Originally Posted by NEO Dan
Have you called Paradigm, or contacted your dealer? You bought a retail product it should be backed by the dealer and manufacturer. You should not have to DIY service the product on your own.
It may be out of warranty. Most commercial subwoofers carry only a 2-5 year warranty on the driver. If still within warranty, certainly, contact the dealer from which you purchased it, or the manufacturer.
If out of warranty, here's what I would suggest, if you don't want to spend money to buy a new woofer from Paradigm. Remove the dust cap completely, but gently. If it's partially detached already, the rest of it should come off without too much trouble. Then re-glue it to the cone. To do this, follow these steps:
1. Take a short piece of 1" wide masking tape (or painter's tape - anything which can be removed relatively easily) and fold it into a T, with the top part of the T being sticky and the sides not. So basically, fold it in half and take the open end apart. Then stick it to the center of the dust cap, making a nice 'handle'.
2. Apply a small bead of glue underneath the entire perimeter of the dust cap's outer edge. Woofer rebuilders use a special concoction, but Elmer's standard white glue will do the trick when that isn't available.
3. Place dust cap on center of woofer cone and let dry, then remove the tape.