KLING & FREITAG NOMOS XLC User manual

K&F NOMOS XLC
Important Information,
Please Read Before Use!
KLING & FREITAG GmbH
Wohlenbergstrasse 5
D-30179 Hannover
TEL [phone]
FAX [phone]
www.kling-freitag.de
User's Manual
Translation of the original instructions
Version 4.6
Released: 15.11.2017

User's Manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2017 Version 4.6 Page 3 of 22
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
2.3 System Requirements 6
3Safety Instructions 6
3.1 Safety Instructions for Stacked Setups 7
3.2 Protecting the Speakers / Operating Safety 7
4NOMOS XLC combined with other K&F tops. 8
5Stacking the Subwoofers 9
6Cardioid Arrays with Controller CD 44 9
6.1 Setup instructions for a cardioid array 9
6.2 LSBlocks for cardioid useNOMOS XLC 11
7Fuse in the NOMOS XLC 11
7.1 Replacing the Fuses 11
8Connection 12
8.1 Terminal assignment 12
8.2 Cabling a K&F System Rack 13
8.3 Connecting the NOMOS XLC 14
9Dimensions NOMOS XLC 15
10 Measuring Diagrams 16
11 Technical Specifications 17
12 EC Declaration of Conformity 18
13 Accessories 19
14 Transportation and Storage 20
15 Disposal 20
15.1 Regulations for Disposal 20
15.1.1 Germany 20
15.1.2 EU, Norway, Iceland, and Liechtenstein 20
15.1.3 All Other Countries 21

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KLING & FREITAG GMBH © 2017 Version 4.6 Page 4 of 22
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 XLC system to achieve its full
potential read the user's manual carefully before use. This item is a quality accessory for the
NOMOS XLC speaker system. As the owner of a NOMOS XLC 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.
1.2 About this Manual
User's Manual K&F NOMOS XLC.
© KLING & FREITAG GmbH, 2009, 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.
To ensure safe operation, all persons using the speaker system must have access to these
user's manual and all other relevant material during installation. Don’t set up or operate the
speaker system before you have carefully read and fully understood this user's manual. Keep
the user's manual readily available on site at all times.
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, Wohlenbergstr. 5, D-30179 Hannover
Phone [phone], fax [phone] (other countries)

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2. Product Description
2.1 Items Included
• Cardioid Bass Speaker NOMOS XLC
• (1x) User manual
2.2 Components
1 2 3 4 5 7 8 9 6
1. Stacking grooves (8x) , adjacent: plastic glider
2. Butterfly handles (8x)
3. locking profile
4. speaker enclosure
5. front grille with acoustic foam
6. rear grille with acoustic foam
7. SpeakOn connector
8. transport castors, 100 mm, permanently installed
9. Plastic glider (8x) , adjacent: stacking grooves

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2.3 System Requirements
Lab.gruppen IPD 2400
or
K&F PLM+ 20k44 (SystemAmp, ProRental)
K&F PLM+ 12k44 (SystemAmp, ProRental)
with
K&F Connector Panel CP+
Terminalpanel (optional)
or
K&F D200:4 (SystemAmp, InstallSound)
K&F D120:4 (SystemAmp, InstallSound)
K&F D80:4 (SystemAmp, InstallSound)
or
K&F SystemRack
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.
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.

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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 Safety Instructions for Stacked Setups
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 system 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.
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 XLC you must always strap the speakers to one
another and secure them from falling over.
3.2 Protecting the Speakers / Operating Safety
NOMOS XLC speakers may only be used in combination with a K&F SystemAmp/SystemRack.
System Requirements for Use
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.
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.

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• where low air circulation (convection) prevails.
• that have a small distance to a wall.
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.
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.
4. NOMOS XLC combined with other K&F tops.
The NOMOS XLC can be combined with K&F top speakers using the controller K&F CD 44.
• To do so, select the desired LS blocks for the top in the Controller CD 44 or systemamp
TOPAS, and combine these with the desired LS block for the NOMOS XLC.
In the respective Hardware Manuals, you will find detailed descriptions about connecting the
SEQUENZA 10 speakers and the settings necessary on the System Controller CD 44. SONA SUB

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5. Stacking the Subwoofers
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.
Warning
You must additionally secure
vertically standing stacked
NOMOS XLC systems from falling
since the structural safety is not
guaranteed, otherwise.
6. Cardioid Arrays with Controller CD 44
The subwoofer NOMOS XLC is a cardioid loudspeaker.
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.
6.1 Setup instructions for a cardioid array
In order to implement a cardioid or hyper-cardioid setup, the fronts of the speakers must face
the audience.

