Ok so my friend has two RE REX 8's laying around and he wants to make a box to get them loud. We have built ported boxes, but I'm just wondering if there's any other type/style of box that would get these two 8's as loud as possible. Our main goal is maximum SPL so SQ doesn't matter. We have considered making a 6th order bandpass or t-line boxes, but we don't have much experience with those types to know if they will get the job done. So... what box in your opinion will get these 8's as loud as they can get?