The simplified reply (cos it’s unnecessarily complicated)
EBMM = US of A made instruments.
current guises of the Stingray: Stingray Special 4 & 5 (The newest incarnation)
Retro (more or less a copy of the original 70s Stingray)
Shortscale Stingray
check here for models and specs: https://www.music-man.com/instruments/basses
Sterling by Musicman = more affordable versions of the above…mainly, with a few tweaks here and there. Made in Indonesia
check here for models and specs: https://intl.sterlingbymusicman.com/collections/basses
SUB = entry level versions of the above.
models and specs are on the above link ^
If you want second hand and historical information you may need to sit down and take notes 😆
…..the waters are muddied by a well regarded series of basses produced in the USA to be more a bit more affordable in the (90s/00s?) before the advent of outsourcing production overseas…also called SUB… these are normally easily identified by their painted necks
also.. also…. Another mythical series made in Japan… known as Musicman Ex. Similar sort of vintage… They look more or less identical to a USA stingray of the era but just don’t have made in USA written on them
Then of course we have the complication that one of Musicmans bass model names is: Sterling… so you can get a Sterling by Musicman Sterling… etc 🤯
we could go on… I think most of the info on the two websites makes it pretty simple for current models. Perhaps if you’re searching for secondhand and not sure ask on here with links for what you’re looking at