I have a phoenix gold ti 12d and i'm wanting to build a 2.75 cu/ft SQ box tuned to 25hz. which are the specs. that site recommends for it. i have a mtx te 1501d that will be powering the sub in my 08 4dr toyota tacoma. i'm not the greatest with math and formulas so any help to make this buildup as painless as possible would be great. thank you