Nexo ePS12-EN54 User manual

IP55




DP7298-01-DI
ePS12-EN54
User manual

TABLE OF CONTENTS
Page 2/ 20 ePS12-EN54
TABLE OF CONTENTS
TABLE OF CONTENTS___________________________________________________________________ 2
COMPLIANCE __________________________________________________________________________ 3
WARNINGS ____________________________________________________________________________ 4
EQUIPMENT ___________________________________________________________________________ 5
DESCRIPTION__________________________________________________________________________ 6
PRESET_______________________________________________________________________________ 7
HF DIRECTIVITY________________________________________________________________________ 8
CROSSOVER FREQUENCY_______________________________________________________________ 8
ACCESSORIES _________________________________________________________________________ 9
ARRAY EQ____________________________________________________________________________ 14
MAINTENANCE________________________________________________________________________ 15
TECHNICAL SPECIFICATIONS ___________________________________________________________ 17
USER NOTES _________________________________________________________________________ 19

COMPLIANCE
ePS12-EN54 Page 3/ 20
COMPLIANCE
ePS12-EN54 is certified EN54-24 by AFNOR Certification
Parc du Pré de la Dame Jeanne BP5 - FR 60128 PLAILLY France
Tel : [phone] Fax : [phone] email : [email protected] nexo-sa.com
EN54-24 :2008
Voice alarm loudspeaker for fire detection and fire alarm systems for buildings
DoP NX-0333-CPR-075633
Type B
Technical data and setup instructions included in this manual
ePS12-EN54

WARNINGS
Page 4/ 20 ePS12-EN54
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.
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 cations are adapted and that its height does not exceed
.
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
ePS12-EN54 Page 5/ 20
EQUIPMENT
On each side of the cabinet, two M6 with 80 mm pitch plus one M10 fittings will connect the ePS12-EN54 to accessories
(VNI-HCPL600, VNU-BUMP, VNU-HBRK600, or eyebolts).
The back of the speaker is fitted with 3x M6 (70mm pitch) to connect wallmount in both vertical and horizontal positions
(VNI-WM02).
2 pairs (In/Out) of 7.62 mm pitch screw terminal blocks. Cables from 0.75 mm2 to 3.31 mm2 (12 to 15 AWG) copper
section.
ePS12-EN54 with IPCov



DESCRIPTION
Page 6/ 20 ePS12-EN54
DESCRIPTION
→The ePS12-EN54 is a compact full-range 2 ways speaker
→Asymmetrical HF dispersion 
→ePS12-EN54 can be used alone or with eLS18 subwoofer
→The speaker is equipped with 2 pairs (In/Out) of screw terminal blocks, permissible cables from 0.75 mm2to 3.31 mm2
(12 to 15 AWG) copper section. Cable with maximum outside diameter of 11mm.
→To wire ePS12-EN54, slit the membrane of the grommet crosswise, pass the cable through and make the connection to the
screw terminals. Place the IPCOV.
→IP55: be careful to place the IPCOV correctly.
→Amplification
•The ePS12-EN54 speakers 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 ePS12-EN54 speakers and eLS18 subwoofers usable with each solution.
→
DTD +
DTDAMP4X0.7
DTD +
DTDAMP4X1.3
NXAMP4X1mk2
NXAMP4X2mk2
NXAMP4X4mk2
ePS12-EN54
1 per bridged
channels
Up to 2 per channel
1 per channel *
Up to 4 per channel
Up to 4 per channel
eLS18
1 per bridged
channels
1 per bridged
channels
2 per bridged
channels
1 per channel *
Up to 4 per channel
* Recommended powering solution

PRESET
ePS12-EN54 Page 7/ 20
PRESET
Please consult nexo-sa.com for NEXO TD Controllers firmware information.
For the ePS12-EN54, the following setups are available:
•ePS12 MAIN PA, 60-120kHz
•ePS12 MAIN PA, 85-120kHz.
•ePS12 MAIN PA, 120-120kHz.
ePS12-EN54
ePS12-EN54 + eLS18

HF DIRECTIVITY
Page 8/ 20 ePS12-EN54
HF DIRECTIVITY
→The ePS12-EN54 speaker can be used in horizontal or vertical position.
→
Place a flathead screwdriver in the space between the grille and
the cabinet to release the grille.
Remove the grille.
Remove the 4 screws at the front, 4 screws at the back that hold
the horn. Remove it.
Position the horn according to the desired HF dispersion.
Narrow aperture = widest Dispersion
Reassemble the assembly and replace the grille.
CROSSOVER FREQUENCY
→60 Hz: Full range application.
→85, 120 Hz: Use with eLS18.



