i have searched the type r sticky but can't find the answer to this.my question is i have 2 12" type r's and i was going to put them in a downfiring box that is 1.5 cf per side.it is a little bigger than alpine specs call for but i already built the box for some kicker cvr's and it sounds great with them.i know everyone is gonna say go ported but i don't have the room to do it right.thanks for any comments
