The TSU-4400 is designed for models with higher stall currents such as some S, O, and large scale locomotives; this decoder features easy-to-use terminal blocks for no-fault wiring and a higher audio amplifier for awesome volume, indoors or out. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, injectors, power reverse, and firebox flicker. We also offer a large selection of selectable sound effects including: exhaust chuffs(10), prime movers (up to 12), bells (12), Whistles (90), airhorns (40+), couplers, dynamos and more!

This 4-amp, universal-style format decoder includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches.

Dimensions: 69 x 30.5 x 14mm 
Max. Motor Stall Current: 4A
Max. Function Current: 400mA (each output)
Function Outputs: 6
Audio Amplifier: 3 Watt, 8-Ohm Load
DCC Track Voltage: 7.5V – 26V
Sound Channels: 16