE
switch is ON.
3) FULL RANGE
Switch, selects the amplifier crossover setup, when ON full range signal is reproduced by Classic cabinets, when
OFF signal is by frequency band in conjunction with the subwoofer output setup.
4) SUB LEVEL
This is the level control for the External Sub output in the range -6 to +6 dB.
Features
5) MONO
Switch, sets SUB OUT outputs summing SUB OUT outputs channel A and B together.
6) PowerCon Power Connectors
The SL3000 Amplifier uses two connectors per two channel. Each connector supplies one channel. They accept
standard PowerCon terminated AC Mains cables.
7) Fans
The cooling fans operate continuously while the amplifier 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 SL3000 Amplifier is mounted.
8) Speaker EP6 Connectors
Accepts a standard EP6 terminated loudspeaker cable for connecting up to a single SL412 cabinet. We recommend using 2.5mm/core cables.
8
Using the system
SL412
SL412
SPEAKER A
SPEAKER B
SL3000
Full range setup
Full Range
Output B
Full Range
Output A
Main Signal
Input A
MAIN
INPUT
THROUGHT OUT
CLASSIC
SUB OUT
FULL RANGE
WARNING
OFF
ON
HIGH VOLTAGE: DO NOT REMOVE THIS PANEL
SUB LEVEL
CAUTION
WARNING: RISK OF ELECTRIC SHOCK DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
SUB OUT
Main Signal
Input B
MONO
OFF
ON
MAIN
INPUT
THROUGHT OUT
AC IN B
AC IN A
WARNING:
WWW.KV2AUDIO.COM
DESIGNED BY KV2 AUDIO
MANUFACTURED IN THE EUROPEAN UNION
TO ENSURE PROPER OPERATION ALLOW A MINIMUM OF 6 INS.
OF 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 SERVICED ABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. TO REDUCE
THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
SERIAL NUMBER
Using the system
FULL RANGE
OFF
ON
Set SL3000 Amplifier to FULL RANGE ON mode. SL412 cabinets plays full range signal.
9
Using the system
External subwoofer setup
SL412 SPEAKER B
SL3000
SL412 SPEAKER A
Mid/Hi
Output B
Mid/Hi
Output A
SL2.15
SL2.15
SL2.15
SL2.15
Sub
Output A
Sub
Output B
FULL RANGE
Using the system
OFF
ON
Main Signal
Input A
MAIN
INPUT
THROUGHT OUT
SL3000
SUB OUT
FULL RANGE
WARNING
OFF
ON
HIGH VOLTAGE: DO NOT REMOVE THIS PANEL
SUB LEVEL
CAUTION
WARNING: RISK OF ELECTRIC SHOCK DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
SUB OUT
Main Signal
Input B
MONO
OFF
ON
MAIN
INPUT
THROUGHT OUT
AC IN B
AC IN A
WARNING:
TO ENSURE PROPER OPERATION ALLOW A MINIMUM OF 6 INS.
OF 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 SERVICED ABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. TO REDUCE
THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
WWW.KV2AUDIO.COM
DESIGNED BY KV2 AUDIO
MANUFACTURED IN THE EUROPEAN UNION
SERIAL NUMBER
OUTPUT A
1600W / 4
INPUT A
WARNING
HIGH VOLTAGE: DO NOT REMOVE THIS PANEL
BRIDGE - INPUT A
ON
BRIDGE
CAUTION
3200W / 8
OFF
WARNING: RISK OF ELECTRIC SHOCK DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
INPUT B
AC IN B
OUTPUT B
AC IN A
1600W / 4
SERIAL NUMBER
WWW.KV2AUDIO.COM
DESIGNED BY KV2 AUDIO
MANUFACTURED IN THE EUROPEAN UNION
Set SL3000 Amplifier to FULL RANGE OFF mode. Signal is crossed over at Hi/Mid for SL412 cabinets and
SUB for external subwoofer.
SUB SET UP LEVEL setting depends on which subwoofer unit is used.
