Tsunami2 Sound Decoders – TSU-BH2 from SoundTraxx are premium digital sound decoders designed as a direct board-replacement upgrade for select Bachmann Sound Value HO scale steam locomotives. Built on the advanced Tsunami2 Digital Sound Decoder platform, the TSU-BH2 delivers highly realistic steam sound, refined motor control, and improved operational reliability.
Bachmann Sound Value Steam Board Replacement
The TSU-BH2 is engineered specifically to replace the factory sound board found in Bachmann Sound Value steam locomotives. This board-replacement design provides a clean upgrade path for popular Bachmann steam models while significantly improving sound quality, motor performance, and feature depth compared to the original Sound Value electronics.
Advanced Tsunami2 Steam Sound Performance
Powered by Tsunami2 sound technology, the TSU-BH2 produces rich, dynamic steam audio with multiple exhaust chuffs, whistles, bells, air pumps, and auxiliary effects. Sound behavior responds naturally to throttle changes and load conditions, creating a more realistic steam locomotive experience.
Refined Motor Control & Reliable Operation
Tsunami2 TSU-BH2 decoders provide smooth starts, excellent low-speed performance, and consistent motor response. The decoder includes support for adding a CurrentKeeper-style energy storage device to help maintain sound and motor operation over dirty track, turnouts, and brief power interruptions.
LED-Friendly Lighting & Function Outputs
The TSU-BH2 includes multiple LED-friendly function outputs, allowing LEDs to be connected directly without external resistors. Lighting effects can be customized and mapped to support headlights, cab lighting, firebox flicker, marker lights, and other steam-specific effects depending on the locomotive configuration.
Speaker & Installation Accessories
A compatible speaker is required for sound operation and is sold separately. For best results, pair the TSU-BH2 with a properly sized SoundTraxx speaker and use speaker baffles and gaskets to improve enclosure performance. Additional installation accessories and wiring aids are available to assist with board-replacement installs.
Compare Other Tsunami2 Decoder Formats
If your locomotive does not use a Bachmann Sound Value board, you may want to explore other Tsunami2 formats such as TSU-1100, TSU-2200, socket-based options like TSU-21PNEM8 or TSU-N18, or high-output solutions such as Big Steam.
Frequently Asked Questions (FAQ)
What locomotives is the TSU-BH2 designed for?
The TSU-BH2 is designed as a board-replacement decoder for select Bachmann Sound Value HO scale steam locomotives.
Does the TSU-BH2 include a speaker?
No. A compatible speaker is required for sound output and must be purchased separately.
Does the TSU-BH2 support LED lighting?
Yes. The function outputs are LED-friendly and do not require external resistors.
Can a CurrentKeeper be added?
Yes. The TSU-BH2 supports adding an energy storage device to improve performance over dirty track and turnouts.
Is the TSU-BH2 compatible with NMRA DCC systems?
Yes. Tsunami2 TSU-BH2 decoders are NMRA-compliant and work with most major DCC systems.
Tsunami2 Sound Decoders – TSU-BH2 from SoundTraxx are premium digital sound decoders designed as a direct board-replacement upgrade for select Bachmann Sound Value HO scale steam locomotives. Built on the advanced Tsunami2 Digital Sound Decoder platform, the TSU-BH2 delivers highly realistic steam sound, refined motor control, and improved operational reliability.
Bachmann Sound Value Steam Board Replacement
The TSU-BH2 is engineered specifically to replace the factory sound board found in Bachmann Sound Value steam locomotives. This board-replacement design provides a clean upgrade path for popular Bachmann steam models while significantly improving sound quality, motor performance, and feature depth compared to the original Sound Value electronics.
Advanced Tsunami2 Steam Sound Performance
Powered by Tsunami2 sound technology, the TSU-BH2 produces rich, dynamic steam audio with multiple exhaust chuffs, whistles, bells, air pumps, and auxiliary effects. Sound behavior responds naturally to throttle changes and load conditions, creating a more realistic steam locomotive experience.
Refined Motor Control & Reliable Operation
Tsunami2 TSU-BH2 decoders provide smooth starts, excellent low-speed performance, and consistent motor response. The decoder includes support for adding a CurrentKeeper-style energy storage device to help maintain sound and motor operation over dirty track, turnouts, and brief power interruptions.
LED-Friendly Lighting & Function Outputs
The TSU-BH2 includes multiple LED-friendly function outputs, allowing LEDs to be connected directly without external resistors. Lighting effects can be customized and mapped to support headlights, cab lighting, firebox flicker, marker lights, and other steam-specific effects depending on the locomotive configuration.
Speaker & Installation Accessories
A compatible speaker is required for sound operation and is sold separately. For best results, pair the TSU-BH2 with a properly sized SoundTraxx speaker and use speaker baffles and gaskets to improve enclosure performance. Additional installation accessories and wiring aids are available to assist with board-replacement installs.
Compare Other Tsunami2 Decoder Formats
If your locomotive does not use a Bachmann Sound Value board, you may want to explore other Tsunami2 formats such as TSU-1100, TSU-2200, socket-based options like TSU-21PNEM8 or TSU-N18, or high-output solutions such as Big Steam.
Frequently Asked Questions (FAQ)
What locomotives is the TSU-BH2 designed for?
The TSU-BH2 is designed as a board-replacement decoder for select Bachmann Sound Value HO scale steam locomotives.
Does the TSU-BH2 include a speaker?
No. A compatible speaker is required for sound output and must be purchased separately.
Does the TSU-BH2 support LED lighting?
Yes. The function outputs are LED-friendly and do not require external resistors.
Can a CurrentKeeper be added?
Yes. The TSU-BH2 supports adding an energy storage device to improve performance over dirty track and turnouts.
Is the TSU-BH2 compatible with NMRA DCC systems?
Yes. Tsunami2 TSU-BH2 decoders are NMRA-compliant and work with most major DCC systems.
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