MRC HO scale 1.5 amp drop-in dual-mode (DCC/DC) synchronized diesel sound decoder for Atlas Alco S2/S4 locomotives. Installation requires minor modification (filing) to the locomotive's top weight, and simple four wire soldering to the wheel pickups. includes on-board speaker. Easy programming. Complete illustrated instructions included.

Features:

• Replaces Atlas S2/S4 PC board
• 1.5 amp capacity
• Synchronized ALco turbo-charged prime mover sounds with random associated locomotive sounds
• 28 accessory functions (F1-F28)
• Programmable for either 2-digit (1-127) or 4-digit (1-9999) addresses
• Programmable start voltage and top voltage
• Programmable acceleration rate and deceleration rate
• Programmable 14, 28/128 speed steps
• Directional lighting (F0) with included sunny while LEDs
• Programmable user selectable different horns and bells
• 28 accessory functions (F1-F28)
• Supports advanced consisting (CV19)
• Supports programming on the main (OPS mode)
• Compatible with NMRA DCC standards
• Complies with the part 15 of FCC regulations
• 18mm on-board speaker
• Dimensions: 110.0mm x 18.0mm x 9.8mm
• MRC warranty

Dual Mode operates on a standard DC power pack to give you synchronized engine sound (only). To access all sound functions with DC, use the unique MRC BlackBox (sold separately).