Decoders and Accessories

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...

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...

Our NEW 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...

The TSU-21PNEM is a 1-amp Digital Sound Decoder with six function outputs 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:...

Fully connectorized installation.Optional support for DCC 9-Aspect control mode, including Lunars.Easy setup with Option Switches and LocoNet programming.Configurable for four solenoid or four slow-motion turnout control.8 Input lines for local control...

The WOW101 is a universal sound decoder for locomotives with DCC-ready 9-pin plugs, or which cannot accommodate a motherboard or WOWKit. This decoder may be hard-wired or plugged directly into any locomotive with a 9-pin JST plug. The WOW101 is...

The WOW121 is a universal sound decoder for locomotives with DCC-ready 21-pin MTC connectors, and can also be used with any of TCS' motherboards. The WOW121 requires a motherboard to interface with the locomotive. The motherboard will determine the...

Add DCC with CD-quality 16-bit 44,100Hz TCS WOWSound® to your DCC Sound-ready ACS-64, as included in the Amtrak® City Sprinter train set. Not required for current separate-sale ACS-64 models, which are factory DCC/sound-equipped. 

The TSU-21PNEM is a 1-amp Digital Sound Decoder with six function outputs 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:...

The TSU-21PNEM is a 1-amp Digital Sound Decoder with six function outputs 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:...

The TSU-21PNEM is a 1-amp Digital Sound Decoder with six function outputs 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:...

The TSU-21PNEM is a 1-amp Digital Sound Decoder with six function outputs 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:...