Nexo L15 User manual

DP3950-01-DI
L15
User manual

TABLE OF CONTENTS
Page 2/ 14 L15
TABLE OF CONTENTS
TABLE OF CONTENTS___________________________________________________________________ 2
WARNINGS ____________________________________________________________________________ 3
EQUIPMENT ___________________________________________________________________________ 4
DESCRIPTION__________________________________________________________________________ 5
PRESET_______________________________________________________________________________ 6
ACCESSORIES _________________________________________________________________________ 8
ARRAY EQ_____________________________________________________________________________ 9
MAINTENANCE________________________________________________________________________ 10
TECHNICAL SPECIFICATIONS ___________________________________________________________ 12
USER NOTES _________________________________________________________________________ 13
EU Conformity declaration
We,
NEXO SA
ZA DU PRE DE LA DAME JEANNE
60128 PLAILLY –France
Declare under our sole responsibility that the product
Type
Serial number
Loudspeaker
L15
On the product
Is in conformity with the provisions of the following directive
including all applicable amendments:
2014/35/UE (Low Voltage Directive)
Applied rules and standards:
Plailly, June 12th, 2019
EN 13155, EN 62368
Joseph CARCOPINO, R&D Director

WARNINGS
L15 Page 3/ 14
WARNINGS
PRECAUTIONS
Do not open the speaker, do not try to disassemble it neither to modify it in any way. The system doesn’t include any user-
repairable part.
If the system seems to be malfunctioning or damaged, stop using it at once and have it repaired by a NEXO qualified technician.
Do not expose the system directly to the sun or to the rain, do not immerse it into fluids, do not place objects filled with liquid on the
system. If a liquid gets into the system, please have it inspected by a NEXO qualified technician.
The connection should be performed by qualified technician, by ensuring that power is off.
Operating temperature with temperate climate: 0°C to +40°C (+32°F to +104); -20°C à +60°C (-4°F to +140°F) for storage.
SAFETY INFORMATIONS
Read this manual before using the speaker.
Keep this manual available for further reference.
Observe all warnings and cautions.
Please check the NEXO Web site nexo-sa.com to get the most up-to-date version of this manual.
Ensure you are aware of the safety rules applying to rigging, stacking or installing on tripod or speaker stand. Failure to observe
these rules may expose persons to potential wounds or even death.
Only use the system with accessories specified by NEXO.
Please always consult a NEXO-accredited technician if the installation needs architectural works and observe following precautions:
Mounting Precautions:
- Please select screws and mounting location supporting 4 times the system weight.
- Do not expose the system to excessive dust, vibrations, to extreme cold or hot temperatures, to reduce the risk of
damaging components.
- Do not place the system in an unstable position: it could fall accidentally.
- If the system is used on a tripod, please ensure the tripod’s specifications are adapted and that its height does not exceed
1.40m/55”. Do not move the tripod with the system in position.
Connection and Powering Precautions:
- Unplug connected cables before moving the system.
- Power off the system before connecting the system.
- When switching on the installation, the amplifier must be powered last; when switching the installation off, shut off the
amplifier first.
- If you work by cold temperatures, progressively raise the level to nominal value during the first minutes of use, to allow the
system components to stabilize.
Please check regularly the system condition.
HIGH SOUND PRESSURE LEVELS
Exposure to very high sound pressure levels may cause permanent hearing losses. Degrees of hearing losses may be different
from one person to another, but almost everybody will be affected if exposed to high sound pressure levels during a long period of
time. The OSHA (Occupational Safety and Health Administration) American Agency specified the following maximal exposures:
Number of Hours
Sound Pressure Level (dBA),
Slow Response
8
90
6
92
4
95
3
97
2
100
1 ½
102
1
105
½
110
¼ or less
115
WASTE OF ELECTRIC OR ELECTRONIC EQUIPMENT
This symbol on the product or its packaging indicates that this product must not be treated as household waste.
Instead, it is your responsibility to hand it over to a designated collection point for the recycling of waste
electrical and electronic equipment. By ensuring your waste equipment is recycled, you will help prevent
potential negative consequences for the environment and human health, which could appear if this product was
not recycled. Recycling helps spare natural resources. For more information about the recycling of this product,
please contact your local city office, your household waste disposal service or your reseller.

Equipment
Page 4/ 14 L15
EQUIPMENT
3 locations for hanging, 1 on the top for speaker stand and on both side.
Assembly on distance rod or speaker stand
Place distance rod on the connector plate (M20) of the Sub.
Place the main cabinet on the distance rod / monitor stand
(diameter of 35mm),
IMPORTANT
Speaker stand must be rated for the weight of the main cabinet.
Speaker stand must always be installed on a horizontal surface.
Stand height and footprint must be defined to prevent assembly
from collapsing.
Ensure that audience is not allowed within a safety area which
radius is equal or higher than assembly height.
Test steadiness of the assembly by pushing in all directions.

