I didn't. I just grabbed them. These are JBL professional sound reinforcement speakers. Here is the information. All the drivers work, and they sound like cool JBLs. I am going to have to strip the vinyl, cast whole new sections of cabinet (it's called 'particle board' for a reason!) in resin, then recover them, probably in black vinyl for the JBL pro look (they are covered in woodgrain oak vinyl now). The cracked 'babycheek' horn sounds as good as the other, and I think I can cast the missing chunk. All four 8 inch woofers (with pleated cloth surrounds and huge cast frames) are perfect.