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SoundTraxx has been providing Tsunami Digital Sound Decoders to Athearn Trains since 2009.  If you purchased an Athearn locomotive released prior to 2017 it is equipped with SoundTraxx Tsunami Digital Sound Technology.

These great sound decoders provide high quality, digital onboard sound and the benefits of today’s DCC technology. Each Athearn sound-equipped locomotive comes with multiple horns or whistles to allow you to customize the locomotive to your personal tastes or more closely match your prototype railroad. Athearn sound-equipped locomotives include all the amazing features found in all aftermarket Tsunami decoders, including the ability to set up manual notching, a built-in 7-band equalizer, built-in reverb, all 14 Hyperlight lighting effects, and advanced motor controls.

Select your model from the list to link to a quick reference document specific to that engine. For a complete breakdown of all of the CVs and Tsunami's capabilities, please refer to the Userís Guide and Technical Reference in the Discontinued Manuals section of our website.

HO Scale | Prior to 2017 Releases
4-8-4 FEF-3 GP15
Big Boy GP38-2
Challenger 4-6-6-4 MP15
F3 SD45
F7 SD45-2
F45 SD60
FP45 SD70ACe
GP7 C50 Caboose (lighting decoder)
GP9 UP Turbine