KLING & FREITAG NOMOS XLT User manual

K&F NOMOS XLT
Important Information,
Please Read Before Use!
KLING & FREITAG GmbH
Junkersstraße 14
D-30179 Hannover
TEL [phone]
FAX [phone]
www.kling-freitag.de
User's Manual
Translation of the original instructions
Version 1.7
Released: 30.03.2017

User's Manual K&F NOMOS XLT
KLING & FREITAG GMBH © 2017 Version 1.7 Page 3 of 23
Table of contents
1Introduction 4
1.1 Icons Used 4
1.2 About this Manual 4
2Product Description 5
2.1 Items Included 5
2.2 Components 5
3Safety Instructions 6
3.1 Notes for Mounting the Speakers 6
3.2 Instructions for Speaker Stacking 6
3.3 Protecting the Speakers / Operating Safety 7
4Setup 8
4.1 Removing the Transport Covers 8
4.2 Stacked Setup 8
5Configuration and Connecting Diagram 9
5.1 System Requirements 9
5.2 Terminal assignment 10
5.3 NOMOS XLT combined with other K&F tops. 11
5.4 Cardioid Arrays with NOMOS XLT 12
5.4.1 Setup instructions for a cardioid array 12
5.4.2 LSBlocks for cardioid use 13
5.5 Cardioid Configurations with different Speakers 14
6Fuse in the NOMOS XLT 14
6.1 Replacing the Fuses 14
6.2 Replacing the Chassis 14
7Measuring Diagrams 15
8Dimensions NOMOS XLT 17
9Technical Specifications 18
10 EC Declaration of Conformity 19
11 Accessories 19
12 Care and Maintenance 21
13 Transportation and Storage 21
14 Disposal 21
14.1 Regulations for Disposal 21
14.1.1 Germany 21
14.1.2 EU, Norway, Iceland, and Liechtenstein 22
14.1.3 All Other Countries 22

User's Manual K&F NOMOS XLT
KLING & FREITAG GMBH © 2017 Version 1.7 Page 4 of 23
1. Introduction
Thank you for purchasing a KLING & FREITAG product. To guarantee a trouble-free operating
of the equipment and to allow your KLING & FREITAG NOMOS XLT system to achieve its full
potential read the user's manual carefully before use. This item is a quality accessory for the
NOMOS XLT speaker system. As the owner of a NOMOS XLT loudspeaker, you now have a
versatile and highly professional tool which, when operated properly, is a true pleasure to
use.
1.1 Icons Used
Warning
This icon indicates a risk of injury or death. Not following these instructions may result in
serious health problems including potentially fatal injuries.
Caution
This icon indicates a possibly dangerous situation. Not following these instructions may cause
minor injuries or damage.
This icon marks instructions for proper use of the described products. Not following these
instructions may cause malfunctions or damage.
Tip
This icon marks information provided for simplified use of the described products.
1.2 About this Manual
© KLING & FREITAG GmbH. All rights reserved.
All specifications regarding the features of the described products and applicable safety
guidelines provided in this manual are based on information available at the time of
publishing.
We assume no responsibility for technical specifications, dimensions, weights, and properties.
All information in this manual is subject to change without notice.
All persons who use the speaker system must have this guide and all further information
for safe operations available to them during assembly, disassembly, and use. The speaker
system may neither be set up nor used until these user's manual has been read, understood
and kept readily available in site.
All KLING & FREITAG manuals are originally authored in German.
KLING & FREITAG spare manuals are separately available for order or can be downloaded
from our website: www.kling-freitag.de.
Contact Us: [email protected]
KLING & FREITAG GMBH, Junkersstr. 14, D-30179 Hannover
Phone [phone], fax [phone] (other countries)

