NEO PA/VA EN 54-16

The EN 54-16 public address and voice alarm system LDA NEO is a compact, all-in-one, cost-effective unit. Its plug-and-play philosophy reduces time and costs as it makes very simple the installation, maintenance, and operation of the system.

NEO represents cutting-edge technology in EN 54 PA/VA systems and uses innovations that ensure its viability in the present and in the future. NEO is the first EN 54-16 certified system to be manufactured in Spain, setting the precedent for others to follow.


Making the difference

More reliability and durability

Apart from being a certified EN 54-16 (0370-CPR-3261) system, NEO was made to last and to be highly reliable. It has high quality and durable components plus offers specific features that go way beyond the minimum requirements to obtain the certificate.

Easier to use, install and maintain.

NEO is a compact system with plug-and-play philosophy, that includes in just one equipment of 2U what normally other manufacturers require several items. NEO includes 8 amplifiers, a digital audio matrix (40x1024), line supervisor, back-up amplification, double message player with 4GB, HQ audio over Ethernet and a touch screen among other features.

Easier to scale

NEO is very easy to scale. Either locally, just by direct connection of NEO-Extension units with Ethernet cable or in a distributed way by using Ethernet switches.

More flexibility and integration options

NEO can be easily integrated and can communicate in an open way with third-party systems (by using UDP Ethernet commands, by RS-485 or contact closure relays).

HQ Audio over Ethernet

NEO natively includes audio over Ethernet, it can publish its audio inputs or receive up to 32 extra audio outputs from the network of very high quality audio (48Khz, 24 bits) in real-time without noticeable delay.

Web-based control

NEO allows a web-based remote and intuitive control from the data network. Thanks to SIME software, the operator in central control point can easily control and monitor several NEO systems.


Easy control and supervision at your fingertips.

Show Features

+Colour touch screen of 4,3”

It offers a fast and intuitive access to all the main functions of the system.

+Supervised emergency microphone
Integrated Push-to-talk (PPT) microphone of high quality and supervised (connection and capsule).

+Monitor Loudspeaker
The audio inputs in NEO or the audio routed to each zone can be monitored in real time with this built-in speaker.

+Dual pre-record message player
With an internal memory of 4GB, NEO can store hundreds of messages and play them manually or automatically. 2 different messages can be played at the same time in different zones.

+Internal Digital Audio Matrix
Digital Audio Matrix 40×1024, that allows a simultaneous and independent routing of any of the audio inputs to any of the zones.


8 class D amplifiers, built-in line supervision, audio over Ethernet, advanced integration ports and more.

Show Features

+ 8 class-D amplifiers built-in 
8 x 120W @ 100V allowing up to 8 independent zones with one piece of equipment.

+Back-up power supply connection
Connection with the EN 54-4 battery charger.

+Contact-closure interface with Fire Detection Panel.
12 supervised contact closure I/O and inputs per zone.

+8 outputs for attenuators control

24V output signals for deactivating automatically up to 32 LDA AT volume attenuators

+Line monitoring and built-in back-up amplification
NEO can detect open circuit or short-circuit in all its amplification lines and optionally, it can use its 8th amplifier as back-up for the rest.

+ACSI bus interface
It allows the connection of up to 8 remote devices in the ACSI bus, either MPS-8Z microphones or VA Panels VAP-1.

+8 EOL device inputs

Optionally, it is possible to connect EOL device inputs to detect any problem in the speakers line.

+ 5 balanced analogue audio inputs
Any of the audio inputs in NEO can be routed independently to each zone thanks to its internal digital audio matrix (40×1024). Additionally, NEO can receive up to 32 more audio inputs.

+ 14 GPIO for advanced integrations
Thanks to the advanced event generator included in the NEO Configurator software, it is possible to combine, with logic operations, GPIO signals in order to perform any action in the system.

+8 pre-amp audio outputs
8 audio outputs that duplicate the audio signal that is present or routed to each amplifier/zone.

+RS-485 interface for advanced integrations
NEO can easily send or receive RS-485 commands for creating advanced integrations with other systems.

+RS-485 interface for Fire Detection Panels
Specific RS-485 interface for advanced integrations with Fire Detection Panels.

+ Triple Ethernet port
It allows the reception and sending of Cobranet Digital Audio (up to 32 more audio inputs), a remote control and supervision, integrations by the use of UDP commands and the redundant connection with NEO Extension units.