ACCESSORIES
ePS12-EN54 Page 9/ 20
ACCESSORIES
WARNINGS
All ePS accessories are specifically rated in agreement with structural computations.
Never use other accessories when assembling ePS12-EN54 cabinets than the ones provided by NEXO: NEXO will decline
responsibility if any component is purchased from different supplier.
PROHIBITED: ePS12-EN54 below ePS12-EN54 or ePS12-EN54 below eLS18 without dedicated accessory
VNU-BUMP
LiftBar, can be used with VNI-WMADAPT.
Remove 2 screws on the top
Screw VNU-BUMP to ePS12-EN54 (use
only screws provided with VNU-BUMP).
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 ePS12-EN54
VNU-HBRK600
Horizontal Cradle, usable with:
VNI-CLADAPT.
VNI-WM380.
VNU-PLADAPT
Remove the M10 inserts from each side.
Place HBRK600 on ePS12-EN54, use only
fasteners provided. Tight properly.
Refer to the Product Data Sheet
VNI-WMADAPT
Wall mount adapter
Place VNI-WMADAPT on VNU-BUMP, use
only fasteners provided. Tight properly.
Refer to the Product Data Sheet

ACCESSORIES
ePS12-EN54 Page 11 / 20
VNI-CLADAPT
Ceiling Adapter, use with VNU-HBRK600.
Screw VNI-CLADAPT to the ceiling
(fasteners not provided).
Place the assembly on VNI-CLADAPT, use
the 2 guides. Tight with the fasteners
provided with VNI-CLADAPT.
Refer to the Product Data Sheet
VNU-PLADAPT
Pole adapter
Place VNU-PLADAPT on VNU-HBRK600,
use only fasteners provided.
Tight properly.
Refer to the Product Data Sheet
VNI-HCPL600
Coupler ePS12-EN54 under horizontal
eLS18
Refer to the Product Data Sheet

ACCESSORIES
Page 12 / 20 ePS12-EN54
VNI-WM380
Wallmount, usable with:
VNI-WMADAPT / VNU-BUMP
VNU-HBRK600
ePS12-EN54 / BUMP / WMADAPT
Place the assembly on VNI-WM380. Tight
with the fasteners provided with
VNI-WM380.
Refer to the Product Data Sheet
ePS12-EN54 / HBRK600
Place the assembly on VNI-WM380. Tight
with the fasteners provided with
VNI-WM380.
Refer to the Product Data Sheet

ACCESSORIES
ePS12-EN54 Page 13 / 20
VNI-WM02
Wall mount adapter 25kg max
Remove 2 of the 3 screws on the back.
Screw speaker plate to ePS12-EN54 (use
only screws provided with ePS12-EN54).
Place the speaker holder with ePS12-EN54
into wall bracket. Fix by tightening bolted
assembly.
Refer to the Product Data Sheet

ARRAY EQ
Page 14 / 20 ePS12-EN54
ARRAY EQ
The ArrayEQ allows to adjust the system frequency response in its lower range
(see curves below, with different ArrayEq values):
        






















        























MAINTENANCE
ePS12-EN54 Page 15 / 20
MAINTENANCE
NOTE:
Speakers and Grills can be sent back to NEXO for recycling
Driver access
Place a flathead screwdriver in the space between the grille and
the cabinet to release the grille.
Remove the grille.
Remove the 4 screws to access the LF driver.
Tightening torque: 3.5 Nm (Thread Locker: Loctite 242)
Remove the 4 screws at the back of ePS12-EN54 and the 4
screws that hold the horn. Remove it.
Tightening torque: 2.5 Nm (Thread Locker: Loctite 242)
To access the HF diaphragm, remove the 4 screws.
Tightening torque: 2.5 Nm
Reassemble the assembly and replace the grille.
LF: red (+) / black (-)
HF: orange (+) / grey (-)

