This SoundTraxx TSU-2200 Tsunami2 Digital Sound & Control Decoder features a spectrum of prototypical sounds, 16-bit polyphonic sound processor, 14 hyperlight lighting effects and hyperdrive motor control with back-EMF. This 2-amp sound and DCC decoder is suitable for a wide variety of models from HO to S scale, and the TSU-2200 includes a connector to easily add a CurrentKeeper 678-810140 to maintain performance over dirty track and switches.