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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.

131 products


  • SoundTraxx 810161 | Cool White LEDs (6 Pack) | Multi Scale - Squeaky's Trains SoundTraxx 810161 | Cool White LEDs (6 Pack) | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 810161 | Cool White LEDs (6 Pack) | Multi Scale

    4 in stock

    Cool White LEDs for adding or using the Hyperlight lighting effects. Can be used as LED replacements or in place of bulbs (see your decoder manual). The cathode or minus (-) side is indicated by the ‘flag’ inside the LED, or by the shorter of the two leads.  Dimensions: 3mm (0.12”) diameterVoltage: 3.3 Volts

    4 in stock

    £9.69

  • SoundTraxx 885622 | BLU-2200 Blunami EMD-2 Sound Decoder | Multi Scale - Squeaky's Trains SoundTraxx 885622 | BLU-2200 Blunami EMD-2 Sound Decoder | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 885622 | BLU-2200 Blunami EMD-2 Sound Decoder | Multi Scale

    1 in stock

    Blunami will change the way you enjoy the model railroading hobby! The Blunami BLU-2200The BLU-2200 is a universal-style sound decoder that can be operated in three different ways: DC, DCC and Wireless mode. Using the Blunami app (iOS versions 8 or later), you can operate your locomotive with incredible ease of use. This decoder is suitable for use in both HO and small S-scale models. Wireless mode not currently available for android devices. DYNAMIC DIGITAL EXHAUST For added realism, you’ll love SoundTraxx's reactive Dynamic Digital Exhaust (DDE) feature that automatically notches your models 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 high quality sound effects include:  10 Exhaust Chuffs Up to 12 Prime Movers in each sound profile  Up to 12 Bells  90 Whistles 40+ Airhorns Additional couplers, dynamos, cab chatter and more! ADDED REALISMAdditional realism can be simulated by adding functioning locomotive and train brakes, injectors, power reverse, firebox flicker and more. EASY INSTALLATIONThe BLU-2200 can simply plug into models equipped with a DCC quick plug. Our 9-Pin JST to NMRA 8-Pin Wiring Harness (P.N. 810135) can also be used to plug the BLU-2200 into models equipped with an NMRA 8-Pin plug. The BLU-2200 can also be wired into a large variety of models. This 2-amp, universal-style format, and includes a connector to easily add a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. Dimensions: 41.9 x 18.8 x 6.8mm  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   Blunami Owner's Manual Blunami Installation Guide Blunami Steam User's Guide Blunami Diesel User's Guide Blunami Electric User's Guide   Blunami Sound Selection References: Blunami Steam-2 Sound Selection Reference 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 Electric Sound Selection Reference   Blunami Sound Samples Blunami Steam-2 Sounds Blunami EMD Blunami EMD-2 Sounds Blunami GE Sounds Blunami ALCO Sounds Blunami Baldwin & Other Diesel Sounds Blunmai Electric Sounds SoundTraxx A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best products right here in the USA, and our friendly customer support staff work side-by-side with the rest of our product team.

    1 in stock

    £110.13

  • SoundTraxx 885605 | BLU-2200 Blunami  EMD Sound Decoder | Multi Scale - Squeaky's Trains SoundTraxx 885605 | BLU-2200 Blunami  EMD Sound Decoder | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 885605 | BLU-2200 Blunami EMD Sound Decoder | Multi Scale

    3 reviews

    1 in stock

    Blunami will change the way you enjoy the model railroading hobby! The Blunami BLU-2200The BLU-2200 is a universal-style sound decoder that can be operated in three different ways: DC, DCC and Wireless mode. Using the Blunami app (iOS versions 8 or later), you can operate your locomotive with incredible ease of use. This decoder is suitable for use in both HO and small S-scale models. Wireless mode not currently available for android devices. DYNAMIC DIGITAL EXHAUST For added realism, you’ll love SoundTraxx's reactive Dynamic Digital Exhaust (DDE) feature that automatically notches your models 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 high quality sound effects include:  10 Exhaust Chuffs Up to 12 Prime Movers in each sound profile  Up to 12 Bells  90 Whistles 40+ Airhorns Additional couplers, dynamos, cab chatter and more! ADDED REALISMAdditional realism can be simulated by adding functioning locomotive and train brakes, injectors, power reverse, firebox flicker and more. EASY INSTALLATIONThe BLU-2200 can simply plug into models equipped with a DCC quick plug. Our 9-Pin JST to NMRA 8-Pin Wiring Harness (P.N. 810135) can also be used to plug the BLU-2200 into models equipped with an NMRA 8-Pin plug. The BLU-2200 can also be wired into a large variety of models. This 2-amp, universal-style format, and includes a connector to easily add a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. Dimensions: 41.9 x 18.8 x 6.8mm  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   Blunami Owner's Manual Blunami Installation Guide Blunami Steam User's Guide Blunami Diesel User's Guide Blunami Electric User's Guide   Blunami Sound Selection References: Blunami Steam-2 Sound Selection Reference 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 Electric Sound Selection Reference   Blunami Sound Samples Blunami Steam-2 Sounds Blunami EMD Blunami EMD-2 Sounds Blunami GE Sounds Blunami ALCO Sounds Blunami Baldwin & Other Diesel Sounds Blunmai Electric Sounds SoundTraxx A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best products right here in the USA, and our friendly customer support staff work side-by-side with the rest of our product team.