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When cardioid speakers are put on the floor, ensure that there is always a distance of at least
40 cm between and over the speakers.
We recommend a safe distance to a possible obstruction of at least one meter (1 m).
Distance at standing speakers:
40 cm [1,3 ft]
40 cm [1,3 ft]
Distance at lying speakers:
40 cm [1,3 ft]
40 cm [1,3 ft]

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6.2 LSBlocks for cardioid useNOMOS XLC
The following cardioid or hypercardioid setups are available in the K&F CD 44. All setups with
a cutoff frequency other than 60 Hz have a cutoff frequency of 100 Hz.
Operating mode Chassis LSBlocks (NOMOS LT)
'Cardioid' front NOMOS LT C-F
rear NOMOS LT C-R
'Hypercardioid' front NOMOS LT H-F
rear NOMOS LT H-R
'Infrabass Cardioid' front NOMOS LT C-F60Hz
rear NOMOS LT C-R60Hz
'Infrabass Hypercardioid' Front NOMOS LT H-F60Hz
Rear NOMOS LT H-R60Hz
7. Fuse in the NOMOS XLC
To increase the operating safety of the NOMOS XLC, 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).
7.1 Replacing the Fuses
The fuse holder is behind the rear chassis.
Replace the fuse with the following original fuse only:
Bussmann S 506-8A, T 250 V

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8. Connection
The operating safety and the highest-possible performance is only guaranteed in conjunction
with the K&F Topas or K&F SystemRack.
8.1 Terminal assignment
2
-
2+
1
-
1+
2
-
2+
1
-
1+
+
-
+
-
REAR SPEAKER
FRONT SPEAKERS
SPEAKON CONNECTORS
+
-

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8.2 Cabling a K&F System Rack

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8.3 Connecting the NOMOS XLC
The following connecting diagram shows an example with the K&F CD 44 Routing '1 in 4 out'.
A maximum of 3 NOMOS XLC subwoofers can be driven by one K&F SystemRack. If you want
to use 3 NOMOS XLC subwoofers with a K&F SystemRack you will need the Break Out Box
'K&F BOB-C' available as an accessory.

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9. Dimensions NOMOS XLC
Weight: 95.0 kg

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10. Measuring Diagrams
Polar Patterns
Cardioid
80 Hz
100 Hz
125 Hz
40 Hz
50 Hz
63 Hz
0°
30°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
0°
30°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
-12 dB
-12 dB
-24 dB
-24 dB
Hypercardioid
80 Hz
100 Hz
125 Hz
40 Hz
50 Hz
63 Hz
0°
30°
330°
270°
240°
210°
180°
150°
120°
90°
60°
0°
30°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
-12 dB
-24 dB
-12 dB
-24 dB
Frequency response

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11. Technical Specifications
NOMOS XLC
Concept Bass reflex system
Operated with K&F PLM+ Serie, K&F D-Serie, K&F SystemRack,
K&F TOPAS
Lower cut-off frequency 28 Hz (-10 dB)/33 Hz (-3 dB)
Coverage Cardioid/Hypercardiod
Nominal power handling 1,000 watts (front)
500 watts (rear)
program 2,000 Watt (front)
1,000 Watt (rear)
peak 4,000 watts (front)
2,000 watts (rear)
Max. SPL (1 m) 139 dB (SPL Peak/1 m/half space)
Impedance nominal 4 Ohm (front)
8 Ohm (rear)
loudspeaker/channel see matrix
Components 3 x 18“ long excursion chassis, 100 mm voice
coil with double centring, internal and external
ventilation, demodulation ring for minimal
distortion
Connection 2 x Speakon® 4-pin NLT4MP
front speakers: 1+ / 1-
rear speaker: 2+ / 2-
IN parallel to OUT
Enclosure Design
Frame reinforced enclosure, 15 mm multiplex
with highly resilient Polyurea synthetic black
coating, 8 ergonomical butterfly handles, 8 non-
abrasive plastic sliders, 8 stacking grooves for
save stacking of identical enclosures, 4 x 100 mm
transport castors, 2 locking profiles for transport
optional transport cover, ballproof steel grille
with exchangeable black acoustic foam
Dimensions (H x W x D) 1.200 x 600 x 903 mm
Weight 95.0 kg/Transport Cover: 8.7 kg (optional
accessorie)
1) Pink noise 40 – 250 Hz, 2 h; 2) as 1) but with 50% duty cycle
Measurings taken with the K&F SystemRack. The K&F SystemRack is required for operation of
the K&F NOMOS XLC.