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2. Product Description
2.1 Items Included
• Subwoofer NOMOS XLT
• User's Manual
2.2 Components
1
2
3
5
6
7
8
9
4
1. Stacking grooves (8x) , adjacent: plastic glider
2. Butterfly handles (8x)
3. speaker enclosure
4. Speakon connector, front (behind company logo)
5. Threaded stand flange
6. Front grille with acoustic foam
7. SpeakOn connector
8. Plastic glider (8x) , adjacent: stacking grooves
9. locking profiles for transport cover (2x)

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3. Safety Instructions
Warning
For commercial use as specified in this document only!
To prevent personal injury and damage, be sure to securely place or suspend the speaker as
specified in the locally applicable standards.
The information described here does not relieve the user of the duty to follow the given
safety requirements and legal regulations.
Only qualified technicians are permitted to perform the installation steps. Be sure to use
personal protective equipment at all times.
The persons in charge with putting up the speaker are responsible for safe setup and use and
must guarantee it.
In mobile and stationary installations, always use installation parts supplied by KLING &
FREITAG.
Unless otherwise stated, use KLING & FREITAG original parts only. Never use other parts (in
particular, parts not made by KLING & FREITAG).
Be sure to always visually inspect all safety-related speaker and accessory components before
use. In fixed installations, check the speaker for signs of wear at regular intervals. If there are
signs of wear, cracks, or deformation, etc., replace the affected parts immediately.
Caution
Run the cables in a way that nobody can trip over them.
At least 2 people are necessary to carry the speaker.
Preventing Hearing Damage
Keep your distance from operating speakers. Even loudness levels of approx. 90 dB - that you
subjectively judge as being low - can lead to hearing damage.
3.1 Notes for Mounting the Speakers
Warning
Mount the speakers securely. To avoid injury or damage, always be sure to mount the
speakers securely so that they do not fall.
Please note that speakers can move as a result of vibrations. To prevent them from falling
from their mounted position, they must be secured properly.
Run the cables in a way that nobody can trip over them.
3.2 Instructions for Speaker Stacking
Warning
Falling speakers pose the threat of fatal injuries to people near them!
Be sure to follow the relevant national specifications, norms, and safety regulations.
Always make sure that a sufficient safety level is still given, even when outside forces have
an additional impact on the stacked speakers. Before setup, carefully ascertain if there are
any possible outside forces that could result in the array falling over. (Slant of the ground /
the bearing capacity of the ground / wind / person or vehicle impact, etc.). A technical expert
who is responsible for the setup must evaluate and determine necessary measures (including
calculating the statics). If necessary, obtain expert proof of stability.
Stacked systems may not fall over even if they are inclined by 15° in each direction. If this
requirement is not fulfilled, then it is necessary to take steps to achieve compliance. Possible
measures include strapping it to an appropriate base structure or fastening it using safety
straps. A planned tilt of the loudspeakers ist not permissible. In calculations, the tilted setup
serves the purpose of levelling out unevenness.

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With the set-up systems for which you cannot verify the structural safety without safeguards,
you must secure them to prevent sliding or tipping in order to provide proof of this safety. To
secure the system from tipping over, use water tanks or floor bolts. Other possible measures
include strapping it to a suitable substructure or tying it using safety straps.
For outdoor and trade fair venues in which wind loads must be considered, additional proof
of stability is necessary.
Make sure that the stacking feet of subwoofers stacked on top of one another are securely
positioned in the grooves of the lower speaker.
If you place a top speaker on a NOMOS XLT you must always strap the speakers to one
another and secure them from falling over.
3.3 Protecting the Speakers / Operating Safety
NOMOS XLT speakers may only be used in combination with a K&F SystemAmp/SystemRack.
In general, audio signals must not be overdriven. This may be caused by mixing consoles,
equalizers, effect equipment, etc. and should be indicated on this equipment. When a power
amplifier is overloaded at the output (clipping), then the amplifier activates a clipping
warning signal. In any case, the signal must be reduced as soon as it sounds unnaturally
distorted.
For damage caused by
• overloading the speakers or
• using the speakers without K&F SystemAmp/SystemRack
we do not assume warranty and excludes liability for possible consequential damage.
The following signals may damage the speakers:
• permanent high-level signals with high frequency and continuous noise from feedback,
• permanently distorted high-level signals,
• noises, which occur when the amplifier is on while equipment is being connected,
disconnected or switched on.
Do not install devices in any of the following places:
• where the devices are permanently exposed to direct sunlight.
• where the devices are exposed to high moisture or rain.
• where the devices are exposed to strong vibrations and dust.
Damage caused by the speakers' magnetic fields
Speakers are permanently surrounded by a magnetic field, even when they are not
connected. Therefore, during transport and placement of the speakers, it is important to
ensure that there is always approx. 1 m between the speakers and magnetic data media and
computer/video monitors.