10
Specifications
Rated Continuous Power
Distortion
Operating Bandwidth
Mid Frequency Amplifier Specification
Type
Class AB - Push Pull - Low IM Design
Transformer balanced output
100W
<0.02%
400Hz ÷ 2,5kHz
Rated Continuous Power
Distortion
Operating Bandwidth
Class AB - Push Pull - Low IM Design
Transformer balanced output
200W
<0.02%
400Hz ÷ 2,5kHz
Low Frequency Amplifier Specification
Type
Rated Continuous Power
Distortion
Operating Bandwidth
High efficiency, Current-enhancing switch mode
1000W
<0.02%
35Hz ÷ 400Hz
Signal Input
Input Sensitivity
Input Impedance
1V RMS
20kΩ (balanced)
Speaker Output
Speaker Output
2x EP6
Power
Power Connector
Operating Voltage
Operating Voltage Range
Recommended Amperage
2x Neutrik PowerCon®
115V / 230V / 250V
100÷[email protected] | 205÷[email protected] | 225÷[email protected]
2x10A 115V | 2x5A 230V | 2x5A 250V
Physical Dimensions
Height
Width
Depth
Weight
177.8mm (7.0"), 4RU
483mm (19.0")
495mm (19.5")
39.2kg (86.62lbs)
SL3000
High Frequency Amplifier Specification
Type
2 (stereo)
2x 1300W
Specifications
Output Channels
Number of Channels
Total Output Power
11
12
MAIN
AC IN
MAIN
INPUT
POWER SUPPLY
POWER ON
THROUGH
SIGNAL OUT
SUB - CHANNEL B
FULL RANGE
OFF
ON
CONTROL
PRE, EQ
SIGNAL
PRESENT
Block diagram
THERMAL / AUTO RESET
MONO
OFF
ON
CONTROL
SUB
SIGNAL
MANAGEMENT
CONTROL
UNIT
PROTECTION
LIMITER
EXT SUB LEVEL
± 6 dB
MIDLOW
10 Hz - 500 Hz
1000 W
MIDHI
500 Hz - 2,5 kHz
200 W
HI
2,5 kHz - 40 kHz
100 W
SUB OUT
OUTPUT
SL3000
Block diagram
SL3000 block diagram
Channel A, channel B is identical
SL412, SL412i
Wide dispersion
Active-driven Speaker
Description
Slim-line Sound System Benefits
The SL412 is an exceptionally flat
frequency response and Very High
Definition sound system. Emphasizes
every detail and nuance of a performance and transfers the atmosphere
to each and every audience member.
Max. Wide dispersion, Slim, discreetly
profiled wall mount cabinet
Total flexibility
The requirement for truly ‘environment integrated’ enclosures is always
a difficult prospect, with large, or
often deep enclosures protruding
into and breaking up sight lines.
Requests are often received from
both architects and interior designers
for less obtrusive units, whilst
providing the highest integrity in
sound quality, output and coverage.
SL412 Applications
s Live music applications
s Professional portable PA Systems
for large format AV, speech and
multimedia playback
s Professional DJ loudspeaker
systems
Superb sound
KV2 Audio Slim-line system uses
Super Live Audio technology with
greater dynamic range than any
current similar solution.
SL412i Applications
s Very high quality fixed installations
Easy set-up
Plug-and-play connection to SL3000
amp/processor module.
Slim, discreetly profiled, wall mount
design. Cabinet features twohandles,
eight suspension points and “integral
feet” for easy positioning on stage.
SL412 part number: KVV 987 273
SL412i part number: KVV 987 287
One SL3000 control and
amplification unit runs stereo
SL412 speaker system.
