ELECTRONIC SOLUTIONS ULM (ESU) from Ulm Germany produce innovative digital systems, decoders and accessories. They are renowned for their famous LokSound decoders that realistically produce prototype sounds of various locomotives. Available in DCC, Motorola, XL, MFX and Micro, top model train manufacturers incorporate these ESU LokSound modules in their prestige models. Of great interest is the new ECOS multi-format digital controller, with enormous power and features that stands in a class of its own.