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4. Setup
4.1 Removing the Transport Covers
To remove the transport lid, turn the appropriate catches 180° to completely release the
latch.
Lift the lid from the speaker.
4.2 Stacked Setup
1) Securely place the bottom subwoofer
onto a level surface.
2) Stack the subwoofers on top of one
another. Make sure that the stacking
feet of subwoofers stacked on top of one
another are securely positioned in the
grooves of the lower speaker.
3) Stacked systems must be stable even if
they are inclined by 15 degrees without
additional additional securing.
If this is not the case the systems have to
be secured against falling over in order to
guarantee the stability of the stack.
For example:

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5. Configuration and Connecting Diagram
5.1 System Requirements
K&F PLM+ 20k44 (SystemAmp, ProRental)
K&F PLM+ 12k44 (SystemAmp, ProRental)
K&F PLM+ 12k44 (SystemAmp, ProRental)
or
K&F D200:4 (SystemAmp, InstallSound)
K&F D120:4 (SystemAmp, InstallSound)
K&F D80:4 (SystemAmp, InstallSound)
(SystemAmp, InstallSound)
K&F D120:4 (SystemAmp, InstallSound)
K&F D80:4 (SystemAmp, InstallSound)
K&F D200:4
or
K&F SystemRack:
Please make sure to update your K&F systemamp or systemrack with the required LS Blocks,
starting with "NomXLT".

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5.2 Terminal assignment
+
-
FRONT SPEAKERS
+
-
2
-
2+
1
-
1+
SPEAKON CONNECTORS
REAR
2
-
2+
1
-
1+
SPEAKON CONNECTOR
FRONT
2
-
2+
1
-
1+

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5.3 NOMOS XLT combined with other K&F tops.
The NOMOS XLT can only be combined in 2 channel mode with all K&F top speakers when
using a K&F systemamp or systemrack.
To do so, select the desired LS blocks for the top speaker in the K&F systemamp or systemrack,
and combine these with the LS block for the NOMOS XLT subwoofer.
If you need a higher bass level, activate
the filter 'BassBoost' via Filter B for the
subwoofers.
If you need an higher level at the overlab
range betwenn subwoofer and top
activate the filter 'LoMidBoost' via Filter
B.

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5.4 Cardioid Arrays with NOMOS XLT
The subwoofer NOMOS XLT is designed so that it can be used as a cardioid and hypercardioid
system in an array of three subwoofers, or in multiples of three.
A cardioid array results in an increase of sound pressure towards the front because of the
rear-facing subwoofer. In the rear area (cardioid) or in the lateral side area (hypercardioid),
on the other hand, the sound pressure is clearly reduced.
With this, you achieve
• less unwanted sound on the stage
• low feedback
• simplified miking
• improved room acoustics with fewer reflections from the rear and side walls, or – when
flown – from the ceiling
• simplified adherence of sound emission limits and therefore less noise disturbance for
nearby residential areas during open air events.
5.4.1 Setup instructions for a cardioid array
To achieve a cardioid or hypercardioid pattern, you must always have an array with 3
subwoofers - or a multiple of 3 subwoofers - setup next to one another (3, 6, 9, etc.). In
this set of three, the middle one must be stacked or flown rear-facing while both other
subwoofers are front-facing.
You can stack the subwoofers even when they are facing opposite directions, and you can
connect them to front-facing systems.
There is an additional SpeakOn connector on the front grille so that you can connect the
cables to the rear-facing side of all subwoofers in a cardioid array.
You can choose from the following options for cardioid and hypercardioid setups:
Unifilar drawing:
3 x NOMOS XLT horizontal
3 x NOMOS XLT vertical
3 x NOMOS XLT stacked

