Like all M.T.H. locomotives, our new ES44AC offers HO scale’s finest combination of detail, realism, and performance. Listen to the chant of an authentic GEVO-12 motor in the Proto-Sound 3 versions, and throttle down as low as three scale miles per hour so you can admire the details as the Evolution Series glides by: see-through fans and grilles, walkways with safety tread, flashing ditch lights, windshield wipers, body and truck air brake piping, and a host of other separately applied details. Activate the couplers from anywhere on the layout using any DCC controller or the DCS Digital Command System. For the ultimate in power and sound, operate these diesels in multiple-unit lashups under DCC, or DCS digital command control. If you’re running under the M.T.H. DCS system, you can double- or even triple-head the ES44AC with virtually any combination of 3.0 locomotives.