Sound decoder used in Southern Pacific GS-4 4449

[gtrains55]

I would like information as to which sound decoder is used in the Bachmann Southern Pacific GS-4 4449 locomotive.
Also is the decoder compatible with a QSI Quantum Engineer controller, and if not, recommendations for a controller which would be.

[rich1998]

Welcome.

Last I knew, Bachmann used Soundtraxx sound decoders. The CV list is in the Bachmann page.
The controller should work.
Look at the manual online.
Good luck.

Rich

[Trainman203]

Maybe in the 4449.  But some of the newer offerings are featuring TCS WOW decoders.  In my opinion, an unfortunate change.

[Hunt]

Caution -

Unless QSI Quantum Engineer Controller has been upgraded  ---   the QSI Quantum Engineer Controller works only with QSI decoder equipped locomotives.

[rich1998]

Thanks. That is a new one.

Rich

[Trainman203]

It is my understanding that QSI is out of business.  If that is the case, I'd start with a new system.  Or you'll end up like Netscape based software, unsupported.  Just like what drove the N&W out of steam power, disappearance of industry support.