    1 in stock

    £110.13

  • SoundTraxx 884011 | TSU-1100 Tsunami 2 Sound Decoder, 2 Amp, Big Steam - Squeaky's Trains SoundTraxx 884011 | TSU-1100 Tsunami 2 Sound Decoder, 2 Amp, Big Steam - Squeaky's Trains

    SoundTraxx SoundTraxx 884011 | TSU-1100 Tsunami 2 Sound Decoder, 2 Amp, Big Steam

    2 in stock

    Enjoy complimentary shipping!Bundle your purchases for even more savings with our free shipping option. (This offer is optional) This decoder features a true UP Big Boy recording! Previously this sound file was only offered in Athearn factory installed decoders, but now you can get it on our web store. This decoder is available in 3 board formats: TSU-1100, TSU-2200, and TSU-21PNEM8. We will have more web special decoders in the future so stay tuned. You will also get all of the features that you know and love from our Tsunami2 decoder line 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: bells (12), Whistles (90+), couplers, dynamos and more!These decoders include an optional capacitor or can be wired to a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches.

    2 in stock

    £90.69

  • SoundTraxx 884013 | TSU-21PNEM8 Tsunami 2 Sound Decoder, 2 Amp, 21PNEM, Big Steam - Squeaky's Trains SoundTraxx 884013 | TSU-21PNEM8 Tsunami 2 Sound Decoder, 2 Amp, 21PNEM, Big Steam - Squeaky's Trains

    SoundTraxx SoundTraxx 884013 | TSU-21PNEM8 Tsunami 2 Sound Decoder, 2 Amp, 21PNEM, Big Steam

    1 in stock

    Enjoy complimentary shipping!Bundle your purchases for even more savings with our free shipping option. (This offer is optional) A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best products right here in the USA, and our friendly customer support staff work side-by-side with the rest of our product team. The Tsunami2 TSU-BigSteamThe TSU-Big Steam is a limited edition decoder available in 3 board formats. This decoder features a true UP Big Boy recording! Previously this sound file was only offered in Athearn factory installed decoders, but now you can get it on our web store. This decoder is available in 3 board formats: TSU-1100, TSU-2200, and TSU-21PNEM8. You will also get all of the features that you know and love from our Tsunami2 decoder line 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: bells (12), Whistles (90+), couplers, dynamos and more! DYNAMIC DIGITAL EXHAUST For added realism, you’ll love our reactive Dynamic Digital Exhaust (DDE) feature. 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 Tsunami2 the ability to create the most realistic experience possible.HIGH QUALITY SOUND LIBRARYOur large selection of high quality sound effects include:  10 Exhaust Chuffs Up to 12 Prime Movers in each sound profile  Up to 12 Bells  90 Whistles 40+ Airhorns Additional couplers, dynamos, cab chatter and more! ADDED REALISMAdditional realism can be simulated by adding functioning locomotive and train brakes, injectors, power reverse, firebox flicker and more. EASY INSTALLATIONThe TSU-2200 can simply plug into models equipped with a DCC quick plug. Our 9-Pin JST to NMRA 8-Pin Wiring Harness (P.N. 810135) can also be use to plug the TSU-2200 into models equipped with an NMRA 8-Pin plug. The TSU-2200 can also be wired into a large variety of models. The TSU-21PNEM8 simply plugs into models equipped with a 21-pin NEM socket. These decoders include an optional capacitor or can be wired to a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches.

