JBL C508GTi-mkII (c508gtimkii) GTi Series 5-1/4" 2-way Component
jbl 508 gti in 88273 Fronreute for €50.00 for sale | Shpock
Jbl PRO POWER C608GTi Manuals | ManualsLib
Inside of old JBL 508 GTI, I am unfamiliar with the electronics going on here. What can I do with it? Will it still do what it's supposed to? And can someone