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.

141 products

  • SoundTraxx 810140 | CurrentKeeper™ - Squeaky's Trains

    SoundTraxx SoundTraxx 810140 | CurrentKeeper™ | Multi Scale

    4 reviews

    7 in stock

    Ensure Smoother Performance for Your Model TrainsThe SoundTraxx 810140 CurrentKeeper™ Power Backup Module is the ultimate solution for maintaining uninterrupted sound and lighting in your DCC-equipped locomotives. Designed for multi-scale use, this compact device eliminates annoying interruptions caused by dirty tracks, inconsistent power, or complex layouts. Whether you’re running HO, O, or G scale, the CurrentKeeper™ ensures reliable operation every time. Why Choose the CurrentKeeper™? Eliminates flickering lights and sound dropouts. Compact and easy to install—perfect for tight locomotive spaces. Compatible with all SoundTraxx DCC decoders and most other brands. Boosts realism by ensuring smooth, uninterrupted performance. Specifications: Scale Compatibility: Multi-scale (HO, O, G, and others). Dimensions: Compact design fits most locomotive types. Power System: For use with DCC decoders. Material: High-quality electronic components. Don’t let power interruptions ruin your layout! Upgrade your locomotives today with the SoundTraxx CurrentKeeper™.

    7 in stock

    £21.18

  • SoundTraxx 884007 | TSU-2200 Steam-2 Digital Sound Decoder | Tsunami2 2-amp - Squeaky's Trains SoundTraxx 884007 | TSU-2200 Steam-2 Digital Sound Decoder | Tsunami2 2-amp - Squeaky's Trains

    SoundTraxx SoundTraxx 884007 | TSU-2200 Steam-2 Digital Sound Decoder | Tsunami2 2-amp

    7 reviews

    4 in stock

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

    4 in stock

    £86.11

  • SoundTraxx 810154 | Mini Cube Oval Speaker/Baffle | HO Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 810154 | Mini Cube Oval Speaker/Baffle | HO Scale

    2 reviews

    6 in stock

    This tiny speaker comes with a properly proportioned speaker enclosure and provides great results for space-constrained models! Dimensions: 16 x 12 x 11.3mm(D)Frequency Response: 300Hz – 20kHzPower: .7 Watts (Nominal) 1 Watt (Peak)Impedance: 8 Ohms Note: When using this speaker with a decoder that has a two watt amplifier, it must be wired in series with another 1 watt speaker.

    6 in stock

    £10.25

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

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

    2 reviews

    1 in 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

    1 in stock

    £8.32

  • SoundTraxx 884006 | TSU-1100 Tsunami2 (1-amp) Steam-2 Sound Decoder | HO Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 884006 | TSU-1100 Tsunami2 (1-amp) Steam-2 Sound Decoder | HO Scale

    2 reviews

    2 in 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: Steam-2 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

    2 in stock

    £89.97

  • SoundTraxx 810123 | NMRA 8-pin Connector (set of 4) - Squeaky's Trains SoundTraxx 810123 | NMRA 8-pin Connector (set of 4) - Squeaky's Trains

    SoundTraxx SoundTraxx 810123 | NMRA 8-pin Connector (set of 4)

    4 in stock

    This set of four 8-pin connectors is designed to facilitate wiring in locomotives equipped with a DCC-ready socket.

    4 in stock

    £8.97

  • 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

    4 in 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.

    4 in stock

    £8.97

  • SoundTraxx 810112 | 25 x 14mm Oval 8-ohm Speaker - Squeaky's Trains

    SoundTraxx SoundTraxx 810112 | 25 x 14mm Oval 8-ohm Speaker

    2 reviews

    1 in stock

    This small speaker is perfect for narrow hood diesels and anywhere else where space is at a premium. Dimensions: 25 x 14 x 5.2mm(D)Frequency Response: 300Hz – 20kHzPeak Power: 1.5 WattsImpedance: 8 Ohms

    1 in stock

    £10.25

  • 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

    1 in stock

    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

    1 in stock

    £131.78

  • SoundTraxx 852002 | DCC Mobile Decoder MC2H104AT | HO Scale - Squeaky's Trains

    SoundTraxx SoundTraxx 852002 | DCC Mobile Decoder MC2H104AT | HO Scale

    2 reviews

    2 in 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

    2 in stock

    £18.61

  • SoundTraxx 810155 | Mini Cube 2 Oval Speaker/Baffle - Squeaky's Trains SoundTraxx 810155 | Mini Cube 2 Oval Speaker/Baffle - Squeaky's Trains

    SoundTraxx SoundTraxx 810155 | Mini Cube 2 Oval Speaker/Baffle

    1 review

    6 in stock

    SoundTraxx’s tiniest speaker comes with a properly proportioned speaker enclosure and provides remarkable volume for tiny models! Dimensions: 13 x 9 x 9.4mm(D)Frequency Response: 100Hz – 10kHzPower: 40mW (Nominal) 75mW (Peak)Impedance: 32 Ohms Note: When using this speaker with a decoder that has a 1-2 Watt, 8 Ohm  amplifier; it must be wired in parallel with another 32 Ohm speaker to create a 16 Ohm load for the amplifier.

    6 in stock

    £10.57

  • SoundTraxx 852004 | DCC Mobile Universal Decoder (1-amp) MC2H104P9 - Squeaky's Trains

    SoundTraxx SoundTraxx 852004 | DCC Mobile Universal Decoder (1-amp) MC2H104P9

    4 in stock

    HO-scale, 4-function decoder that measures 25 x 16 x 6mm with a 9-pin ‘universal’ JST wiring harness that is mostly used in older pre-DCC or brass models. This decoder will operate in both DC and DCC. Product Specifications: Dimensions: 25 x 16 x 6mmMax. Motor Stall Current: 1AMax. Function Current: 100mA (each output)Function Outputs: 4DCC Track Voltage: 21 Volts Maximum

    4 in stock

    £21.18

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