DESCRIPTION
L15 Page 5/ 14
DESCRIPTION
The L15 is a compact and powerful subwoofer, ideally complementing P12 speakers
The L15 subwoofer is equipped with two Speakon NL4 connectors, with parallel-wired pins,
L15 uses the 1+/1- pins, (2+/2- through).
Amplification
•The L15 subwoofer must be used with a NEXO processor to handle EQ, phase alignment, crossover and
excursion/thermal protection for the system loudspeaker.
•The following table shows the number of P12 speakers and L15 subwoofers usable with each solution.
NXAMP4X1
NXAMP4X1(BRIDGED)
NXAMP4X2
NXAMP4X4
P12
-
Up to 2 per channel
Up to 2 per channel
Up to 4 per channel
L15
-
1 per channel
Up to 2 per channel
Up to 2 per channel

PRESET
Page 6/ 14 L15
PRESET
Please consult nexo-sa.com for NEXO TD Controllers firmware information.
There are two setting range for surrounding speaker L15:
“OMNI” Setups; For a traditional use of the subwoofer in omnidirectional radiation (require at least one subwoofer and a
channel of amplifier).
•Omnidirectional Main setup, with low-pass at 85 or 120 Hz.
•Omnidirectional Monitor setup, with low-pass at 85 or 120 Hz.
“CARDIO” Setups; For a directional use (cardioid) of subwoofers (require at least two subwoofers and two channels of
amplifier).
•Cardioid back and front setups, with low-pass at 85 or 120 Hz.
- Setup « FR » (Front) for the subwoofer pointed at the audience.
- Setup « BA » (Back) for the subwoofer turned around.
•The ideal ratio for a directional use is 2x L15 in CARDIO FRONT mode on top of 1x Reversed L15 in CARDIO BACK
mode. From 1:1 to 3:1 ratio can be used.
OMNI Assembly
CARDIO Assembly

PRESET
L15 Page 7/ 14
With P12 in stage monitor
Box
Stage monitor applications with Subs (OMNI or CARDIO modes)
With P12 in front of house
Front of house applications with Subs (OMNI or CARDIO modes)

ACCESSORIES
Page 8/ 14 L15
ACCESSORIES
WARNINGS
All L15 accessories are specifically rated in agreement with structural computations.
Never use other accessories –including push-pins –when assembling L15 cabinets than the ones provided by NEXO: NEXO
will decline responsibility over the entire L15 accessory range if any component is purchased from different supplier.
All GEOM12 accessories have been designed so that cabinet are arrayed vertically.
PROHIBITED: L15 below L15 or P12 below L15 without dedicated accessory
LNT-HBRK15
Horizontal cradle, use with L15, CLADAPT
PNI-CLADAPT
Ceiling Adapter, use with HBRK15
LNT-WB15
Wheelboard
LNT-COV15: COVER FOR L15 ON WHEELBOARD

ARRAY EQ
L15 Page 9/ 14
LNT-2CASE15
Flight case for 2x L15
ARRAY EQ
The ArrayEQ allows to adjust the system frequency response in its lower range
(see curves below, with different ArrayEq values):

MAINTENANCE
Page 10 / 14 L15
MAINTENANCE
Grille Changing: Remove 8 screws
15’’ Driver
1
Remove 20 screws
2
Remove the trap
3
Remove 8 screws, 2 inside with a curved screwdriver.
4
Remove the driver.

MAINTENANCE
L15 Page 11 / 14
Spare parts
MARK
QUANTITY
REFERENCE
DESIGNATION
1
1
05DOUILM20N
Connector Plate M20 Black (with fasteners)
1
05DOUILM20W
Connector Plate M20 White (with fasteners)
2
1
05L15UA
Complete grille Black (with fasteners)
1
05L15UA-PW
Complete grille White (with fasteners)
3
4
05AMPLAVER02
Wheelboard attachment Black (with fasteners)
4
05AMPLAVER02-PW
Wheelboard attachment White (with fasteners)
4
2
05PATIN01
Rubber Skid Black (with fasteners)
2
05PATIN01-PW
Rubber Skid White (with fasteners)
5
1
05HPB15-4
15’’ Driver (with fasteners)
1
05HPB15-4R/K
Recone kit (with fasteners)
6
1
05CNX01
Connection plate Black without lexan (with fasteners)
1
05CNX01-PW
Connection plate White without lexan (with fasteners)
6a
1
05LEXCNX-L15
Lexan CNX L15 Black
1
05LEXCNX-L15PW
Lexan CNX L15 White
6b
2
05CNXNL4MDV-1
Speakon NL4 MDV1

TECHNICAL SPECIFICATIONS
Page 12 / 14 L15
TECHNICAL SPECIFICATIONS
L15 WITH NEXO ELECTRONICS
Model
L15
Frequency range (±6dB)
40Hz –120Hz
Peak SPL Level (1m)
139 dB Peak
Operating voltage
55Vrms (150Vpeak)
Crossover Frequency
85Hz; 120Hz
Nominal Impedance
4Ω
SPECIFICATIONS
Model
L15
Components
1x 15’’ – 4 ohms –Long excursion –Neodymium driver
Material
Baltic birch / Poplar plywood
Finish
Black or white structural paint
Front finish
Steel front grille
Fittings
Handles on both sides
Threated inserts on both sides for connection of mounting accessories
Stand fitting M20
Connector
2x NL4, 4 poles connectors
Weight
34 kg / 75 lb
Dimensions

USER NOTES
L15 Page 13 / 14
USER NOTES

Page 14 / 14 L15
NEXO S.A.
F-60128 PLAILLY
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
nexo-sa.com