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When cardioid arrays are stacked on the floor, ensure that there is always a distance of at least
40 cm between each unit of 3.
Unifilar drawing:
40 cm (1.3 ft)
40 cm (1.3 ft)
40 cm (1.3 ft)
5.4.2 LSBlocks for cardioid use
The rear-facing subwoofer is controlled using the Controller CD 44 via LSBlock for cardioid /
hypercardioid arrays for rear-emitting subwoofers. The front-facing subwoofers are
controlled via LSBlock for cardioid / hypercardioid arrays for front-emitting subwoofers. The
following cardioid or hypercardioid setups are available in the CD 44:
Operation Mode of the NOMOS XLT LSBlocks
'Cardioid Front', front-facing NomXLT C-F
'Cardioid Rear', rear-facing NomXLT C-R
'Hypercardioid-Front', front-facing NomXLT HC-F
'Hypercardioid-Rear', rear-facing NomXLT HC-R
'Infrabass Cardioid Front', front-facing NomXLT C-F60Hz
'Infrabass Cardioid Rear', rear-facing NomXLT C-R60Hz
'Infrabass Hypercardioid Front', front-
facing
NomXLT HC-F60Hz
'Infrabass Hypercardioid Rear', rear-facing NomXLT HC-R60Hz

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5.5 Cardioid Configurations with different Speakers
NOMOS XLT are suitable for cardioid configurations with certain K&F speakers. A chassis ratio
of 1 to 2 should be maintained within these configurations.
The speaker with one chassis should be standing on the floor and directed to the rear while
the speaker with two chassis directs to the front.
1 x NOMOS XLS under NOMOS XLT
standing
6. Fuse in the NOMOS XLT
To increase the operating safety of the NOMOS XLT, the subwoofers are equipped with fuses
at the signal input. These fuses reduce the risk of consequential damage resulting from a
short circuit (i.e. charred cables / connectors / fire damage).
When the fuse is burned out, then the chassis is most likely already ruined, as the fuse just
prevents consequential damage resulting from a short circuit of the chassis. A replacement of
the chassis is, therefore, unavoidable.
6.1 Replacing the Fuses
The fuse holder is behind the terminal.
Warning
Replace the fuse with the following original fuse only:
Bussmann S 506-8A, T 250 V
Required tools:
• 2.5 mm Allen key for loosening the terminals
Instructions:
1. Loosen the four screws on the terminal.
2. Carefully pull the cables out of the speaker enclosure.
3. Open the fuse holder.
4. Replace the blown fuse.
5. Push the cables carefully back into the enclosure.
6. Pay attention to the correct alignment of the terminal.
Screw the terminal back on.
6.2 Replacing the Chassis
Required tools:

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• 3 mm Allen key for loosening the front grille
• 3 mm Allen key for loosening the chassis
Instructions:
1. Remove the front grille.
2. Remove the speaker chassis.
3. Pay attention to the correct polarity of the chassis.
Connect the new chassis.
4. Check the polarity of all mounted chassis.
5. By tightening the screws diagonally in two steps, a deformation of the chassis and thus a
possible deentring of the voice coil can be avoided. First loosely fasten the screws for the
chassis diagonal from one another, then tighten them.
6. Mount the front grille.
7. Measuring Diagrams
Polar Patterns
Cardioid
Hypercardioid
Note: Attenuation factor depends on setting and configuration (s. p. ).
Frequency response

