Nexo P18-I User manual

IP54
DP6424-01-DI
P18-I
User manual

TABLE OF CONTENTS
Page 2/ 20 P18-I
TABLE OF CONTENTS
TABLE OF CONTENTS___________________________________________________________________ 2
WARNINGS ____________________________________________________________________________ 3
EQUIPMENT ___________________________________________________________________________ 4
DESCRIPTION__________________________________________________________________________ 5
PRESET_______________________________________________________________________________ 6
HF DIRECTIVITY________________________________________________________________________ 8
CROSSOVER FREQUENCY_______________________________________________________________ 8
ACCESSORIES _________________________________________________________________________ 9
ARRAY EQ____________________________________________________________________________ 15
MAINTENANCE________________________________________________________________________ 16
TECHNICAL SPECIFICATIONS ___________________________________________________________ 18
USER NOTES _________________________________________________________________________ 19
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
P18
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, September, 2023
EN 12100, EN 13155, EN 62368
Joseph CARCOPINO, R&D Director

WARNINGS
P18-I Page 3/ 20
WARNINGS
PRECAUTIONS
-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.
When flying outdoor systems ensure that the system is not exposed to excessive wind or snow loads and is protected from rainfall.
In case of wind greater than 8 on Beaufort scale (72km/h 45mph), a touring system has to be landed or an additional securing has to be
implanted.
For fixed installations, wind loading has to be taken into account in accordance to the national standards
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.
- 
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/ 20 P18-I
EQUIPMENT
3 locations for hanging, 1 on the back and on both sides.
WARNING: The depth of the M10 thread is 14mm (0.55 inch).
Assembly on distance rod or speaker stand
Place distance rod on the connector plate (M20) of the Sub.
Place PLADAPT on P18-I.
Put the assembly on the distance rod / monitor stand (diameter
of 35mm).
It may take two to handle P18.
IMPORTANT
Speaker stand must be rated for P18 weight.
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
P18-I Page 5/ 20
DESCRIPTION
→The P18 is a compact full-range coaxial speaker
→P18 HF Dispersion:
•60° - 60° with standard horn
•90° 40° with PNU-P18FLG9040
•PS with PNU-P18FLGPS (Asymmetrical Dispersion)
→P18 can be used alone or with L20 subwoofer
→The speaker is equipped with a cable gland (clamping range, ø5 to 12 mm), supplied with a fixed cable 2 x 1.5mm2section,
length 4m, outside diameter 8mm ±1mm.
→(+) Red/Brown / (-) Black/Blue
→Amplification
•The P18 speakers must be used with a NEXO processor to handle EQ, phase alignment, crossover and
excursion/thermal protection for the system loudspeaker. There are two NEXO processor series supporting the P18
speakers: NXAMP (4 channels) amplified processors and DTD processors (stereo + sub). DTD processors ensure
optimal performances when used with DTDAMP power amplifiers.
•The following table shows the number of P18 speakers and L18 or L20 subwoofers usable with each solution.
NXAMP4X2mk2
NXAMP4X1mk2 (BRIDGED)
NXAMP4X4mk2
P18
1 per channel
Up to 2 per channel
Up to 2 per channel
L18
1 per channel
1 per channel
Up to 2 per channel
L20
Not authorized
1 per channel
Up to 2 per channel

PRESET
Page 6/ 20 P18-I
PRESET
Please consult nexo-sa.com for NEXO TD Controllers firmware information.
For the P18, the following setups are available:
→MAIN is the recommended setup for most FOH application, similar to previous firmware setup.
→MONITOR is recommended for monitor applications. Warning: this setup is a low latency setup and therefore its phase is not
compatible with other NEXO cabinets, including subs.
Preset
•P18 MON PA 6060, with high-pass at 50, 85 or 120 Hz.
•P18 MON PA 9040, with high-pass at 50, 85 or 120 Hz.
•P18 MON PA PSguide, with high-pass at 50, 85 or 120 Hz.
•P18 MAIN PA 6060, with high-pass at 50, 85 or 120 Hz.
•P18 MAIN PA 9040, with high-pass at 50, 85 or 120 Hz.
•P18 MAIN PA PSguide, with high-pass at 50, 85 or 120 Hz.
P18
Front of house and stage monitor applications

PRESET
P18-I Page 7/ 20
P18 + Sub
Stage monitor applications with Subs (OMNI or CARDIO modes)
Front of house applications with Subs (OMNI or CARDIO modes)

HF DIRECTIVITY
Page 8/ 20 P18-I
HF DIRECTIVITY
→The P18 speaker can be used in horizontal or vertical position.
→The standard horn is a 60° - Different
mounting possibilities and flange rotation allow to deal with every request.
Loosen the 3 screws, Remove the grille.
Remove the 4 HF Cap.
Place the flange, if necessary, rotate it.
Magnets keep the horn in place.
When replacing the grille, ensure it is well positioned in the top blade before fasten the hooks with the screws.
CROSSOVER FREQUENCY
→50 Hz: Full range application.
→85 Hz: Use as « front fill » on stage, complementing a main system. Use with a NEXO subwoofer, e.g. L20.
→120 Hz: For long throw applications.


