KLING & FREITAG NOMOS XLC User manual

K&F�NOMOS�XLC
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 Revison 2.0
Released: 29.01.2010

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 3 of 18
Table of contents
1 Introduction 4
1.1 Symbols in User's Manual 4
1.2 Information about this User's Manual 4
2 Scope�of�Delivery 5
3 System�Requirements�for�Use 5
4 Safety�Instructions 5
4.1 Safety Instructions for Stacked Setups 5
4.2 Protecting the Speakers / Operating Safety 7
5 Stacking�the�Subwoofers 8
6 Cardioid�Arrays�with�NOMOS�XLC 8
6.1 Setup instructions for a cardioid array 9
6.2 Controller setups for cardioid use 10
7 NOMOS�XLC�combined�with�other�K&F�tops. 10
8 Fuse�in�the�NOMOS�XLC 10
8.1 Replacing the Fuses 10
9 Wiring 11
9.1 Terminal assignment 11
9.2 Cabling a K&F System Rack 12
9.3 Connecting the NOMOS XLC 13
10 Transport�and�Storage 14
11 Technical�Specifications 14
12 Measuring�diagrams 15
13 Dimensions�NOMOS�XLC 16
14 Accessories 17
15 Disposal 18
15.1 Regulations for Disposal 18
15.1.1 Germany 18
15.1.2 EU, Norway, Iceland, and Liechtenstein 18
15.1.3 All other Countries 18

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 4 of 18
1. Introduction
Thank you for your decision to buy a KLING & FREITAG sound system. To guarantee a trouble-free op-
erating of the equipment and to allow your KLING & FREITAG NOMOS XLC system to achieve its full
potential please read the operating instructions carefully before use. With the purchase of a NOMOS
XLC system, you have acquired a large sound system with the highest possible quality and performance
capabilities. As the owner of a NOMOS XLC system, you now have a versatile and highly professional
tool which, when operated properly, is a true pleasure to use.
1.1 Symbols�in�User's�Manual
Warning
This symbol indicates the possibility of life-threatening danger and a health risk for persons. Not following
these instructions may result in serious health problems including potentially fatal injuries.
Caution
This symbol indicates a possibly dangerous situation. Not following these instructions may cause minor
injuries or cause property damage.
Important
This symbol gives instructions for the proper use of the described products. Not following these instruc-
tions may cause malfunctions or property damage.
Tip
This symbol indicates notes that help you to handle the described products easier.
1.2 Information�about�this�User's�Manual
User's Manual K&F NOMOS XLC.
© Kling & Freitag GmbH, 2009, all rights reserved.
All specifications in this manual are based on information available at the time of publishing for the
features and safety guidelines of the described products.
Technical specifications, measurements, weights and properties are not guaranteed.
The manufacturer reserves the right to make product alterations within legal provisions as well as changes
to improve product quality.
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�this�manual�has�been�read,�understood�and�kept�readily
available�on�site.
We appreciate any input with suggestions and improvements for this manual. Please send this to us at
the following address:
[email protected] or to:
KLING & FREITAG GMBH Junkersstr.14 D-30179 Hannover.
Phone +49 (0) 511 - 96 99 70, Fax +49 (0) 511 - 67 37 94

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 5 of 18
2. Scope�of�Delivery
• Cardioid Bass Speaker NOMOS XLC
• User's Manual
3. System�Requirements�for�Use
K&F�CD�44�Digital�System�Controller
LAB.GRUPPEN�FP�10000Q:
Connector�Panel�CP�4
These�components�will�be�referred�to�as�'K&F�SystemRack'�in�this�manual.
4. Safety�Instructions
Warning
The information described here does not relieve the user of the duty to follow the given safety require-
ments and legal regulations.
The technicians responsible for assembling are responsible for the safe setup and use of the speaker
and guarantee this.
To prevent damage to persons and property, you must set up the speaker in compliance with the spec-
ifications of applicable national standards.
At least 2 people are necessary to carry the speaker.
The speaker is solely for professional use in the manner described here.
When laying out the connecting cables, make sure that nobody can trip.
If not otherwise stated in this manual, only original KLING & FREITAG parts may be used. The use of
other parts - in particular parts by other manufacturers - is not permitted.
For mobile and fixed installations, use only assembly equipment from KLING & FREITAG.
As a basic principle, you must visually inspect all components of the speaker before every use. For fixed
installations, you must inspect the speaker for signs of wear at regular intervals. If there are signs of
wear, cracks, or deformation, etc. then you must replace the parts immediately.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 6 of 18
4.1 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 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 10° 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.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 7 of 18
4.2 Protecting�the�Speakers�/�Operating�Safety
Caution
NOMOS XLC speakers may only be used in combination with a K&F SystemRack. See chapter [System
Requirements for Use] on page 5.
In general, audio signals should 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
• using the speakers without K&F 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 con-nected, 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.
Preventing�hearing�damage
Avoid beeing too close to operating speakers. Even loudness levels of approx. 90 dB - that you subjectively
judge as being low - can lead to hearing damage.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 8 of 18
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 sub-
woofers stacked on top of one another are
securely positioned in the grooves of the
lower speaker.
You must additionally secure vertically stand-
ing stacked NOMOS XLC systems from
falling since the structural safety is not guar-
anteed, otherwise.
6. Cardioid�Arrays�with�NOMOS�XLC
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.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 9 of 18
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 au-
dience.
When cardioid speakers are put on the floor, ensure that there is always a distance of at least 40 cm
between the speakers.
40 cm [1,3 ft]
40 cm [1,3 ft]

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2009 Revision 2.0 Page 10 of 18
6.2 Controller�setups�for�cardioid�use
The following cardioid or hypercardioid setups are available in the K&F CD 44. All setups with a cutoff
frequency other than 60Hz have a cutoff frequency of 100Hz.
Operation�Mode Chassis Controller�Setup
'Cardioid' front NOMXLC C-F
rear NOMXLC C-R
'Hypercardioid' front NOMXLC HC-F
rear NOMXLC HC-R
'Infrabass Cardioid' front NOMXLC C-F60Hz
rear NOMXLC C-R60Hz
'Infrabass Hypercardioid' Front NOMXLC HC-F60Hz
Rear NOMXLC HC-R60Hz
7. 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, and combine these
with the desired LS block for the NOMOS XLC.
• Then activate the 'Combi Mode' by switching on Filter B for the NOMOS XLC channel.
When�combining�with�SEQUENZA�10�N/W�tops,�Filter�B�(Combi�Mode)�may�not�be�switched�on!
In the CD 44 Hardware Manual, you will find a detailed description about connecting the SEQUENZA 10
speakers and the settings necessary on the System Controller CD 44. NOMOS XLC
8. 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).
8.1 Replacing�the�Fuses
The fuse holder is behind the rear chassis.
Replace the fuse with the following original fuse only:
Bussmann�S�506-8A