NEXO P18-I Loudspeaker User Manual

June 16, 2024
NEXO

NEXO P18-I Loudspeaker

Product Information

Specifications

  • Product Model : DP6424-01a-DI
  • Type : P18-I
  • IP Rating : IP54
  • Conformity : Directive 2014/35/UE (Low Voltage Directive)
  • Applied Rules and Standards : EN 12100, EN 13155, EN 62368

Warnings and Precautions

  • Select screws and mounting location supporting 4 times the system weight.
  • Avoid exposing the system to excessive dust, vibrations, extreme cold or hot temperatures to prevent component damage.
  • Ensure the system is placed in a stable position to avoid accidental falls.
  • When using the system on a tripod, ensure the tripod’s specifications are suitable and the height does not exceed 1.40m/55. Do not move the tripod with the system in position.
  • Unplug connected cables before moving the system.
  • Power off the system before connecting or disconnecting any cables.
  • When switching on or off the installation, power on/off the amplifier last.
  • If working in cold temperatures, gradually raise the level to nominal value during the first few minutes of use to allow system components to stabilize.
  • Regularly check the condition of the system.

High Sound Pressure Levels
Exposure to very high sound pressure levels can cause permanent hearing losses. It is recommended to adhere to the following maximal exposures specified by the OSHA (Occupational Safety and Health Administration) American Agency:

Number of Hours Sound Pressure Level (dBA), Slow Response
90 92
95 97
100 102
105 110

115

Equipment Locations and Assembly

The P18-I speaker has 3 locations for hanging, 1 on the back and on both sides. The depth of the M10 thread is 14mm (0.55 inch).

To assemble on a distance rod or speaker stand

  1. Place the distance rod on the connector plate (M20) of the Sub.
  2. Put PLADAPT on P18-I.
  3. Put the assembly on the distance rod/monitor stand with a diameter of 35mm. It may require two people to handle P18.

Important guidelines for speaker stand assembly

  • The speaker stand must be rated for P18 weight.
  • The speaker stand must always be installed on a horizontal surface.
  • The stand height and footprint must be defined to prevent assembly collapse.
  • Ensure that the audience is not allowed within a safety area with a radius equal to or higher than the assembly height.
  • Test the steadiness of the assembly by pushing it in all directions.

Description
The P18-I is a compact full-range coaxial speaker. P18 HF Dispersion

  • Amplification : NXAMP4X2mk2 (1 per channel)
  • L18 : 1 per channel
  • L20 : Not authorized
  • NXAMP4X1mk2 (BRIDGED): Up to 2 per channel
  • NXAMP4X4mk2 : Up to 3 per channel

FAQ

  • Q: How should I select screws and mounting location for the system?
    A: Please select screws and mounting location supporting 4 times  the system weight.

  • Q: Can I expose the system to extreme temperatures?
    A: No, to reduce the risk of damaging components, do not expose the system to extreme cold or hot temperatures.

  • Q: Can I place the system on an unstable position?
    A: No, do not place the system in an unstable position as it could fall accidentally.

  • Q: How should I power on/off the system?
    A: When switching on the installation, power on the amplifier last. When switching the installation off, shut off the amplifier first.
    Q: What should I do if I work in cold temperatures?
    A: If you work in cold temperatures, progressively raise the level to nominal value during the first minutes of use to allow the system components to stabilize.

  • Q: How can I prevent hearing losses from high sound pressure levels?
    A: Exposure to very high sound pressure levels may cause permanent hearing losses. It is recommended to follow the specified maximal exposures and take breaks from exposure.

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

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.
  • 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.
  • 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

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

  •  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, ø 5 to 12 mm), supplied with a fixed cable 2 x 1.5mm2 section, 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 (1) Up to 2 per channel
L18 1 per channel (1) 1 per channel
L20 Not authorized 1 per channel

Recommended Powering Solution

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

P18 + Sub

Stage monitor applications with Subs (OMNI or CARDIO modes)

Front of house applications with Subs (OMNI or CARDIO modes)

HF DIRECTIVITY

  • The P18 speaker can be used in horizontal or vertical position.
  • The standard horn is a 60° – 60° HF dispersion. It’s easy to change the HF dispersion by adding a specific flange. 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

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

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.

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.

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.

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.

PNU-P18FLGPS
HF Dispersion Horn ‘PS’
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

The ArrayEQ allows to adjust the system frequency response in its lower range (see curves below, with different ArrayEq values):

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

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

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|  ctive mode  Ω LF,  Ω HF – Passive mode:  Ω

SPECIFICATIONS

Model P18- I
Components 1x Coaxial LF 1 ” Ω long excursion & Neodymium HF 4” – Ω
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 1.5mm2 section, length 4m.
Weight| 33 kg / 73 lb
**Dimensions| **

NEXO S.A.

References

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