ACCESSORIES
P18-I Page 9/ 20
ACCESSORIES
WARNINGS
All P18 accessories are specifically rated in agreement with structural computations.
Never use other accessories –including push-pins –when assembling P18 cabinets than the ones provided by NEXO: NEXO
will decline responsibility over the entire P18 accessory range if any component is purchased from different supplier.
PROHIBITED: P18 below P18 or P18 below L18 or L20 without dedicated accessory
VNU-BUMP (PNT-BUMP)
LiftBar, use with P18,
LIFTADAPT, WMADAPT.
Place VNU-BUMP on P18 (only use the
provided screws).
Tight properly
Refer to the Product Data Sheet.
VNT-TCBRK3551
Rotary Truss Clamp
Place VNT-TCBRK3551 on VNU-BUMP at
the desired hole.
Refer to the Product Data Sheet

ACCESSORIES
Page 10 / 20 P18-I
VNU-HBRK680
Horizontal Cradle, use with P18,
CLADAPT, PLADAPT.
Place HBRK680 on P18, use only fasteners
provided.
Tight properly.
Refer to the Product Data Sheet.
VNU-PLADAPT (PNT-PLADAPT)
Pole adapter, use with P18,
HBRK680, VBRK18.
Place VNU-PLADAPT, use only fasteners
provided.
Tight properly.
Refer to the Product Data Sheet.

ACCESSORIES
P18-I Page 11 / 20
PNU-VBRK18
Vertical Cradle, use with
CLADAPT, PLADAPT.
Place VBRK18 on P18, use only fasteners
provided.
Tight properly.
Refer to the Product Data Sheet.
VNI-WMADAPT (PNT-WMADAPT)
Adapter, use with
VNU-BUMP, VNI-WM450.
Refer to the Product Data Sheet.

ACCESSORIES
Page 12 / 20 P18-I
VNI-CLADAPT (PNI-CLADAPT)
Ceiling adapter, use with
VNU-HBRK680, PNU-VBRK18.
Screw CLADAPT to the ceiling (fasteners
not provided).
Place the assembly on CLADAPT, use
the 2 guides. Tight with the fasteners
provided with CLADAPT.
Refer to the Product Data Sheet.
PNI-P18TOL18
PNI-P18TOL2L18
P18 Under 1xL18
P18 Under 2xL18 (Omni or Cardio)
Refer to the Product Data Sheet.

ACCESSORIES
P18-I Page 13 / 20
PNI-P18TOL20
PNI-P18TO2L20
P18 Under 1xL20
P18 Under 2xL20 (Omni or Cardio)
Refer to the Product Data Sheet.
VNI-WM450
Wallmount for P18, use with WMADAPT.
Mount the wall plate. Place the arm in
the wall plate.
Lock with the provided screw.
Refer to the Product Data Sheet.

ACCESSORIES
Page 14 / 20 P18-I
PNU-P18FLGPS

Remove the grille, remove the flange to
place the PNU-P18FLGPS.
If it necessary, rotate it. Magnets keep
the horn in place.
Refer to the Product Data Sheet.
PNU-P18FLG9040
HF Dispersion Horn 90° - 40°
Remove the grille, remove the flange to
place the PNU-P18FLG9040.
If it necessary, rotate it. Magnets keep
the horn in place.
Refer to the Product Data Sheet.



ARRAY EQ
P18-I Page 15 / 20
ARRAY EQ
The ArrayEQ allows to adjust the system frequency response in its lower range
(see curves below, with different ArrayEq values):
        






















        























MAINTENANCE
Page 16 / 20 P18-I
MAINTENANCE
Driver access
Loosen the 3 screws, Remove the grille.
Remove 8 screws.
Tightening torque: 3.5 Nm (Thread Locker: Loctite 242)
Remove the stickers.
Remove the 2 screws.
Tightening torque: 2.5 Nm (Thread Locker: Loctite 222)
Remove the horn.
To access to the HF diaphragm, remove 4 screws.
Tightening torque: 2 Nm


MAINTENANCE
P18-I Page 17 / 20
Spare parts
MARK
QUANTITY
REFERENCE
DESIGNATION
1
1
05P18UAI
P18 I & TIS COMPLETE GRID BLACK
1
05P18UA-IPW
P18 I & TIS COMPLETE GRID WHITE
2
2
05RUBGRD01
Plastic Pad Black
2
05RUBGRD01-PW
Plastic Pad White
3
1
05HPC18
HP18" COAXIAL NEODYNIUM 8 - 8 Ohms
1
05HPC18R/K
HPC18 RECONE KIT
4
1
05NHP18R/K
HF DIAPHRAGM 4" - 8 Ohms with screws
5
4
05CAPB01
HF cap black
4
05CAPB01-PW
HF cap White
NOTE:
Speakers and Grills can be sent back to NEXO for recycling






TECHNICAL SPECIFICATIONS
Page 18 / 20 P18-I
TECHNICAL SPECIFICATIONS
P18-I WITH NEXO ELECTRONICS
Model
P18-I
Frequency range (±6dB)
50 Hz 20 kHz
Peak SPL Level (1m)
140dB Peak (Passive mode) / 142dB Peak (Active mode)
Operating voltage
55 Vrms (180 Vpeak)
HF dispersion
(according to horns)
60°x60° - 90°x40° - Asymmetrical Dispersion 60° to 100°x40°
Crossover Frequency
50Hz 85 Hz 120 Hz
Nominal Impedance
 
SPECIFICATIONS
Model
P18-I
Components
- 
Material
Baltic birch / Poplar plywood
Finish
Black or white structural paint
Front finish
Black or white acoustic fabric fitted front steel front grille
Fittings
Threated inserts on the back and on both sides for connection of mounting
accessories
Connector
Cable gland, supplied with a fixed cable 2 x 1.5mm2section, length 4m.
Weight
33 kg / 73 lb
Dimensions





 






USER NOTES
P18-I Page 19 / 20
USER NOTES

Page 20 / 20 P18-I
NEXO S.A.

F-60128 PLAILLY
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
nexo-sa.com