I am going to purchase a 15" Fi BL... mobileman is going to make me an enclosure roughly 3.8ft3 tuned at 30hz. i am going to power it with a cadence txa1000d which puts out 1000watts at 13.8 volts. what options should i get for this subwoofer? i want it to be as loud as possible with the tuning and amp i have. i honestly don't know what the options even mean.... P chmafer, cooling, flatwind, etc... etc... could someone explain the options to me? thanks.