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.

140 products


  • SoundTraxx 810090 | 50 x 90mm Oval Speaker | Large Scale

    SoundTraxx SoundTraxx 810090 | 50 x 90mm Oval Speaker | Large Scale

    3 reviews

    2 in stock

    This is one of our largest speakers for use with the TSU-4400 in O-scale or larger models. Dimensions: 50 x 90 x37.5mm(D)Frequency Response: 230Hz - 20kHzPower: 2 Watts (Nominal) 5 Watts (Peak)Impedance: 8 Ohms

    2 in stock

    $15.16

  • SoundTraxx 810129 | 23mm Square Mega Bass Speaker 8-ohm 2 watt

    SoundTraxx SoundTraxx 810129 | 23mm Square Mega Bass Speaker 8-ohm 2 watt

    1 review

    4 in stock

    This speaker is perfect for enhancing the low bass sounds that are found in most diesel decoders. It is well worth the extra effort! Dimensions: 23 x 23 x 10.2mm(D)Frequency Response: 275Hz – 20kHzPower: 2 Watts (Nominal) 4 Watts (Peak)Impedance: 8 Ohms

    4 in stock

    $10.36

  • SoundTraxx 810130 | 27mm Round Mega Bass Speaker 8-ohm 2 watt

    SoundTraxx SoundTraxx 810130 | 27mm Round Mega Bass Speaker 8-ohm 2 watt

    1 review

    2 in stock

    This speaker is great for boosting the low frequencies in most diesel and “big” steam sounds. Dimensions: 27 x 14.3mm(D)Frequency Response: 350Hz – 20kHzPeak Power: 2 WattsImpedance: 8 Ohms

    2 in stock

    $10.36

  • SoundTraxx 829002 | PTB-100 Programming Track Booster SoundTraxx 829002 | PTB-100 Programming Track Booster

    SoundTraxx SoundTraxx 829002 | PTB-100 Programming Track Booster

    1 in stock

    The PTB-100 Programming Track Booster is a handy tool for anyone who uses DCC! This device facilitates programming as well as gives some comforting feedback during the programming process. You will instantly know if your decoder has received the programming instruction (or not!) by way of indicator lights on the circuit board. So why might you want (or need) a PTB-100? Certain command stations allow you to read a CV during Service Mode programming, which is useful to verify its current setting. Sometimes trouble reading or verifying CVs may be due to the design of the command station and the decoder itself. All decoders communicate back to the command station using what’s called an acknowledgement pulse, which is defined in NMRA RP-9.2.3 as “an increased load on the programming track of at least 60mA for at least 5ms.” Like most decoders, SoundTraxx Digital Sound Decoders generate the acknowledgment pulse by momentarily applying power to the motor. If the decoder is otherwise working properly (i.e., responds properly on the mainline to speed and direction commands), but the command station is having trouble reading CV data from the decoder, it may be due to incompatibilities between the electrical requirements of the sound decoder (which are different from conventional decoders due to the added audio circuitry) and the electrical characteristics of the programming track. In this case, you will need to use a programming track booster, such as the PTB-100. The PTB-100 amplifies the programming track signals to levels that work best with SoundTraxx Sound Decoders. It is easy to install and inexpensive. An advantage to using the PTB-100 is that it also provides short circuit detection and some helpful diagnostics. The PTB-100 is neither needed nor recommended for use with the Zimo MX1 or the Lenz LVZ100.

    1 in stock

    $58.36

  • SoundTraxx 885007 | TSU-2200 Tsunami2 (2-amp) ALCO Diesel Sound Decoder SoundTraxx 885007 | TSU-2200 Tsunami2 (2-amp) ALCO Diesel Sound Decoder

    SoundTraxx SoundTraxx 885007 | TSU-2200 Tsunami2 (2-amp) ALCO Diesel Sound Decoder

    1 review

    3 in 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: ALCO 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

    3 in 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

    1 in 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

    1 in stock

    $107.16

  • SoundTraxx 885816 | TSU-PNP8 8 Function – Tsunami2 (2-amp) Baldwin & Other Diesel Sound Decoder | HO Scale SoundTraxx 885816 | TSU-PNP8 8 Function – Tsunami2 (2-amp) Baldwin & Other Diesel Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 885816 | TSU-PNP8 8 Function – Tsunami2 (2-amp) Baldwin & Other Diesel Sound Decoder | HO Scale

    1 review

    1 in 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.

    1 in stock

    $98.36

  • SoundTraxx 884607 | BLU-2200 Blunami Steam-2 Sound Decoder SoundTraxx 884607 | BLU-2200 Blunami Steam-2 Sound Decoder

    SoundTraxx SoundTraxx 884607 | BLU-2200 Blunami Steam-2 Sound Decoder

    1 review

    2 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.

    2 in stock

    $135.96

  • SoundTraxx 881006 | Econami ECO-21PNEM (1-amp) Digital Steam Sound Decoder | HO Scale

    SoundTraxx SoundTraxx 881006 | Econami ECO-21PNEM (1-amp) Digital Steam Sound Decoder | HO Scale

    1 review

    1 in stock

    The Econami ECO-21PNEM 1-amp Digital Sound Decoder simply plugs into models equipped with an NEM-supported 21-pin socket. The ECO-21PNEM can be wired to a CurrentKeeper (P.N. 810140 or 810160) to maintain performance over dirty track and switches. Product Specifications: Sound Profile: Steam Dimensions: 30.5 x 15.5 x 6.55mm Max. Motor Stall Current: 1A Max. Function Current: 100mA (each output) Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Sound Channels: 12

    1 in stock

    $67.96

  • SoundTraxx 810159 | JST-21PNEM Adapter

    SoundTraxx SoundTraxx 810159 | JST-21PNEM Adapter

    6 in stock

    Easily adapt any SoundTraxx 21PNEM decoder to an NMRA 9-Pin DCC “quick plug” equipped model. This adapter can also be used with SoundTraxx 9-Pin JST power harness (STX810069) to create a universal-style decoder. Dimensions: 22.5 x 16 x 7.5mm Support for up to 8 functions Solder Pads for CurrentKeeper, speaker connections and extra lights

    6 in stock

    $13.56

  • SoundTraxx 885025 | TSU-4400 – Tsunami2 (4-amp) EMD-2 Diesel Sound Decoder | Multi Scale

    SoundTraxx SoundTraxx 885025 | TSU-4400 – Tsunami2 (4-amp) EMD-2 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-2 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

    $164.00

  • SoundTraxx 810131 | 28mm Square Mega Bass Speaker 8-ohm 4 watt

    SoundTraxx SoundTraxx 810131 | 28mm Square Mega Bass Speaker 8-ohm 4 watt

    1 review

    4 in stock

    This is SoundTraxx’s largest Megabass speaker which provides the best low frequency bass sounds for your steam, diesel, and electric models. Dimensions: 28 x 28 x 11.2mm(D)Frequency Response: 200Hz – 20kHzPeak Power: 4 WattsImpedance: 8 Ohms

    4 in stock

    $10.36

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