Light-Echo Dave, I used 1/2" MDF for both the baffle and the Grill. The radius at the bottom of the baffle is 10". Finished the baffle with six coats semi-gloss rattle-can Rustolium. As for poly-fill stuffing, I used Acousta-stuf...placing it where Danny has indicated in the Spec sheet he included in the kit. I used about 1/2 lb per speaker, maybe slightly less.
Danny, thanks for the tip re: placing foam in the bottom of the port! I built my N3's ported in the front because I needed to keep these somewhat close to the wall but now I see I have some 'sperimenting to do!
