M.A.S Ferroviaire – Acoustic Expertise for Over 30 Years
Reliable, certified acoustic solutions designed for the most demanding environments.
A French manufacturer specialising in compressed-air warning horns for the railway sector and other industries. Building on more than 30 years of industrial heritage and recognised know-how, we design, manufacture and overhaul reliable products tailored to our customers’ needs.
Our Mission
To provide reliable, durable and standards-compliant acoustic solutions, while supporting our customers throughout their specific projects—from technical advice to the final product. We place strong emphasis on innovation, quality, and a personalised approach to service.
Our Vision
To be recognised as the leading French specialist in compressed-air warning horns, combining manufacturing tradition, technical expertise and innovation capability to meet the needs of the railway sector and related industries.
Company Milestones
1989
Creation of the Matexon Warning Company (SEAM)
2005
Foundation of M.A.S., specialising in the design and manufacture of warning horns dedicated to the railway sector.
2009
Approval of M.A.S. thermoplastic bell warning horns by SNCF
2017
Relocation of M.A.S. to Hyères
2022
ISO 9001 Certification – 2015 Version
"Manufacture and sales of compressed-air warning horns for the railway sector, heavy vehicles, industry and marine applications."

2024
Introduction of powder coating (thermocoating)
This evolution provides a more durable finish while reducing solvent use and pollutant emissions.


