ok i jus ordered a 12" mag from sundownz.im gunna be sending it 1200rms. want to be loud, but sound pretty good (65 spl/35sq) however i need some help with the box plans. i dont know what kinda of ported box this sub will be best in , for what i want to achieve( air volume, port length, tuning, etc) car is a ford explorer sport trac. max dimensions are 22W x 17.5H x however deep needed. i would really appreciate if someone would help me with the plans, cause i can build a box alright but making box plans really confuse me.