SL3000-115V
SL3000-230V
SL3000-250V
KVV 987 280
KVV 987 279
KVV 987 278
Features
s High-output, slim, discreetly
profiled Mid/High wall mount
cabinet
s 134dB sustained output,
SL412
Overview
s Proprietary midrange heat
dissipation system controls
voice coil temperature, ensures
high dynamics and extends
transducer lifespan
137dB peak
For full range systems, use one, or
a combination of, the following
Bass Modules:
frequencies, controlled at
low-mids to reduce indoor
reflections
s Professional, exterior-grade
SL2.15
- part num. KVV 987 274
s Mid/High horn design provi-
Double 15-inch
SL Subwoofer
des optimized transducer
loading and controlled dispersion
VHD4.18
s Patent-Pending 3” diaphragm
- part num. KVV 987 079
nitride-titanium compression
driver with complex geometry
phase plug for higher output
and lower distortion performance and neodymium
Single 18-inch Ultra low
frequency subwoofer
VHD2.21
- part num. KVV 987 249
Double 21-inch Ultra low
frequency subwoofer
mid-bass drivers with 3.00”
voice coil assembly and neodymium magnetic motor structure
s Eight-inch midrange driver
with 3.0”, Trans Coil, neodymium magnetic motor structure
for increased control and output
and decreased distortion and
weight
Baltic birch construction with
wear-resistant polymer coating
Proprietary corner and side
handle designs for simplified
handling and carrying
Overview
s Front-loaded, 4x twelve-inch
s Wide dispersion at high
s Four internal corner and one
back brace with nine M10
suspension points.
A total of 27 suspension points
are available for custom installation applications
s Two SL412 speakers requires
one SL3000 amplifier unit
13
SL412
Technology
The SL412 is a 3-way high output,
active-driven, wide dispersion
loudspeaker module. It is designed
as part of a sound reinforcement
speaker system that includes the
SL3000 system control and amplification system.
The SL412 Loudspeaker system
benefits from being designed
exclusively to operate above 60 Hz.
By optimizing the ideal operating
band pass of each system component, the SL412 can achieve
extremely high output levels
consistently and safely.
Technology
Active-driven by the SL3000 unit
Power, electronic crossovers,
phase alignment, equalization, time
correction and speaker protection
are provided within the SL3000 unit.
This “one plug in, one-plug-out”
system ensures fast, easy set up and
complete control. It gives you the
benefits of active sound reinforcement technology, yet locates the
electronics in an easy-access
rackmount module.
Together, the SL412 and
SL3000 unit 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 SL412
components. The compression
driver is a 3-inch nitride-titanium
diaphragm design, featuring a
complex geometry phase plug that
dramatically lowers distortion,
eliminates ring modes and provides
clearer, ripple free performance.
Mid/High horn design
The SL412 features a mid/high
integrated horn design with a
number of unique features. The
horn design is based on constant
directivity geometry with an
emphasis on maintaining low
transducer compression ratios, high
output and wide dispersion (110° x
40°). The midrange speaker is fixed
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 precision phase plug.
Heat-resistant midrange
Midrange requencies between
450Hz and 2.2kHz are reproduced
by an eight-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
Trans Coil 3” diameter voice coil
assembly and extensive use of
neodymium. Because of the limited
linear movement of most midrange
transducers - usually 2-3mm ventilation of the voice coil assembly and magnetic structure is poor
and failure rate from heat fatigue is
high. The SL412 midrange dissipates heat passively through the use
of a massive aluminum heat sink.
When combined with the SL3000
amplifier unit control electronics,
the system provides high output
levels safely and consistently over
infinite periods of time and dramatically reducing heat associated
transducer problems such as power
compression and decreased
dynamics.
Neodymium mid-bass transducer
The SL412 features a four
twelve-inch neodymium mid-bass
speakers with front loaded bass
reflex 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 finite element analysis to
properly design a stable, high force
magnetic structure that functions
correctly. 18 Sound and KV2 audio
engineering jointly designed the
twelve-inch mid-bass driver for the
SL412.
The SL412 mid-bass transducers
reproduces frequencies from 60Hz
to 450Hz. Used mid-bass transducers are very precise and fast with
high sensitivity. The high efficiency
neodymium motor provides an
extraordinary amount of force that
delivers complete control of the
cone mass and a high overall weight
loss.
Easy to set up
The SL412 is the ultimate, nice
looking 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 SL412 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
flexibility.
