Doehler & Haass Steuerungssysteme GmbH & Co. KG

About Doehler & Haass

Doehler & Haass Steuerungssysteme GmbH & Co. KG has been developing, producing and distributing components for the digital control of model railway layouts since 1975. The product range includes locomotive and vehicle decoders, vehicle sound decoders, its own digital control system (SelecTRIX) with programmers, feedback modules, function decoders, braking modules and power supplies, as well as matching software. The products support all common model railway standards such as SX1, SX2, DCC, MM, ABC and RailCom and, in addition to the company's own distribution, are installed by renowned manufacturers in their components (OEM business), historically including TRIX. A specially developed ASIC made it possible as early as 1984 to produce what was then the world's smallest locomotive decoder; the motor control (Super-Soft-Drive/SSD) has been continuously developed ever since. Almost all of the system components offered are manufactured in Germany, with particular attention paid to high-quality materials and careful workmanship. Sales are via specialist retail as well as direct distribution; this is complemented by software updates, sound project downloads, customer service and repair processing.

Site

Pliening

Processes

Development, production and distribution of digital control components for model railway layouts, OEM manufacturing for renowned manufacturers, free software updates for several years, free download of sound projects, customer service and repair processing, distribution via specialist retail and direct sales by e-mail, loan of programmers on request, five-year manufacturer's guarantee for private end consumers

Materials

Own-developed custom integrated circuit (ASIC)

Founded

1975

Industries

Model making / model railway hobby sector, OEM model railway manufacturers

1. 01

   Development

2. 02

   Production in Germany

3. 03

   Distribution via specialist retail and direct sales

4. 04

   Customer service and repair processing

Materials and Processes

Sites

History

1. 1975

   Foundation and start of the development, production and distribution of components for the digital control of model railway layouts

2. 1982

   TRIX presented the SelecTRIX digital system with load control developed by Doehler & Haass as the first volume manufacturer

3. 1984

   With a specially developed ASIC, production of what was then the world's smallest locomotive decoder

4. 2020

   Adolf Haass (1944–2020), co-founder and namesake, passed away