BACHMANN, B&O #7628, LATER SMALL DOME EM-1 2-8-8-4 LOCO W/DCC/SOUND, N SCALEB&O #7628 LATER SMALL DOME EM 1 2 8 8 4 DCC SOUND VALUE An articulated engine that provided tremendous power at high speeds, the EM 1 was ideal for hauling passengers and heavy loads of coal up and down the Appalachian Mountains. It joins our N scale Spectrum line equipped with an Econami SoundTraxx steam package. Factory set for EM 1 realism, the steam package offers a choice of 16 whistles, multiple variations of 6 bell types, 4 prototypical chuffs,