The SDXO487 Digitrax sound decoder is a high-capacity device designed for O or G scale trains. It comes with 8 CV-selectable steam and diesel sound schemes, offering a rich audio experience. It's a mobile decoder with SoundFX v3. It fits many larger locomotives. With a 4 Amp/5 Amps peak power, 8 FX3 functions and 300ma output, it ensures stable performance. It includes an 8 Ω box speaker and a 330uF capacitor. New sound .spjs files can be loaded using a Digitrax USB programmer.

Using this SDXO487 Digitrax sound decoder is easy. First, make sure it fits your larger O or G scale locomotive. You can select from 8 different steam and diesel sound schemes according to your preference. To load new sound files, use a Digitrax USB programmer. When it comes to maintenance, keep it in a dry place. Don't expose it to extreme temperatures. If you notice any issues with the sound or performance, check the connections first. Also, avoid overloading it beyond the 4 Amp/5 Amps peak power rating.