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12. EC Declaration of Conformity
Manufacturer: Kling & Freitag GmbH
Junkersstraße 14
30179 Hannover
Germany
Authorized representative for the
compilation of the technical documents:
Kling & Freitag GmbH
Abt. Entwicklung
049 (0)511 96997-50
Germany
Product: Loudspeakersystem
NOMOS XLC
We declare that the designated product is in conformity with the protection
requirements imposed by the following EU directives:
• 2014/35/EU, Niederspannungsrichtlinie
• 2014/30/EU, Electromagnetic Compatibility
• 2011/65/EU, RoHS II
Conformance of the products with the requirements is approved by compliance with the
following harmonized European standards:
• DIN EN/ISO 60065 : 2002/A12:2011
• Eurocode 1/DIN EN 1991-1-1 : 12/2010
• Eurocode 3/DIN EN 1993-1-1 : 12/2010
• Eurocode 9/DIN EN 1999-1-1 : 12/2010
• EN 55103+1 : 2009+A1 : 2012
• EN 55103-2 : 2009
National regulations:
• DGUV, Regulation 15 (BGV C1)
Hannover, 9th November 2017 Jürgen Freitag
(Managing Director / CEO)

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Protective Cover NOMOS XLC
Transport Cover NOMOS XLC
K&F BOB-C:
Speaker signal distributor, 1 x 8-pin into 3
x 4-pin. For operations of 3 x NOMOS XLC
with a K&F SystemRack.
13. Accessories

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14. Transportation and Storage
The housing of the speaker is protected against short-term moisture by a coating. despite, be
sure to store, transport, and use the accessories in dry environments only. The NOMOS XLC
System is not designed for long-term use in a corrosive environment.
Make sure that the system is adequately ventilated during longer storage periods so any
residual moisture can escape from the equipment.
Furthermore, you should ensure that the NOMOS XLC System is protected from mechanical
strain to prevent possible damage.
We recommend using the optional soft cover.
15. Disposal
15.1 Regulations for Disposal
15.1.1 Germany
Don’t dispose of waste electrical equipment through household waste.
Don’t deliver it to official recycling points either.
All KLING & FREITAG products are plain business-to-business (B2B) products. Therefore,
KLING & FREITAG GmbH is exclusively responsible for disposing of all KLING & FREITAG waste
equipment marked with a garbage-can icon. Call the below phone number when you have a
KLING & FREITAG product (marked with the garbage-can icon) for disposal. We will offer you
a straightforward and professional disposal at no cost.
KLING & FREITAG equipment with no such icon was sold before 24 March 2006; in that case,
the owner is legally responsible for disposal. We will, however, gladly assist you by naming
appropriate ways of disposal.
For further disposal information of KLING & FREITAG waste products, call [phone]
Background information: The Electrical and Electronic Equipment and Appliances Act
(ElektroG) is the German implementation of the European (EU) Waste Electrical and
Electronic Equipment Directive (WEEE, 2002/96/EC).
Therefore, starting on 24 March 2006, KLING & FREITAG GmbH has marked all products
subject to the WEEE that are distributed in Germany with an icon showing a crossed-out
garbage can with a white bar below it. The icon indicates that the equipment was distributed
on or after 24 March 2006 and must not be disposed of through household waste.
KLING & FREITAG GmbH is legally registered as a manufacturer with the German waste-
equipment registration authority (EAR). The WEEE registration number is: DE64110372.
We substantiated towards the EAR that our products are for B2B trade only.
15.1.2 EU, Norway, Iceland, and Liechtenstein
Don’t dispose of waste electrical equipment through household waste.
Starting on 13 August 2005, KLING & FREITAG GMBH has marked all products subject to the
WEEE directive that are distributed in any member state of the European Union (except
Germany), Norway, Iceland, or Liechtenstein with an icon showing a crossed-out garbage can
with a white bar below it. The icon indicates that the equipment was distributed on or after
13 August 2005 and must not be disposed of through household waste.
Unfortunately, the European WEEE directive was implemented in different national
legislation in the EU member states, making it impossible to offer a consistent disposal
solution throughout Europe.
The local distributor (sales partner) in the respective country is responsible for complying with
the applicable legislation.