Hello all, First post here, so be kind to an old-schooler... Looking to do a bed box in my Chev 1500 step side. Max dimensions I've got are: Width = 48 Height = 18 Depth = variable I'd like to go with 2 BTL 12's, dual 1ohm. Both subs will be powered by a RF T2500. Wondering if one of you fine gentleman would point me in the right direction with: Net Vb for common chamber enclosure... 2.65 cu.ft. per sub? Optimum vent dimensions based on a 16.5" vent height? Hopefully I provided enough info... I certainly don't expect a full design, maybe just some guidance. Thanks guys, C