    1 in stock

    £79.67

  • SoundTraxx 884012 | TSU-2200 Tsunami 2 Sound Decoder, 2 Amp, Big Steam - Squeaky's Trains SoundTraxx 884012 | TSU-2200 Tsunami 2 Sound Decoder, 2 Amp, Big Steam - Squeaky's Trains

    SoundTraxx SoundTraxx 884012 | TSU-2200 Tsunami 2 Sound Decoder, 2 Amp, Big Steam

    Enjoy complimentary shipping!Bundle your purchases for even more savings with our free shipping option. (This offer is optional) This decoder features a true UP Big Boy recording! Previously this sound file was only offered in Athearn factory installed decoders, but now you can get it on our web store. This decoder is available in 3 board formats: TSU-1100, TSU-2200, and TSU-21PNEM8. We will have more web special decoders in the future so stay tuned. You will also get all of the features that you know and love from our Tsunami2 decoder line 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: bells (12), Whistles (90+), couplers, dynamos and more!These decoders include an optional capacitor or can be wired to a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches.

    £86.80

  • SoundTraxx 885842 | Tsunami2 TSU-BH1 ALCO Diesel Digital Sound Decoder - Squeaky's Trains SoundTraxx 885842 | Tsunami2 TSU-BH1 ALCO Diesel Digital Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 885842 | Tsunami2 TSU-BH1 ALCO Diesel Digital Sound Decoder

    2 in stock

    Get an easy upgrade for your Bachmann Sound Value diesel models with our newest Tsunami2 decoder! The TSU-BH1 offers 8 LED-friendly function outputs 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 available in 3 sound profiles EMD, GE, and ALCO. For an easy install, simply replace the Sound Value decoder and enjoy all of the Tsunami2 features you love!This decoder is designed to replace the factory board in the following Bachmann Sound Value Diesel Models: FA-2, FB-2, S-4, E7-A, SD70ACe, ES44AC, GP30, GP38-2, GP40, GP7, and SD40-2.Fun Tsunami2 features including: Reactive Dynamic Digital Exhaust, Functioning locomotive and train brakes, injectors, power reverse, and more. We also offer a large selection of selectable sound effects including: prime movers (up to 12), bells (12), airhorns (40+), couplers, 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: ALCO Diesel Dimensions: 97 x 16 x 7.7mm 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!

    2 in stock

    £79.67

  • SoundTraxx 885812 | TSU-21PNEM8 Tsunami2 (1-amp) Baldwin & Other Diesel Sound Decoder - Squeaky's Trains SoundTraxx 885812 | TSU-21PNEM8 Tsunami2 (1-amp) Baldwin & Other Diesel Sound Decoder - Squeaky's Trains

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

    1 in 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

    1 in stock

    £79.67

  • SoundTraxx 885811 | TSU-21PNEM8 Tsunami2 (1-amp) ALCO Diesel Sound Decoder - Squeaky's Trains SoundTraxx 885811 | TSU-21PNEM8 Tsunami2 (1-amp) ALCO Diesel Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 885811 | TSU-21PNEM8 Tsunami2 (1-amp) ALCO Diesel Sound Decoder

    2 in 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: ALCO 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

    2 in stock

    £79.67

  • SoundTraxx 810134 | Golden White LEDs (6 Pack) | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 810134 | Golden White LEDs (6 Pack) | Multi Scale

    1 review

    2 in stock

    Golden White LED for adding Hyperlight effects or as bulb replacements. 3mm (0.012") diameter 3.3 Volt

    2 in stock

    £9.69

  • SoundTraxx 885017 | TSU-4400 – Tsunami2 (4-amp) EMD Diesel Sound Decoder | Multi Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 885017 | TSU-4400 – Tsunami2 (4-amp) EMD Diesel Sound Decoder | Multi Scale

    1 in stock

    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: EMD Diesel 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

    1 in stock

    £132.84

  • SoundTraxx 884808 | TSU-21PNEM8 Tsunami2 (1-amp) Steam-2 Sound Decoder - Squeaky's Trains SoundTraxx 884808 | TSU-21PNEM8 Tsunami2 (1-amp) Steam-2 Sound Decoder - Squeaky's Trains

    SoundTraxx SoundTraxx 884808 | TSU-21PNEM8 Tsunami2 (1-amp) Steam-2 Sound Decoder

    1 in stock

    Enjoy complimentary shipping!Bundle your purchases for even more savings with our free shipping option. (This offer is optional) 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: Steam-2 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

    1 in stock

    £79.67

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