TSU-750 Micro-Tsunami® Digital Sound Decoder

The incredibly small Micro-Tsunami provides waves of pure 16-bit digital sound that will delight your senses; with effects so amazing you won't believe your ears. This little sound system is so complete, yet sacrifices nothing!

Micro-Tsunami's sound features are matched only by its superior motor control and brilliant lighting effects, making it unsurpassed in its technological capabilities. A 32-bit digital signal processor provides the necessary horsepower Tsunami needs to support a multitude of functions, sound effects, and advanced motor control features, and yet, measures just 25.5mm x 13mm x 5.5mm.

Small Size, Big Features

Micro-Tsunami steam decoders can produce over 22 sound effects, including the bell, whistle, airpump, dynamo, snifter valve, injectors, firebox blower, side rod clank, brake squeal, exhaust chuff and more. Pull up to the water tank and activate the Water Stop effect -- a steam engine won't get far without water! Fireman Fred has a few new things up his sleeve as well, as he works to keep the locomotive in prime operating condition. Use the Auto-Exhaust™ feature to adjust the exhaust cadence to correspond to a 2-cylinder, articulated or geared locomotive or use a cam if you prefer.

The diesel version can produce over 14 sound effects, including the engine startup and shutdown, engine prime mover through all eight notches, bell, airhorn, air compressor, dynamic brakes, radiator fans, brake squeal, and more.

Micro-Tsunami goes several steps beyond ordinary sound generators. It is so powerful that it comes with special effects processors -- the Equalizer, Sound Mixer, Dynamic Digital Exhaust (steam version), and Reverb. It's like having a complete sound studio at your fingertips!

Brilliant Lighting Effects

Micro-Tsunami includes two outputs for our Hyperlight™ lighting effects to reproduce the most popular warning beacons.

Advanced Motor Control

We designed Hyperdrive™ technology into the Micro-Tsunami, resulting in smooth and precise locomotive operation. Hyperdrive includes many features, such as high-resolution speed steps, high-frequency PWM drive, and torque control, all designed to improve the running characteristics of your locomotive.

Prototypical Operation

With the press of a key on your DCC controller, you can blow horns and whistles, ring the bell, and watch the headlight sputter to life as the power builds up. The more functions your controller has, the more fun you'll have!

Sound Samples

Select the links below to play a sound sample, and see a list of applicable prototypes and whistles/airhorns.

Steam Models

P.N. Description
826001 TSU-750 Light Steam
826002 TSU-750 Medium Steam
826003 TSU-750 Heavy Steam
826004 TSU-750 D&RGW K-Class
826005 TSU-750 SP Cab Forward
826016 TSU-750 D&RGW C-Class
826020 TSU-750 Light Logging


Diesel Models

P.N. Description
827001 TSU-750 EMD 567
827002 TSU-750 EMD 645
827003 TSU-750 EMD 710
827004 TSU-750 ALCO 244
827008 TSU-750 Fairbanks-Morse
827010 TSU-750 RGS Galloping Goose
827011 TSU-750 ALCO 539
827012 TSU-750 ALCO 539T
827014 TSU-750 GE Cummins Diesel Switcher
827015 TSU-750 GE GTEL (UP Turbine)
827018 TSU-750 Dual EMD 567 (E Units)


Tsunami Features
Tsunami Quick Reference Chart
TSU-750 Data Sheet
CurrentKeeper Installation Instructions for the TSU-750
Tsunami Sound Samples
Tsunami Manual
Retail Price List