Boost the realism of your model railroad with SoundTraxx Tsunami2 TSU-4400 sound decoders, now available at TrainSupply. These advanced DCC sound boards deliver rich, detailed locomotive audio — including horns, bells, engines, and auxiliary effects — along with expanded function outputs for more sophisticated installs.
The TSU-4400 series is designed for hobbyists who want powerful audio performance and enhanced control flexibility across a variety of scales and locomotive types. With responsive throttle behavior and immersive sound profiles, these decoders help bring your engines to life.
Explore Related Tsunami2 Decoder Options
Pair With Speakers & Audio Accessories
Installation & Wiring Support
Why TrainSupply TSU-4400 Decoders
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Expanded function outputs for complex installations.
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Rich, immersive audio effects including horns, bells, and engines.
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In-stock and ready to ship with fast delivery and expert support.
Browse the SoundTraxx Tsunami2 TSU-4400 sound decoders collection to find a high-performance audio board that matches your locomotive’s needs. Pair with speakers and installation components to complete your sound system with confidence.