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8. Dimensions NOMOS XLT
Weight: 80.5 kg

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9. Technical Specifications
NOMOS XLT
Concept Bass reflex system
Operated with K&F PLM+ Serie, K&F D-Serie, K&F SystemRack
Crossover frequencies 100 Hz/60 Hz
Lower cut-off frequency 24 Hz (-10 dB)/27 Hz (-3 dB)
Coverage Omnidirectional (a cluster of 3 or in combination with
the NOMOS XLS can be driven in cardioid)
Nominal power handling 1500 watts
program 3000 watts
peak 6000 watts
Max. SPL (1 m) 141 dB (SPL Peak/1 m/half space)
Impedance nominal 4 Ohm
loudspeaker/channel see matrix
Components 2 x 18“ subwooferchassis, 57 mm peak-to-peak
excursion, inside and outside ventilated voice coil
gap for reduced power compression, aluminium
demodulating ring for very low distortion
Connection 2 x speakON® 4-pol NLT4MP (+1/-1) (rear)
1 x speakON® 4-pol NLT4MP (+1/-1) (front)
IN parallel zu OUT
Enclosure Design
Frame reinforced enclosure, 15 mm multiplex with
highly resilient Polyurea synthetic coating with 8
ergonomical butterfly handles 8 non-abrasive plastic
sliders and stacking grooves for save stacking of
NOMOS XLS and XLT and Line 212, 2 locking profiles
for optional transport cover, additional Speakon®-
connector hidden behind the rotatable logo on the
front grille, ball-proof steel grille with black acoustic
foam
Dimensions (H x W x D) 1191 x 591 x 740 mm
Weight 80.5 kg
Color RAL 9005 (black)
Options 'Suspension' with 3 K&F VariPoints®,
'RAL Special Colour'

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10. EC Declaration of Conformity
applicable to all products designated hereafter and distributed by KLING & FREITAG
GmbH including model variants unless these products have been altered afterwards.
Loudspeaker systems:
ACCESS B5
ACCESS B10
ACCESS T5/T9
CA 106
CA 205 *) **)
CA 1001
CA 1201 *)
CA 1215 -6/-9
CA 1515 -6/-9
GRAVIS 8 W
GRAVIS 12 N/W*
GRAVIS 12+ N/W/XW
GRAVIS 12+ N/W/XW AS
GRAVIS 15 N/W/XW
E 90 MK II
LINE 212 -6/-9
NOMOS LS CIN
NOMOS LS II
NOMOS LT
NOMOS XLC
NOMOS XLS
NOMOS XLT
PASSIO **)
PASSIO SUB 12
PASSIO SUB 15
SCENA 15
SEQUENZA 10 N/W
SEQUENZA 10 B
SEQUENZA 5 W
SEQUENZA 5 B
SONA 5 **)
SONA 6
SONA 8
SONA SUB **)
SONS SUB II
SW 112
SW 115D *)
SW 115E
SW 118E
SW 212E
*) These products are discontinued.
**) These systems are not covered by the Low Voltage Directive because of the rated
voltage used.
We declare that the designated product(s) are in conformity with the protection
requirements imposed by the following EU directives:
Electromagnetic Compatibility (EMC) Directive
Low Voltage Directive
Technical documentation for the assessment of
electrical and electronic products with respect to
the restriction of hazardous substances
(2004/108/EC)
(2006/95/EC)
(VDE 0042-12:2013-02)
The operating conditions specified in these user's manual must be met accordingly.
This declaration is issued under sole responsibility of the manufacturer:
KLING & FREITAG GmbH
Junkersstraße 14, D-30179 Hannover, Germany
Hannover, 30th March 2015 Jürgen Freitag
(Managing Director / CEO)

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11. Accessories
Transport Cover NOMOS XLT
Protective Cover NOMOS XLT
Loudspeaker patch cable NLT-425, 5 m