I have a Niagara w/dcc...what would be the best sound system to install in it???
The best for you depends on what you want.
For the Bachmann HO Niagara 4-8-4 consider
SoundTraxx TSU-1000 Heavy Steam
Decoder Part # 826103
Speaker / Baffle Kit # 810054 / 810110
Click Here (http://www.soundtraxx.com/index.php) for SoundTraxx home webpage with links to more information.
There are other brands of DCC decoders with sound which are very good.