Have you tried looking at the manufacturers website. It wouldn't be hard to find but in this case it is
www.jblpro.com
After going there I had the info you are after in less then five minutes.
All I did was enter the
speaker model number in JBL's search engine. Click on the result which brings you to the links for JBL's discontinued (vintage ) speakers. You click on the the model number which will open a pdf which contains all the info you need.
I have posted it this way instead of giving you the link as other people also ask this question so they now can find the info for different jbl speakers.