Who uses grills? I like my subwoofers nekkid!

 

Dum Dum...Gum Gum...butyl rubber... works like a charm. Installer's best friend. Seals speakers, damps like nothing else, easy to work with, and to remove it....more Dum Dum!
If the cone is a bit soft after the dent removal, then a bit of paint/nail polish, or something that will dry hard, and not add too much mass will fix it up.
I just removed a huge dent in a crushed poly bullet dustcap with it.

 

butyl rubber...ok, ill check that out aswell....I cant find hot glue gun at my place so hafto go borrow one tommorow....butyl rubber....

I assume I could find that....where?

and I plan to have no grill....I would like to admire the subs beauty.

 

Ask at your local auto-glass installer...they used to use it to install windshields.
If your local car audio shop doesn't have it in stock....find a good installer!