30 31 something like that ...ya the guy i got the hx2 15's from flipped his truck and the subs and box landed face down on the roof and fucked the spiders one played when i got them but not to long so i wanted to get recones for them but wanted 18's so i thought about have them built into 18's since back in the day rockford had some 18's with a motor close to thos ...but what would you charge to build another 8 like the one you built for your self ..or better yet a kit so i could try my 1st recone