K&F 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 Version 4.1
Released: 18.06.2014

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 3 of 21
Table of contents
1Introduction 4
1.1 Symbols in User's Manual 4
1.2 Information about this User's Manual 4
2Scope of Delivery 5
3System Requirements for Use 5
4Safety Instructions 5
4.1 Safety Instructions for Stacked Setups 5
4.2 Protecting the Speakers / Operating Safety 7
5Stacking the Subwoofers 8
6NOMOS XLC combined with other K&F tops. 8
7Cardioid Arrays with CD 44 8
7.1 Setup instructions for a cardioid array 10
7.2 LSBlocks for cardioid useNOMOS XLC 11
8Fuse in the NOMOS XLC 12
8.1 Replacing the Fuses 12
9Connection 13
9.1 Terminal assignment 13
9.2 Cabling a K&F System Rack 14
9.3 Connecting the NOMOS XLC 15
10 Transport and Storage 16
11 Technical Specifications 16
12 Measuring Diagrams 18
13 Dimensions NOMOS XLC 19
14 Accessories 20
15 Disposal 21
15.1 Regulations for Disposal 21
15.1.1 Germany 21
15.1.2 EU, Norway, Iceland, and Liechtenstein 21
15.1.3 All other Countries 21

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 4 of 21
1. Introduction
Thank you for your decision to buy 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 please read the operating instructions carefully before use. With
the purchase of a NOMOS XLC, you have acquired a large sound system with the highest
possible quality and performance capabilities. 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 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.
This symbol gives instructions for the proper use of the described products. Not following
these instructions may cause malfunctions or property damage.
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 © 2014 Version 4.1 Page 5 of 21
2. Scope of Delivery
• Cardioid Bass Speaker NOMOS XLC
• User's Manual (1x)
3. System Requirements for Use
K&F CD 44 Digital System Controller
LAB.GRUPPEN FP 10000Q:
or
LAB.GRUPPEN FP 14000:
for high power configurations with
NOMOS subwoofer
Connector Panel CP 4:
These components will be referred to as 'K&F SystemRack' in this manual.
4. Safety Instructions
Warning
The speaker is solely for professional use in the manner described here.
To prevent damage to persons and property, you must set up the speaker in compliance with
the specifications of applicable national standards.
The information described here does not relieve the user of the duty to follow the given
safety requirements and legal regulations.
The technicians responsible for assembling are responsible for the safe setup and use of the
speaker and guarantee this.
For mobile and fixed installations, use only assembly equipment from KLING & FREITAG.
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.
As a basic principle, you must visually inspect all safety-relevant components of the speaker
and the accessory 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.
Caution
When laying out the connecting cables, make sure that nobody can trip.
At least 2 people are necessary to carry the speaker.
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.
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.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 6 of 21
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.
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 © 2014 Version 4.1 Page 7 of 21
4.2 Protecting the Speakers / Operating Safety
NOMOS XLC speakers may only be used in combination with a K&F SystemRack.
5System 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.
• 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
• using the speakers without K&F SystemRack
we do not assume warranty and excludes liability for possible consequential damage.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 8 of 21
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.
You must additionally secure vertically
standing stacked NOMOS XLC systems
from falling since the structural safety
is not guaranteed, otherwise.
6. 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. SEQUENZA
10 N/W
7. Cardioid Arrays with 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

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 9 of 21
• 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 © 2014 Version 4.1 Page 10 of 21
7.1 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.
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 (1m).
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]

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 11 of 21
7.2 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 60Hz have a cutoff frequency of 100Hz.
Operation Mode Chassis LSBlocks (NomXLC)
'Cardioid' front NomXLC C-F
rear NomXLC C-R
'Hypercardioid' front NomXLC H-F
rear NomXLC H-R
'Infrabass Cardioid' front NomXLC C-F60Hz
rear NomXLC C-R60Hz
'Infrabass Hypercardioid' Front NomXLC H-F60Hz
Rear NomXLC H-R60Hz

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 12 of 21
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, T 250V

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 13 of 21
9. Connection
The operating safety and the highest-possible performance is only guaranteed in conjunction
with the K&F Topas or K&F SystemRack.
9.1 Terminal assignment
2
-
2+1
-
1+ 2
-
2+1
-
1+
+
-
+
-
REAR SPEAKER
FRONT SPEAKERS
SPEAKON CONNECTORS
+
-

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 14 of 21
9.2 Cabling a K&F System Rack

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 15 of 21
9.3 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.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 16 of 21
10. Transport and Storage
The housing of the speaker is protected against short-term moisture by a coating. The
accessories has to be stored, transported and used in a dry enviroment. 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 that
possible 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.
11. Technical Specifications
Design Bass reflex system(Operations via K&F
SystemRack)
Crossover frequencies (2-Way-Mode / 60
Hz)
100Hz / 60 Hz
Lower cut-off frequency (-3 dB / -10 dB) 33 Hz / 28 Hz
Coverage Cardioid / Hypercardiod
Power handling (front / rear) 2000 W / 1000 W nominal1)
4000 W / 2000 W program2)
Max. SPL 140 dB (SPL Peak / 1 m / free field)
Components 3 x 18“ long excursion chassis, 100mm
voice
coil with double centring, internal and
external ven-
tilation, demodulation ring for minimal
distortion
Impedance (nominal) front / rear 4 Ohm / 8 Ohm
Connection 2 x Speakon 4-pin NLT4MP
front speakers: 1+ / 1- ,
rear speaker: 2+ / 2-
IN parallel into OUT
Enclosure Design 15 mm frame reinforced multiplex
plywood enclosure
with highly resilient Polyurea synthetic
black,
coating,
8 ergonomic butterfly handles,

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 17 of 21
8 plastic sliding feet, 8 stacking grooves
for
8 stacking grooves for save stackings of
identical enclosures,
4 x 100 mm rear mounted castors,
2 locking profiles for optional transport
cover,
ball-proof steel grilles with exchangeable
black acoustic foams behind grilles
Dimensions (W x H x D) 1200 x 600 x 903 (with castors)
Weight 95,0 kg / Transport Cover: 8,7 kg
Accessories see catalogue or visit www.kling-
freitag.de
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.

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 18 of 21
12. 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

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 19 of 21
13. Dimensions NOMOS XLC

User's manual K&F NOMOS XLC
KLING & FREITAG GMBH © 2014 Version 4.1 Page 20 of 21
14. Accessories
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.