MRC is excited to release another breakthrough in N-Scale sound: the #0001808 Dual-Mode, Diesel Sound Decoder for Kato’s SD80 and SD90/43MAC locomotives. Taking miniaturization and MRC’s industry leading technology to the limit, this DCC/DC sound decoder is 100% drop-in! The simplest N-Scale installation imaginable: Remove the loco body, lift out the factory circuit board and replace with the MRC sound decoder /speaker combo, put the body back on. No wiring needed. The decoder is equipped with MRC’s world renowned Brilliance sound, miniaturized to a single drop-in decoder with included super-fidelity speaker, that’s virtually plug-n-play. MRC’s true, live capture, full fidelity sound including diesel rumbles, actually recorded by MRC’s Sound Engineers from real diesel locomotive prime movers. Just imagine… all 28 NMRA available functions, and naturally, MRC makes available (33) horns, eight-bells, brakes, air releases, pop valves, cooling fans, coupling sounds and more. Directional lighting is included too. MRC hasn’t forgotten power pack users! This MRC decoder is dual-mode so DC railroaders can get brilliantly synchronized diesel rumble sounds on their layout as well. And, DC power pack users can also enjoy the full capability of the #0001808 when coupled to MRC’s unique & exclusive BlackBox (#0001050 – Sold Separately) control unit. NOTE: Locomotive NOT included.