DCC Specialties - Digitrax - ESU - Electronic Solutions Ulm - NCE DCC - NixTrainz - RR-CirKits - SBS4DCC - Streamlined Backshop - SPROG DCC - SoundTraxx - TCS - Train Control Systems - Tam Valley Depot - ZIMO DCC

SoundTraxx Tsunami2 Reactive Dynamic Digital Exhaust (DDE)