A question for this house full of those who know. . . . Is there a procedure to check a classic speaker ie; JBL L-112 to determine if it meets original specifactions other than listening to it???
I realise that a speaker is not very complicated as far as its construction but after billions of pulses that produce sound what wears out???
I would think the magnets, cones, surrounds etc. would weaken with use and age, is there a test or procedure to check for this??
Thanks for your help.