New speaker tech may just be the answer we have been looking for

[daniel_leavitt2000]

Check this out. It seems they were tailor made for N scale sound projects.
https://gizmodo.com/i-tested-the-worlds-smallest-and-lightest-micro-speaker-2000525987

[peteski]

Check this out. It seems they were tailor made for N scale sound projects.
https://gizmodo.com/i-tested-the-worlds-smallest-and-lightest-micro-speaker-2000525987

Looks promising but from  what I understand about MEMS devices is they will require special  driver/amplifier. The standard audio amplifier on a decoder will not be able to work with that speaker. But maybe they solved that problem too.  Not enough technical info in that article.

[jdcolombo]

Notice that the article says this technology is for "near-field" use - e.g., earbuds, VR glasses (where it would be mounted near the ear), etc.  Near-field speakers would not be appropriate for sound installations in locomotives.  This isn't a near-field application.

John C.