SoundTraxx

06/18/2026

Get your railroad ready for large-scale season with SoundTraxx! Whether you run battery-powered locomotives, DC, or a full DCC layout, we have the sound solutions you need to bring your garden railway to life.

The Blunami BLU-4408 is perfect for large-scale locomotives, offering Bluetooth control, battery-powered operation, and easy setup through the intuitive Blunami App. Enjoy wireless operation, realistic sound, customizable lighting effects, and more—all from your smart device.

For DCC operators, the Tsunami2 TSU-4400 delivers powerful performance, premium sound quality, advanced motor control, and a full suite of realistic operating features.

No matter how you operate, SoundTraxx helps make your garden railroad more realistic, more immersive, and more fun.

Watch now and discover which decoder is right for your large-scale railroad!

06/18/2026

SoundTraxx Tsunami 2 decoder installed and layout ready.

06/18/2026

06/18/2026

GP40-2 421 rejoined the active roster this evening with a new Blunami decoder and Scale Sound Systems speaker. This is an Atlas model. This was an easy install since I had previously added the decoder buddy and current keeper! I’m planning on filming a full install soon as I have 2 still with original electronics and one stripped down for a motor replacement. We’re in the home stretch with sound upgrades!

06/17/2026

A stunning GP30-GP35 consist, equipped with Blunami and battery power. Learn more about Blunami decoders: soundtraxx.om/blunami

06/16/2026

Large-scale season is here! 🚂🌿

Whether you prefer battery power with Blunami or DCC operation with Tsunami2, SoundTraxx has the decoder to bring your garden railroad to life with realistic sound and control.

Watch the full video on YouTube and find the perfect decoder for your railroad:
https://youtu.be/nvlZbQUItvY

06/16/2026

One of the biggest mistakes modelers make is assuming their decoder can only do what it did when it came out of the box.

Factory settings are just the starting point.

From sound behavior and lighting effects to momentum, braking, airhorn control, and advanced operation features — SoundTraxx decoders are built to be customized for the way you run your railroad.

The more you learn, the more realistic and enjoyable your operation becomes. 🚂

Learn more. Blunami FAQ: DC/DCC Operation, Mode Switching, and App Customization: https://youtu.be/OPx6irVNcd0

06/15/2026

High headlight L-77 upgraded with Blunami from Gregg H at the Utah Museum.

Learn more about Blunami: soundtraxx.com/blunami

06/14/2026

"This is a pair of USA Trains SD70s upgraded with Blunami BLU-4408 boards and 18.5 6700mAh batteries, motors wired in series. Outside temp is 34 deg Celsius 93 deg Fahrenheit. Running flawlessly. Blunami is a strong and robust system!" - Winona Garden Railway

See them in action: https://youtu.be/j0odOaKKoBk?si=E-MxxdoUZ7YYPk64
Learn more about Blunami: soundtraxx.com/blunami

06/13/2026

George teaches how to install a Blunami decoder. In this short tip, he explains how he learned about electricity flow from his father.
Watch the Full Video on YouTube: https://youtu.be/C-_q51uCArE