HO scale 16-bit dual-mode drop-in synchronized sound decoder with three prime mover sounds by Model Rectifier Corp (MRC).  Replaces the factory installed circuit board on many Atlas, Kato, Athearn, InterMountain and other locomotives (check the dimensions of your existing circuit board before ordering). Includes attached speaker. Easy programming. Complete illustrated installation instructions included.

Features:

• Directly replaces many Atlas, Kato, Athearn, InterMountain and other circuit boards
• 1.5 amp capacity
• 3 Synchronized prime mover sounds: Alco 539T, SD70, Electric Loco
• Easy function mapping
• 28 accessory functions (F1-F28)
• 7 accessory light effects (ditch, mars, gyra, strobe, prime strobe and on/off)
• User selectable 22 different horns and 8 bells
• Programmable individual sound volumes (16 levels)
• Programmable for either 2-digit (1-127) or 4-digit (1-9999) addresses
• Programmable start and top voltage
• Programmable acceleration and deceleration rates
• Programmable 14, 28/128 speed steps
• Back EMF load control
• Selectable factory default speed curve
• Advanced speed table control (CV67-CV94)
• Kick start voltage control (CV65)
• Supports read back address and CV value
• Supports advanced consisting (CV19)
• Supports programming on the main (OPS mode)
• Compatible with NMRA DCC standards
• Complies with Part 15 of FCC
• 18mm, 8-ohm on-board speaker included
• Dimensions: 73.0mm x 17.8mm x 7.7mm
• 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 MRC BlackBox (sold separately).