The included speakers aren’t very good and haven’t been even when Liibel was going things. I always end use the largest speaker I can and try to use 2 if possible. Sound works in the more air you move, the louder the sound. The larger the speaker, the better your low frequency sounds are. Trains need great low frequency bass to sound good.
Depending on what scale I’be been building baffles out if lexan for O & G and the work very well. I keep a good stock of