SoundTraxx

SoundTraxx - Squeaky's Trains & Things

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.

131 products


  • SoundTraxx 810153 | 28mm (1″) 8-ohm, 2 Watt Round Speaker SoundTraxx 810153 | 28mm (1″) 8-ohm, 2 Watt Round Speaker

    SoundTraxx SoundTraxx 810153 | 28mm (1″) 8-ohm, 2 Watt Round Speaker

    2 reviews

    Out of stock

    Suitable for many HO and larger models. Dimensions: 28 x 4.5mm(D)Frequency Response: 320 Hz – 18kHzPower: 1 Watt (Nominal) 2 Watts (Peak)Impedance: 8 Ohms

    Out of stock

    $10.36

  • SoundTraxx 852002 | DCC Mobile Decoder MC2H104AT | HO Scale

    SoundTraxx SoundTraxx 852002 | DCC Mobile Decoder MC2H104AT | HO Scale

    2 reviews

    Out of stock

    HO-scale, 4-function decoder that measures 74 x 17 x 3mm designed to replace the existing manufacturer light board in Atlas HO diesel models, some InterMountain Railway models, and those using a similar physical design. This decoder will operate in both DC and DCC. Dimensions: 74 x 17 x 3mm Max. Motor Stall Current: 1A Max. Function Current: 100mA (each output) Function Outputs: 4 DCC Track Voltage: 21 Volts Maximum

    Out of stock

    $23.16

  • SoundTraxx 810110 | 28mm Speaker Baffle Kit

    SoundTraxx SoundTraxx 810110 | 28mm Speaker Baffle Kit

    Out of stock

    This snap-together baffle kit is designed for use with SoundTraxx’s 28mm round speakers (P.N. STX810054 or STX810153).

    Out of stock

    $6.36

  • SoundTraxx 885005 | TSU-2200 – Tsunami2 (2-amp) EMD Diesel Sound Decoder | HO Scale SoundTraxx 885005 | TSU-2200 – Tsunami2 (2-amp) EMD Diesel Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 885005 | TSU-2200 – Tsunami2 (2-amp) EMD Diesel Sound Decoder | HO Scale

    1 review

    Out of stock

    The TSU-2200 is a versatile Digital Sound Decoder that 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 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 2-amp, universal-style format, and includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: EMD Diesel Dimensions: 35 x 18 x 6mm Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $107.16

  • SoundTraxx 885022 | TSU-2200 Tsunami2 (2-amp) EMD-2 Diesel Sound Decoder | HO Scale SoundTraxx 885022 | TSU-2200 Tsunami2 (2-amp) EMD-2 Diesel Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 885022 | TSU-2200 Tsunami2 (2-amp) EMD-2 Diesel Sound Decoder | HO Scale

    Out of stock

    The TSU-2200 is a versatile Digital Sound Decoder that 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 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 2-amp, universal-style format, and includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: EMD-2 Diesel Dimensions: 35 x 18 x 6mm Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $107.16

  • SoundTraxx 885006 | TSU-2200 Tsunami2 (2-amp) GE Diesel Sound Decoder | HO Scale SoundTraxx 885006 | TSU-2200 Tsunami2 (2-amp) GE Diesel Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 885006 | TSU-2200 Tsunami2 (2-amp) GE Diesel Sound Decoder | HO Scale

    Out of stock

    The TSU-2200 is a versatile Digital Sound Decoder that 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 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 2-amp, universal-style format, and includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: GE Diesel Dimensions: 35 x 18 x 6mm Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $107.16

  • SoundTraxx 885001 | TSU-1100 Tsunami2 (1-amp) EMD Diesel Sound Decoder

    SoundTraxx SoundTraxx 885001 | TSU-1100 Tsunami2 (1-amp) EMD Diesel Sound Decoder

    Out of stock

    The TSU-1100 is one of SoundTraxx’s smallest sound decoders, yet is packed with a plethora of high-performance features! 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. SoundTraxx 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 micro 1-amp, universal-style format is ideal for small models with minimal space. It includes an optional capacitor or can be wired to a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: EMD Diesel Dimensions: 27 x 10.5 x 5mm Max. Motor Stall Current: 1A Max. Function Current: 100mA (each output) Function Outputs: 4 Audio Amplifier: 1 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 16

