This JBL disease is taking time away from the car hobby...
I took a pair of L65's out to the shop to troubleshoot a component problem.
The odds-on favorite is a tube in the MC240.
The particleboard on the bottom of the L65's is showing some serious deterioration problems after 30+ yrs in challenging environments - inside, outside, damp, smoke-filled, etc. Though I have some experience with wooden boats, pinball machine cabinets and car bodies speaker cabs are not my strong suit.
Do I use a 2 part epoxy thinned 10-20% with xylene as a 'penetrating epoxy' for the first coat? Then follow up with 2 part body filler or thickened epoxy for the gaps / imperfections? Or just replace with real wood? And the paint?... it looks like low gloss enamel so I'm in my realm with finish coat.
The bottoms have been problematic since birth. The particleboard edge sits about 1 1/2 inches back. So the cabs have been front / top heavy forever. They are prone to falling fwd on irreg surfaces. What have others done to solve this problem. There may be some welding in this yet... a handle and front edge foot would be nice.