Quote Originally Posted by VolvoHeretic View Post
And just in case you want to build a true round-back speaker with bending plywood. We used to build round drywall shower enclosures like this after laying 1/4" gypsum board on dampened concrete overnight.
Yep, lots of options.

At this point though and [hopefully] all things considered, narrowing up the baffle a bit to extend the curve around enough to have no parallel walls is worth the slight increase in baffle step frequency. Ideally want the curve to be > 12 deg included referenced to the baffle assuming it doesn't shorten the baffle to < 34.5" i.d.. If not, then what is the max included angle?

TIA,

GM