Model Trains, Scenery, DCC Decoders & HO/N Scale Kits

SoundTraxx: Premium Model Train Sound Systems

SoundTraxx: Premium Model Train Sound Systems - Squeaky's Trains

SoundTraxx brings new dimensions in digital sound technology to your model railroad. Regardless of your scale or prototype, they have a sound system for you! They manufacture all of their Digital Sound Decoders in the USA, right here in Durango, Colorado. Their professional sound engineers record and edit their sound files and test their decoders multiple times before they ship to ensure top quality.

139 products

  • SoundTraxx 885813 | TSU-PNP8 8 Function – Tsunami2 (2-amp) EMD Diesel Sound Decoder - Squeaky's Trains SoundTraxx 885813 | TSU-PNP8 8 Function – Tsunami2 (2-amp) EMD Diesel Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 885813 | TSU-PNP8 8 Function – Tsunami2 (2-amp) EMD Diesel Sound Decoder

    3 reviews

    Out of stock

    The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is suitable for a wide variety of models from HO to S scale. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive brakes, and train brakes. We also offer a large selection of selectable sound effects including: prime movers (up to 12), bells (12), airhorns (40+) and more! This decoder includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches.

    Out of stock

    $98.36

  • SoundTraxx 810135 | 9-pin JST to NMRA 8-pin Wiring Harness - Squeaky's Trains SoundTraxx 810135 | 9-pin JST to NMRA 8-pin Wiring Harness - Squeaky's Trains

    SoundTraxx SoundTraxx 810135 | 9-pin JST to NMRA 8-pin Wiring Harness

    Out of stock

    The SoundTraxx 9-pin JST to NMRA 8-pin wiring harness easily converts TSU-2200 or ECO-200 Digital Sound Decoders to plug and play decoders for use with models equipped with an NMRA 8-pin socket.

    Out of stock

    $11.16

  • SoundTraxx 884009 | TSU-4400 – Tsunami2 (4-amp) Steam-2 Sound Decoder | Multi Scale - Squeaky's Trains SoundTraxx 884009 | TSU-4400 – Tsunami2 (4-amp) Steam-2 Sound Decoder | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 884009 | TSU-4400 – Tsunami2 (4-amp) Steam-2 Sound Decoder | Multi Scale

    5 reviews

    Enjoy complimentary shipping!Bundle your purchases for even more savings with our free shipping option. (This offer is optional) The TSU-4400 is designed for models with higher stall currents such as some S, O, and large scale locomotives; this decoder features easy-to-use terminal blocks for no-fault wiring and a higher audio amplifier for awesome volume, indoors or out. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, injectors, power reverse, and firebox flicker. We also offer a large selection of selectable sound effects including: exhaust chuffs(10), prime movers (up to 12), bells (12), Whistles (90), airhorns (40+), couplers, dynamos and more! This 4-amp, universal-style format decoder includes a connector to easily add a CurrentKeeper (P.N. STX810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: Steam-2 Dimensions: 69 x 30.5 x 14mm Max. Motor Stall Current: 4A Max. Function Current: 400mA (each output) Function Outputs: 6 Audio Amplifier: 3 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 26V Sound Channels: 16

    $164.00

  • SoundTraxx 885810 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) GE Diesel Sound Decoder - Squeaky's Trains SoundTraxx 885810 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) GE Diesel Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 885810 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) GE Diesel Sound Decoder

    3 reviews

    Out of stock

    The TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, injectors, power reverse, and firebox flicker. They also offer a large selection of selectable sound effects including: exhaust chuffs(10), prime movers (up to 12), bells (12), Whistles (90), airhorns (40+), couplers, dynamos and more! This decoder includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Sound Profile: GE Diesel Dimensions: 30.5 x 15.5 x 6.5mm  Max. Motor Stall Current: 1A Max. Function Current: 100mA (each output) Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $98.36

  • SoundTraxx 885815 | TSU-PNP8  8 Function Tsunami2 (2-amp) ALCO Diesel Sound Decoder - Squeaky's Trains SoundTraxx 885815 | TSU-PNP8  8 Function Tsunami2 (2-amp) ALCO Diesel Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 885815 | TSU-PNP8 8 Function Tsunami2 (2-amp) ALCO Diesel Sound Decoder

    1 review

    Out of stock

    The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is suitable for a wide variety of models from HO to S scale. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive brakes, and train brakes. We also offer a large selection of selectable sound effects including: prime movers (up to 12), bells (12), airhorns (40+) and more! This decoder includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches.

    Out of stock

    $98.36

  • SoundTraxx 886803 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) Electric Models Sound Decoder - Squeaky's Trains SoundTraxx 886803 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) Electric Models Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 886803 | TSU-21PNEM – 8 Function – Tsunami2 (1-amp) Electric Models Sound Decoder

    Out of stock

    This TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, injectors, power reverse, and firebox flicker. They also offer a large selection of selectable sound effects including: exhaust chuffs(10), prime movers (up to 12), bells (12), Whistles (90), airhorns (40+), couplers, dynamos and more! The TSU-21PNEM8 can be wired to a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Sound Profile: Electric  Dimensions: 30.5 x 15.5 x 6.5mm  Max. Motor Stall Current: 1A Max. Function Current: 100mA (each output) Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $98.36

  • SoundTraxx 884814 | Tsunami2 TSU-BH2 Steam-2 Digital Sound Decoder - Squeaky's Trains SoundTraxx 884814 | Tsunami2 TSU-BH2 Steam-2 Digital Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 884814 | Tsunami2 TSU-BH2 Steam-2 Digital Sound Decoder

    Get a quick decoder upgrade for your Bachmann HO Sound Value steam models with our new Tsunami2 TSU-BH2. This decoder offers 8 function outputs and an easy install. Simply replace the Sound Value decoder and enjoy all of the Tsunami2 features you love.The 8 function outputs are LED-friendly so resistors are not required for LEDs! (See the wiring diagrams under product documentation for more information). Light effects are fully remappable and offer full access to our 20+ HyperLight effects.This decoder is designed to replace the factory board in the following HO Bachmann Sound Value Steam Models: 2-6-0, 2-8-0, 4-6-2, 4-8-4 Class J and GS4.You will feel like you are in the cab with the amazing new features that Tsunami2 has to offer including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, functioning adjustable exhaust cut-off, and firebox flicker. We also offer a large selection of selectable sound effects including: exhaust chuffs(10), bells (12), Whistles (90), couplers, dynamos and more!This decoder includes a connector to easily add a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: Steam-2 Dimensions: 45 x 28 x 7.5mm Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 8 LED-Friendly Outputs! Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16 Tsunami2 Digital Sound Decoders integrate a full-featured sound system, Hyperlight™ lighting effects, Hyperdrive2™ advanced motor control, and a DCC decoder into a single package. Tsunami2 Digital Sound Decoders offer 20+ lighting effects in each model! Other popular Tsunami2 features include: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes. We also offer a large selection of selectable sound effects including: 8 manufacturer specific prime movers, bells (12), airhorns (40+), couplers, compressors, and more!

    $98.36

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