My dad recently gave me a pair of these old JBL speakers as him and my mom are moving to México for retirement. I don't know much about them other than they
JBL L52 Classic (Blue grilles) Bookshelf speakers at Crutchfield
Vintage JBL c36 Speaker Information?
Vintage JBL L100 Century L100 Loudspeaker Floor Standing Speaker | Checkered Records Record Album Store Aurora IL Naperville IL