    Out of stock

    $111.96

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

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

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

    2 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 885812 | TSU-21PNEM8 Tsunami2 (1-amp) Baldwin & Other Diesel Sound Decoder SoundTraxx 885812 | TSU-21PNEM8 Tsunami2 (1-amp) Baldwin & Other Diesel Sound Decoder

    SoundTraxx SoundTraxx 885812 | TSU-21PNEM8 Tsunami2 (1-amp) Baldwin & Other Diesel Sound Decoder

    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! The TSU-21PNEM8 can be wired to a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: Baldwin & Other Diesels 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 885615 | BLU-PNP8 Blunami ALCO Diesel Sound Decoder | HO Scale SoundTraxx 885615 | BLU-PNP8 Blunami ALCO Diesel Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 885615 | BLU-PNP8 Blunami ALCO Diesel Sound Decoder | HO Scale

    Out of stock

    Blunami will change the way you enjoy the model railroading hobby! The BLU-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. It can be operated in three different ways: DC, DCC, and Wireless mode. Using the Blunami App, you can operate your locomotive incredibly easily.  Need Help Choosing a Sound Profile?We have tons of sounds to match a wide range of locomotives. So many, in fact, we cannot fit them all on one decoder. Therefore, they are broken up into sound profiles of like sounds (EMD, GE, ALCO, etc.). If you don't know which sound profile you need, the best place to start is the Sound Selection References. These will list all the prime movers or exhaust chuffs available on each sound profile. If you need further assistance explore these links:  Decoder Selector: Tells you which board format and part number you need for specific models. Sound Samples: Hear SoundTraxx sounds in action! Choosing the Right Sound System: If you are new to SoundTraxx, model railroading, or are unfamiliar with our products. Sound Selection References: There are several for each decoder and they can be found below or in the Manuals section of SoundTraxx's website. DYNAMIC DIGITAL EXHAUST For added realism, you’ll love SoundTraxx's reactive Dynamic Digital Exhaust (DDE) feature that automatically notches your model's engine up or down depending on the load on the motor. With the Blunami App, DDE calibration has never been easier. When your locomotive is traveling across flat terrain and simply maintaining speed, you will hear your locomotive chugging along. But, when the locomotive encounters a grade and the engineer applies more throttle to get the train up the hill, the engine sounds will automatically react and reflect the increase of power needed to crest the hill. DDE accomplishes this by calculating the changes in strain or load on the motor and adjusting the exhaust to appropriately simulate the work the engineer would be doing to the throttle of the engine. This gives Blunami the ability to create the most realistic experience possible. HIGH-QUALITY SOUND LIBRARYSoundTraxx's large selection of sound effects includes:  Up to 12 Prime Movers in each sound profile  Up to 12 Bells  40+ Airhorns Additional couplers, cab chatter, and more! ADDED REALISMAdditional realism can be simulated by adding functioning locomotive and train brakes, injectors, and more. EASY INSTALLATIONThis decoder includes a connector to easily add a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. This 2-amp, universal-style format includes a connector to easily add a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. Dimensions: 74 x 17 x 5mm  Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16   Blunami Owner's Manual Blunami Installation Guide Blunami Diesel User's Guide   Blunami Sound Selection References: Blunami EMD Sound Selection Reference Blunami EMD-2 Sound Selection Reference Blunami GE Sound Selection Reference Blunami ALCO Sound Selection Reference Blunami Baldwin & Others Sound Selection Reference   Blunami Sound Samples Blunami EMD Blunami EMD-2 Sounds Blunami GE Sounds Blunami ALCO Sounds Blunami Baldwin & Other Diesel Sounds SoundTraxx A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. SoundTraxx proudly design and manufacture our industry-best products right here in the USA, and SoundTraxx's friendly customer support staff work side-by-side with the rest of our product team.

    Out of stock

    $130.36

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