SL412 rear panel (cable connection to SL3000 unit Amplifier/Controller)
14
134dB
137dB
70Hz ÷ 22kHz
58Hz ÷ 22kHz
High Frequency Section
Acoustic Design
High Horn Coverage Horizontal / Vertical
Rotatable Horn
High Frequency Amplifier Requirement
Throat Exit Diameter / Diaphragm Size
Diaphragm Material
Magnet Type
Horn Loaded
110° x 40°
NO
100W
1.4" / 3"
Nitride Titanium
Neodymium
Mid Range Section
Acoustic Design
Mid Horn Coverage Horizontal / Vertical
Rotatable Horn
Midrange Amplifier Requirement
Woofer Size / Voice Coil Diameter / Design
Diaphragm Material
Magnet Type
Horn Loaded
110° x 40°
NO
200W
8" / 3.0" / Trans Coil
Epoxy Reinforced Cellulose
Neodymium
Low Frequency Section
Acoustic Design
Subwoofer Amplifier Requirement
Number of Drivers
Woofer Size / Voice Coil Diameter / Design
Magnet Type
Front Loaded, Bass Reflex
1000W
4
12" / 3" / Inside outside
Neodymium and Ferrite
Speaker Input
Speaker Input
EP6
Speaker Output
Speaker Output
-
Cabinet
Cabinet Material
Handles
Flyware
Color
Baltic birch
2
20x M10 mounting points
"Orange peeled" Matt Black or any RAL
Physical Dimensions
Height
Width
Depth
Weight
689mm (26.37")
1080mm (42.52")
300mm (11.81")
60kg (132.28lbs)
Specifications
System Acoustic Perfomance
Max SPL Long-term
Max SPL Peak
-3dB Response
-10dB Response
SL412
Specifications
15
Frequency characteristics
Frequency characteristics
SL412
Frequency response
16
Drawing
SL412
Drawing
SL412 Architects and Engineer’s
Specifications
The three-way, mid / high loudspeaker system shall incorporate four
12-inch mid-bass (MB) transducer a
8-inch mid range (MR) speaker and
a 1.4-inch exit compression driver
high frequency (HF) transducer. The
LF drivers are direct radiating, tuned
for optimum mid-bass response.
The HF and MR transducers shall be
loaded in constant directivity
mid/high horn assembly.
The system has a nominal coverage
pattern of 110° (horizontal) x 40°
(vertical).
The loudspeaker enclosure shall
have a slim shape and shall incorporate, two side handles with integrated M10 suspension points, integrated internal braces with total 18
M10 suspension points.
The speaker cabinet shall be
finished with an ultra wear resistant
black polymer coating and fitted
with a weather resistant perforated
steel grill.
The system shall receive power
from a separate stereo Amplifer
SL3000.
Amplifier and controller module
SL3000 consisting of separate
power amplifiers for high, midrange and midbass transducers as
well as signal processing including
electronic band pass crossovers,
limiters, phase alignment, time
correction, equalization and
speaker protection.
The speaker system shall connect
to the SL3000 via proprietary
cables terminated in Amphenol
AP-6 connectors. The three-way
mid / high loudspeaker system
shall be the KV2 Audio SL412.
17
Drawing
SL412i
Drawing
SL412 Architects and Engineer’s
Specifications
The three-way, mid / high loudspeaker system shall incorporate four
12-inch mid-bass (MB) transducer a
8-inch mid range (MR) speaker and
a 1.4-inch exit compression driver
high frequency (HF) transducer. The
LF drivers are direct radiating, tuned
for optimum mid-bass response.
The HF and MR transducers shall be
loaded in constant directivity
mid/high horn assembly.
The system has a nominal coverage
pattern of 110° (horizontal) x 40°
(vertical).
18
The loudspeaker enclosure shall
have a slim shape and shall incorporate, two side handles with integrated M10 suspension points, four
integrated internal braces with
eight M10 suspension points, two
M10 suspension point on the back.
The speaker cabinet shall be
finished with an ultra wear resistant
black polymer coating and fitted
with a weather resistant perforated
steel grill. The system shall receive
power from a separate stereo
Amplifier SL3000.
Amplifier and controller module
SL3000 consisting of separate
power amplifiers for high, midrange and midbass transducers as
well as signal processing including
electronic band pass crossover
filters, phase alignment, time
correction, equalization and
speaker protection.
