Tsunami Digital Sound Decoders™

Tsu ·na ·mi (tsoo-nä´-me) n. A huge wave of sound caused by SoundTraxx’s top-of-the-line, slightly unpronounceable product!

The Tsunami sound system is SoundTraxx’s high-performance, onboard locomotive sound system. Tsunami Digital Sound Decoders integrate a full-featured sound system, Hyperlight™ lighting effects, Hyperdrive™ motor control, and a DCC decoder into a single package. It is compatible with the NMRA DCC Standards and Recommended Practices. While Tsunami is first and foremost a premium DCC sound decoder, it is also capable of operating on a DC, or 'analog' layout. Take your prized locomotive to visit a layout running with a conventional powerpack!

Tsunami Digital Sound Decoders are designed for installation inside your locomotive and come in a variety of sizes to suit all scales. They are available in steam or diesel versions, each featuring a full spectrum of prototype-specific sound effects.

At Tsunami’s core is a true 32-bit Digital Signal Processor (DSP) capable of executing over 120 million instructions per second. With this new level of performance, SoundTraxx was able to give Tsunami 14 functions, over 22 individual sounds, and 4 special effects. The motor controller received numerous enhancements as well, including the use of high-frequency PWM and load compensation. To keep the size down, only components available in highly miniaturized packages were selected for use in the Tsunami resulting in smaller form factors – and in some case, the smallest form factor available!

Real Locomotive Sounds

Tsunami's sounds are recorded by our sound engineers from real locomotives. Digital recordings from the actual prototypes, sometimes requiring travel to faraway places, are used to faithfully reproduce these sounds for you to enjoy in your favorite models!

Tsunami Digital SOund Decoders put you in the engineer's seat. Imagine, seeing and hearing your trains as they approach . . . coming around the bend, you signal the brakeman with a long blast, then three short toots. The brakes squeal as the train slows down and comes through this tight curve. At the yard limits, signal again, then ring the bell to clear the tracks as the train enters the station. The airpumps pound out a steady beat as it comes to a stop . . . whump! whump! whump! Let off some steam and open the injector valve while the passengers disembark. Your ears won’t believe these are just models!

Steam Sound Effects

Tsunami steam decoders can produce as many as 24 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! Fireman Fred has a few new things up his sleeve as well, as he works to keep the locomotive in prime operating condition. You can even customize how often you will hear Fred and his associated effects. The Auto-Exhaust™ feature may be set to accommodate different drive wheel sizes, and the cadence adjusted to correspond to a 2-cylinder, articulated or geared locomotive, or optionally use a cam for the perfect chuff.

Diesel Sound Effects

Each Tsunami diesel decoder includes over 14 digital sound effects for multiple airhorns, engine exhaust, bell, dynamic brakes, radiator fans and more. The engine exhaust notches up or down automatically in response to the throttle! The engine RPMs can be also be controlled independent of the throttle setting. Imagine a heavy freight lumbering up a stiff grade with the diesels thundering at notch 8!

Everything You Need, Nothing You Don’t

We’ve built all the sound effects that are fun, necessary and prototypical into each Tsunami, without the need for special hardware, software, or programming skills. You don’t have to be an electronics wizard, and you can select the sounds you want and adjust each decoder to suit your personal preferences without purchasing some special programmer at additional cost to you.

Tsunami Features
Tsuanmi Quick Reference Chart
Tsunami Sound Samples
Tsunami TSU-IM1000
Tsunami TSU-BW1000
Tsunami TSU-KT1000
Tsunami TSU-1000
Tsunami TSU-750
Tsunami TSU-AT1000
Tsunami TSU-GN1000
Retail Price List