MAINTENANCE
Page 16 / 20 ePS12-EN54
Spare parts
MARK
QUANTITY
REFERENCE
DESIGNATION
1
1
05EPS12EN54-UA
ePS12-EN54 complete grille Black
1
05EPS12EN54-UAPW
ePS12-EN54 complete grille White
2
1
05EBEPS12
ePS12 Cabinet Black
1
05EBEPS12-PW
ePS12 Cabinet White
3
1
05PAVEPS12
ePS12 Horn sub-assembly
1
05HPADE250-16
DE250 Driver HF 16 ohm
1
05NH25-16R/K
DE250-16 diaphragm (with screws)
4
1
05HPB12ND8

1
05HPB12ND8R/K
Recone Kit for HPB12ND8 (with screws)
5
1
05LOGNEXO3
Logo NEXO
6
2
05VXTSTHC1012N
HEADLESS Screw M10x12 Black (x10)
05VXTSTHC1012
HEADLESS Screw M10x12 White (x10)
7
7
05VXTCFX616N
VXFX 6x16 Black (x10)
05VXTCFX616
VXFX 6x16 White (x10)
8
2
05PASF-DG9E1
Grommet DG11 Ø15.5mm (x2)
05PASF-DG11PW
Grommet DG11 White Ø15.5mm (x2)









TECHNICAL SPECIFICATIONS
ePS12-EN54 Page 17 / 20
TECHNICAL SPECIFICATIONS
WITH NEXO ELECTRONICS
Model
ePS12-EN54
Frequency range (±6dB)
60 Hz 20 kHz
Sensivity 1W@1m
103 dB SPL Nominal
Peak SPL Level (1m)
133 dB Peak
Operating voltage
35 Vrms
Vertical Dispersion
+25°/-30°
Horizontal Dispersion:
50° to 100° asymmetrical
Crossover Frequency
60 Hz, 85 Hz, 120 Hz
Nominal Impedance
8 ohms
SPECIFICATIONS
Model
ePS12-EN54
Components
LF 12 Neodymium long excursion 8 ohms
HF 1.7 diaphragm 8 ohms
Material
Baltic birch plywood 15mm
Finish
Black or White structural paint (Custom RAL upon request)
Front finish
Black acoustic fabric fitted back steel front grille
Fittings
2x M6 and 1x M10 on the top and bottom for rigging accessories.
3x M6 on the back for rigging accessories (70mm pitch).
Connector
2 pairs (In/Out) of 7.62 mm pitch screw terminal blocks.
Cables from 0.75 mm2to 3.31 mm2(12 to 15 AWG) copper section.
Cable with maximum outside diameter of 11 mm.
Weight
18 kg / 40 lb
ID Classification
IP55 with IPCOV
Dimensions













TECHNICAL SPECIFICATIONS
Page 18 / 20 ePS12-EN54
DATA ACCORDING TO EN54-24 : 2008
Nominal Continuous Power
400 W
Operating Voltage
35 Vrms
Nominal Impedance
3 
Sensitivity 1W@4meters
78 dB
Max Continuous Sound
Pressure @4meters
104 dB SPL
Frequency Band
100
125
160
200
250
315
400
500
630
800
1000
Sound Pressure Level per
band / Total 1W @ 4 meters
(dBSPL)
66
67
64
68
66
64
65
65
66
63
61
Frequency Band
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
Sound Pressure Level per
band / Total 1W @ 4 meters
(dBSPL)
62
60
61
62
63
63
63
65
66
68
Sound Pressure Level per band / Total 1W @ 4 meters (dBSPL)
100 Hz à 10 kHz
78
Directivity
Frequency Band
500
1000
2000
4000
Horizontal directivity averaged per octave on-axis normalized -6 dB (Positive Angle)
75
50
50
40
Horizontal directivity averaged per octave on-axis normalized -6 dB (Negative Angle)
-75
-50
-50
-40
Vertical Directivity averaged per octave on-axis normalized -6 dB (Positive Angle)
90
65
60
40
Vertical Directivity averaged per octave on-axis normalized -6 dB (Negative Angle)
-80
-65
-40
-20
All above specifications are for free-field measurements.
Reference axis is the line orthogonal to the grill, intersecting the grill in the middle.
Reference plane is aligned on cabinet front grill.
Horizontal plan is perpendicular to the reference plane in the width direction.

USER NOTES
ePS12-EN54 Page 19 / 20
USER NOTES

user notes
Page 20 / 20 ePS12-EN54
NEXO S.A.

F-60128 PLAILLY
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
nexo-sa.com