The speaker system shall connect
to the SL3000 via proprietary
cables terminated in Amphenol
AP-6 connectors. The three-way
mid / high loudspeaker system
shall be the KV2 Audio SL412.
Description
Slim-line Sound System Benefits
The SL2.15 (8 ohm) is double 15”
subwoofer. Acoustical design is based
on direct radiation system with bass
reflex.
The speakers cabinets can be easily
stacked close to the wall and combined arbitrarily with SL412 Mid-Hi
enclosure.
It also functions as a very effective
upper bass cabinet when used
alongside the Ultra Low Frequency
VHD1.21 subwoofers as part of a five
way active system.
Total flexibility
The requirement for truly ‘environment integrated’ enclosures is always
a difficult prospect, with large, or
often deep enclosures protruding
into and breaking up sight lines.
Requests are often received from
both architects and interior designers
for less obtrusive units, whilst
providing the highest integrity in
sound quality, output and coverage.
SL2.15 Applications
s Live music applications
s Professional portable PA Systems
for large format AV, speech and
multimedia playback
s Professional DJ loudspeaker
systems
SL2.15 part number: KVV 987 274
SL2.15i Applications
SL2.15i part number: KVV 987 298
s Very high quality fixed installations
Two SL4.15 speakers requires one
channel of two channel VHD3200
subwoofer amplifier unit
s Slim, discreetly profiled wall
VHD3200-250V KVV 987 176
VHD3200-230V KVV 987 083
VHD3200-115V KVV 987 084
For full range systems, use one, or
a combination of, the following
Bass Modules:
SL2.15
- part num. KVV 987 274
Double 15-inch
SL Subwoofer
VHD4.18
- part num. KVV 987 079
Single 18-inch Ultra low
frequency subwoofer
Superb sound
KV2 Audio Slim-line system uses
Super Live Audio technology with
greater dynamic range than any
current similar solution.
Easy set-up
Plug-and-play connection to SL3000
amp/processor module.
Slim, discreetly profiled, wall mount
design. Cabinet features twohandles,
eight suspension points and “integrating feet” for easy positioning on
stage.
s Professional, exterior-grade
peak with very high dynamic range
Baltic birch construction with
wear-resistant polymer coating
Proprietary side handle designs
for simplified handling and
carrying
s Simple wall mounting, suspensi-
s Internal corner and back
mount cabinet
s 129dB sustained output, 132dB
on, ground stacking, or internally
into walls and surfaces
s These units can be designed and
supplied with custom colors, grill
templates and logos, offering a
flexible and true designer integration product
s Front-loaded, 2x 15-inch bass
drivers with 3.00” voice coil
assembly and ferrite magnetic
motor structure
brace with M10 suspension
points.
A total of 20 suspension points
are available for custom installation applications
s Two SL2.15 speakers requires
one channel of two channel
VHD3200 subwoofer amplifier
unit
Overview
SL2.15, SL2.15i
Bass Enclosure
SL215
Overview
VHD2.21
- part num. KVV 987 249
Double 21-inch Ultra low
frequency subwoofer
19
The SL2.15 is a compact, slim
cabinet, high output bass module
designed as a component of an SL
Series sound reinforcement speaker
system.
The SL2.15 was designed as a
direct radiation system with bass
reflex, this system provides high
output power from a relatively small
and very shallow cabinet footprint.
It is ideal for use in installation
applications that require reproduction of low frequencies with very
high transient content and where is
no space for large subwoofers
cabinets.
Durable, high-output low
frequency transducers
KV2 Audio’s transducer development and manufacturing partner,
18 Sound in Cavriago, Italy, manufactures the woofer for the SL2.15.
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.
Fast and easy setup
Power for the SL subwoofer
system is provided from external
amplifier VHD3200, as a crossover
and control system us used SL3000
Amplifier from KV2 Audio ensuring
fast, easy set up and complete
control. Together with an SL Series
Mid/High module and an SL3000
system, they deliver the highest
dynamic range of any system
currently available providing new
levels of clarity, depth and resolution.
Built with load-in and load-out in
mind
The SL2.15 is a very compact,
slim, lightweight enclosure featuring a number of ergonomically
designed parts that make it an easy
speaker install and use.
