Is there a good book on loudspeakers that breaks down what in a driver likely gives it what characteristics. Like stronger field weaker field shorter pole looser suspension traits being things like box size efficiency etc. I'm sure there are lots of closely held secrets but there must be many industry wide known principles.
There are a couple of books that are the bible of the electric motor industry. Other industries have similar things. Is there a book for loud speakers that's like Rosenberg for electric motors