Easily scalable with NEO-Extension units

The LDA NEO system can be easily scaled with NEO-Extension units that will add extra power and zones to the system.

NEO-Extension 8250


Amplification channels/Extra zones


Power per amplification channel (W)


Total max. power (W)

NEO-Extension 4250


Amplification channels/Extra zones


Power per amplification channel (W)


Total max. power (W)

NEO-Extension 4500


Amplification channels/Extra zones


Power per amplification channel (W)


Total max. power (W)


LDA NEO Extension 4250 is an extension controller and a 4x250W amplifier or 2x500W amplifier for the compact EN 54-16 PA/VA system NEO.
LDA NEO Extension 8250 is an extension unit for the EN 54-16 PA/VA system NEO.
LDA NEO Extension 4500 is an extension controller and a 4x500W amplifier or 2x1000W amplifier for the compact EN 54-16 PA/VA system NEO.
LDA NEO Extension 4500L is an extension controller and a 4x500W amplifier at 4 Ohms for the compact EN 54-16 PA/VA system NEO.

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AES67 Converter NEXO

AES67 network audio converter and ACSI v2 bus controller for connecting up to 32 MPS‑8Z, MPS-8Z+ or VAP‑1 devices.

Microphone MPS-8Z+

Multi-zone microphone with ACSI v2 protocol for connecting up to 32 devices on one bus.

Keyboard extension MPS-8K+

EN 54 expansion module for the MPS-8Z+ microphone with 8 programmable buttons in ACSI v2.

960 W battery charger for voice evacuation systems, EN 54-4 compliant.

3600 W battery charger for voice evacuation sytems, EN 54-4 compliant.

45 Ah @ 12 V battery for 960 W EQ241976 charger.

120 Ah @ 12 V battery for 3600 W EQ241977 charger.

Wall controller to select the audio source and change the volume in the zone where is located.

RJ-45 communication and power supply adapter for VCC-64.

Ethernet converter ZES-22 (only NEO systems)

Digital audio matrix with 4 I/O (configurable) and audio over Ethernet.

Dante-AES67 Converter Dante-16

Dante-AES67 digital audio converter to convert up to 16 channels.

Integration interface Direct Link

Device for integrating fire detection systems with NEO+ and NEO systems.

Fire brigade control panel VAP1-FES

EN 54 voice evacuation panel with advanced functionalities and status monitoring by zones.


EN 54 voice evacuation panel with 7-zone expansion keypad.

7 zones expansion VAP1-FES ERW 7Z

Expansion keypad with 7 zones and red IP30 housing.

14 zones expansion VAP1-FES ERW 14Z

Expansion keypad with 14 zones and red IP30 housing.

Network switch EN 54 SWT4E-2F

Enables the configuration of IP communication networks between EN 54 devices.

Media Converter

Enables configuration of IP communication networks between EN 54 devices.


High performance digital paging station with “all-call” button, busy line signal, auto-lock function and event button.

Keyboard expansion unit for the MPS-8Z microphone, it adds 8 extra programmable buttons.

High performance desktop microphone with lighting indicators and different operational modes.

Filtered load impedance to improve the accuracy of loudspeaker line measurement in 70/100 V lines.

Voice alarm panel that offers a remote and supervised control of the NEO’s VA features.

Keyboard expansion unit for the VAP-1 voice alarm panel, it adds 8 programmable buttons.

VAP-1EC Blank Block

Blank block for voice alarm panel VAP-1 that can be used both in rack and installed on the wall.

19″ and 4U cabinet with glass front door and lock, all blank panels and required accessories.

19″ and 6U cabinet with glass front door and lock, all blank panels and required accessories.

Red wall rack for VAP-1 EQ-242057

Wall cabinet for housing a VAP-1 microphone unit and a VAP-8K keyboard extension.

Multisource player RCD-21R

All-in-one multi-source audio player with USB and SD card.

AT Series Attenuators

Attenuators for high impedance public address lines of 70 or 100 V.

Suface mount back box for series AT attenuators

Box for surface mounting of AT series attenuators.


Multiple NEO systems can be connected in a data network and centrally controlled/supervised with SIME Control software. The system allows you to use NEO Control and SIME Control simultaneously.



NEO and NEO-E EN 54-16 PA/VA system


Certification EN 54-16


Discover all the features of NEO


Configuration, start-up and maintenance of NEO


All the available downloads for NEO products