SL2.15 uses cabinet handles
designed and tooled by KV2 for use
in their products. The two side
handles make it easy to pick up and
reposition in a natural, instinctive
manner.
Perfections in the details
The enclosure has four feets
made from special 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 coefficient of
friction makes cabinet easy to move
and slide cabinets with high
durability.
Easy to install
There are eight 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 flexibility.
TEchnology
SL2.15
Technology
SL2.15 rear panel (cable connection to SL3000 unit Amplifier/Controller)
20
129dB
132dB
40Hz ÷ 500Hz
35Hz ÷ 500Hz
100dB
8Ω
100÷500Hz
Low Frequency Section
Acoustic Design
Subwoofer Amplifier Requirement
Number of Drivers
Woofer Size / Voice Coil Diameter / Design
Diaphragm Material
Magnet Type
Direct-Radiating with Bass Reflex
1600W /2x SL2.15 (VHD3200 amp.)
2
2x 15" / 3" Inside Outside
Epoxy Reinforced Cellulose
Ferrite
Speaker Input
Speaker Input
EP4
Speaker Output
Speaker Output
EP4
Cabinet
Cabinet Material
Handles
Color
15mm Baltic birch
2
"Orange peeled" Matt Black or any RAL
Physical Dimensions
Height
Width
Depth
Weight
960mm (37.8")
1080mm (42.52")
350mm (13.78")
61kg (134.5lbs)
Specifications
System Acoustic Perfomance
Max SPL Long-term
Max SPL Peak
-3dB Response
-10dB Response
Sensitivity
Impedance
Crossover Point
SL2.15
Specifications
21
Drawing
SL2.15
Drawing
SL2.15 Architects and Engineer’s
Specifications
The bass module loudspeaker
system shall incorporate two
15-inch low frequency (LF) transducer with ferrite motors and 3-inch
polymide, high-temperature voice
coils. The LF driver shall be mounted inside a compact wood enclosure with bass reflex design.
22
The loudspeaker enclosure shall have
a slim shape and shall incorporate
two side handles with integrated
M10 suspension points and incorporate integrated internal braces with
23 M10 suspension points. The
speaker cabinet shall be finished with
an ultra wear resistant black polymer
coating and fitted with a weather
resistant perforated steel grill.
This speaker shall receive power
from a separate subwoofer
amplifier module (VHD3200)
including speaker protection.
The speaker system shall connect
to the amplifier module via
proprietary cables terminated in
Amphenol AP-4 connectors.
Drawing
SL2.15i
Drawing
SL2.15i Architects and Engineer’s
Specifications
The bass module loudspeaker
system shall incorporate two
15-inch low frequency (LF) transducer with ferrite motors and 3-inch
polymide, high-temperature voice
coils. The LF driver shall be mounted inside a compact wood enclosure with bass reflex design.
The loudspeaker enclosure shall
have a slim shape and shall incorporate two side cut-out handles and
integrated internal braces with 23
M10 suspension points. The speaker
cabinet shall be finished with an
ultra wear resistant black polymer
coating and fitted with a weather
resistant perforated steel grill.
This speaker shall receive power
from a separate subwoofer
amplifer module (VHD3200)
including speaker protection.
The speaker system shall connect
to the amplifier module via
proprietary cables terminated in
Amphenol AP-4 connectors.
