LE14 as sub, mounted in down firing mode
Quote:
Originally Posted by
edgewound
Not a good idea. The cone is rather heavy and gravity won't do it any favors. Best in a verticle orientation.
Well, not mounted in a verticle orientation continues over a long time to completely stretch the spider further out permanantly. I have seen four of each new-in-the-box ... Altec 515-B & JBL 2245 (?)18 inch speakers long-forgotten in storage, face -up in a dealer's back room, where the spiders had streched out a good 1/2 inch permanently. I got them for $100 each. I kept them face-down for many months until the spiders reformed perfectly flat. I am not sure it is safe to use MEK to soften the JBL phenolic spider; for one thing, there is a foam plug in the motor pole piece which reverts to gooy polyurethane eventualy & will creep in the voice coil gap. Gravity did play its part gently. New foam was required on the JBL's, and MEK did help on the Altec "gooped" surrounds.
cheers herki the cat