The exact specifications, as officially documented by MRC for some of its products, may vary from one resource to another.
Specifications listed here come from the product manuals and secondarily from other MRC resources.
This is a basic, low cost diesel sound decoder with prime mover, airhorn, and bell sounds.
Includes selectable sound for six prime movers:
This is a basic, low cost steam sound decoder with chuff, whistle, and bell sounds.
20 types of synchronized chuff sounds (including articulated).