23
Accessories
ES Mid/Hi speaker cable MH15,
AP6 connectors - 1,5m
part name: MH15
part number: KVV 987 147
SL Series
- 1,5m (5ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH60,
AP6 connectors - 6m
part name: MH60
part number: KVV 987 125
- 6m (20ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH120,
AP6 connectors - 12m
part name: MH120
part number: KVV 987 126
- 12m (40ft), Mid/Hi Module hook-up
ES Mid/Hi speaker cable MH180,
AP6 connectors - 18m
part name: MH180
part number: KVV 987 127
- 18m (60ft), Mid/Hi Module hook-up
ES Bass speaker cable LF15,
AP4 connectors - 1,5m
part name: LF15
part number: KVV 987 121
- 1,5m (5ft)
- for ES Bass Module daisy-chaining
Accessories
ES Bass speaker cable LF40,
AP4 connectors - 4m
part name: LF40
part number: KVV 987 122
- 4 pcs Quick-lock-pins 6mm included
- 4 pcs M10 hex screws with a hole
included
SL Top Bracket with screws
part name: SL Top Bracket - screws
part number: KVV 987 300
- 7 pcs M10 hex screws included
- 1pc allen key - 6mm included
SL Top Bracket
with Quick-lock pins
part name: SL Top Bracket - Quick pins
part number: KVV 987 312
- 7 pcs M10 hex screws with hole included
- 6 pcs Quick-lock-pins 6mm included
- 1pc allen key - 6mm included
SL Sub Bracket kit
part name: SL SUB Bracket
part number: KVV 987 299
- for joining SL2.15s
- 9 pcs M10 hex screws included
- 1pc allen key - 6mm included
SL Ground Stack
part name: SL GROUND STACK
part number: KVV 987 320
- 4m (13ft)
- for ES Bass Module hook-up
- 6 pcs M10 hex screws with hole included
- 6 pcs Quick-lock-pins 6mm included
- 2pcs knob with screw included
- 1pc allen key - 6mm included
ES Bass speaker cable LF100,
AP4 connectors - 10m
part name: LF100
part number: KVV 987 123
Amphenol AP6 cable-mount
female connector
part name: AP-6-11
part number: KVV 987 050
- 10m (33ft)
- for ES Bass Module hook-up
ES Bass speaker cable LF200,
AP4 connectors - 20m
part name: LF200
part number: KVV 987 124
- 20m (66ft)
- for ES Bass Module hook-up
Speaker 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
- 1pc
- 1pc
24
SL System fly bar
part name: UBV - SL412
part number: KVV 987 293
LF15
LF40
MH60
Amphenol AP6 cable-mount
male connector
part name: AP-6-12
part number: KVV 987 051
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
Configurations
SL - Full range mode
Description
Wiring
4m
CH - A, B
SL3000
Front view :
3m
3m
SL3000
SL412
Products:
Count
2
1
Product
SL412
SL3000
Amplifiers
4m
Rear view :
INPUT A
HI/MID
OUT CH-A
SL3000
SL412
2m
MH120
2m
HI/MID
OUT CH-B
INPUT B
FULL RANGE
ON
OFF
SL series
t4UFSFPTZTUFNSFRVJSFT
Y4-TUFSFPBNQMJöFS
t6QUPQFPQMF
t/VNCFSPGCBTTDBCJOFUT
BOE46#-&7&-TFUVQ
EFQFOETPOUIFTUZMFPGNVTJD
Front view
Accessories:
Count
Accessory Title
$BCMF.)
1m
1m
HI/MID
OUT CH-A
0m
0m
0m
1m
1,01 m
2m
0m
0,35 m
1m
2m
SL - Configuration A
Front view
Description
Wiring
4m
Amplifiers
CH - A, B
SL3000
Front view :
3m
3m
2,59 m
2,59 m
SL3000
SL412
Rear view :
INPUT A
Products:
Count
2
4
1
1
Product
SL412
SL2.15
SL3000
VHD3200
SL412
2m
HI/MID
OUT CH-B
INPUT B
FULL RANGE
ON
SL2.15
OFF
TO CH-B SUB AMP.
SL2.15
VHD3200
LF15
Front view :
1m
Accessories:
Accessory Title
$BCMF.)
