My 8" sub (RE SE) speaker cone has separated from the rubber surround. What would be the best adhesive to use to repair this with? I can post a picture later on if I'm not being clear.

 

CA glue, most hobby shops carry it (cyanoacrylate)
I get bsi instacure+ thick..
Its cheap and works fairly well. dries clear

 

this is the stuff I use for cone to surround repairs....
Link.......
White Surround Dampener Speaker Repair Adhesive Glue


you can also airbrush this stuff on an old dried up looking surround and it will give
it a smooth clear flexible coating...it almost makes them look new

 

Really? I think I might be ordering up some..