IS the ring around the midwoofer removable?

[dogbait]

Why not?    

In all seriousness, because I was wondering if yellowing rings can simply be replaced.

Also because I am thinking of some potential mods that may actually improve the Phantoms.  Non destructive mods - but one may involve that ring.     I modded my volume remote and like it a lot more now.

I've seen a few pics with the side plates just behind the woofer which say Phantom removed. There appear to be screw recesses underneath and a label saying 'Ere be dragons!'.

Good luck, let us know how it goes!