$BCMF-'
$BCMF-'
MH120
2m
1m
Count
HI/MID
OUT CH-A
SL3000
SL2.15
HI/MID
OUT CH-A
SL2.15
LF40
0m
Rear view :
LOW
OUT CH-A
BRIDGE - INPUT A
LOW
OUT CH-B
LOW
OUT CH-A
0m
ON
0m
1m
1,01 m
2m
0m
0,35 m
1m
Configurations
t4UFSFPTZTUFNSFRVJSFT
Y4-TUFSFPBNQMJöFS
Y7)%TVCBNQMJöFS
t6QUPQFPQMF
t/VNCFSPGCBTTDBCJOFUT
BOE46#-&7&-TFUVQ
EFQFOETPOUIFTUZMFPGNVTJD
4m
OFF
2m
SL - Configuration B
Description
t4UFSFPTZTUFNSFRVJSFT
Y4-TUFSFPBNQMJöFS
Y7)%TVCBNQMJöFS
t6QUPQFPQMF
t/VNCFSPGCBTTDBCJOFUT
BOE46#-&7&-TFUVQ
EFQFOETPOUIFTUZMFPGNVTJD
Front view
Wiring
4m
4m
3,55 m
3,55 m
Amplifiers
CH - A
SL2.15
SL3000
Front view :
SL2.15
3m
3m
SL3000
LF40
Rear view :
INPUT A
Products:
Count
2
8
1
2
Product
SL412
SL2.15
SL3000
VHD3200
SL412
SL412
MH120
2m
2m
HI/MID
OUT CH-B
ON
SL2.15
OFF
TO CH-B SUB AMP.
SL2.15
VHD3200
Front view :
1m
Accessories:
Accessory Title
$BCMF.)
$BCMF-'
INPUT B
FULL RANGE
1m
Count
HI/MID
OUT CH-A
SL3000
2x
SL2.15
HI/MID
OUT CH-A
2x SL2.15
Rear view :
LF40
LF15
LF40
0m
0m
LOW
OUT CH-A
LOW
OUT CH-A
BRIDGE - INPUT A
ON
0m
1m
2 m 2,2 m
0m
0,75 m
1m
2m
OFF
25
Configurations
SL - Configuration C
Description
Front view
Wiring
Amplifiers
SL Series
t4UFSFPTZTUFNSFRVJSFT
Y4-TUFSFPBNQMJöFS
Y7)%TVCBNQMJöFS
t6QUPQFPQMF
t/VNCFSPGCBTTDBCJOFUT
BOE46#-&7&-TFUVQ
EFQFOETPOUIFTUZMFPGNVTJD
4m
4m
CH - A
SL3000
4-
4-
'SPOUWJFX
3m
3m
SL3000
MH120
3FBSWJFX
*/165"
)*.*%
065$)"
4-
Products:
Accessory Title
$BCMF.)
-'
-'
)*.*%
065$)#
*/165#
FULL RANGE
ON
OFF
50$)#46#".1
1,21m
1,21m
1m
1m
7)%
Accessories:
Count
2m
2m
VHD3200
Y7)%
Product
4-
7)%
4-
7)%
7)%
7)%
7)%
'SPOUWJFX
LF15
)*.*%
065$)"
Y7)%
Count
LF15
LF40
-08
065$)"
0m
0m
-08
065$)"
3FBSWJFX
LF40
BRIDGE - INPUT A
ON
0m
1m
1,4 m
0m
2m
0,75 m
1m
OFF
2m
SL - Configuration D
Front view
Description
Wiring
t4UFSFPTZTUFNSFRVJSFT
Y4-TUFSFPBNQMJöFS
Y7)%TVCBNQMJöFS
t6QUPQFPQMF
t/VNCFSPGCBTTDBCJOFUT
BOE46#-&7&-TFUVQ
EFQFOETPOUIFTUZMFPGNVTJD
Amplifiers
4m
4m
CH - A
SL3000
4-
4-
3m
'SPOUWJFX
3m
SL3000
MH120
3FBSWJFX
*/165"
)*.*%
065$)"
4-
Products:
Count
Product
4-
7)%
4-
7)%
2m
Configurations
Count
26
Accessory Title
$BCMF.)
$BCMF-'
*/165#
)*.*%
065$)#
FULL RANGE
ON
OFF
50$)#46#".1
VHD3200
1m
Accessories:
)*.*%
065$)"
2m
'SPOUWJFX
1m
7)%
0,7 m
0,7 m
3FBSWJFX
7)%
LF40
0m
-08
065$)"
0m
BRIDGE - INPUT A
ON
0m
1m
1,01 m
2m
0m
1m
1,33 m
2m
OFF
-08
065$)"
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
KVV120084-00-03-0
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