I remember reading that you put an extra "layer" on the front of your speakers and recessed the woofer. Did the Delta 15 fit into a 15" hole? The Parts Express catalog says the outside diameter is actually 15.15". I was just hoping to find out before I go and route them. I'll be using an extra layer on the front myself, but I think mine are going to look a little different than most. Thanks for any input.

Kevin