3or4 DVC on 2 DD CM1 amps

[dog24fret]

Have a question on how to wire 3 dual 4ohm or 4 dual 4ohm subs to Digital Design CM1 amps.I am looking at 3 per amp at 1ohm but keep getting confused haven't work with DVC much.I can go to 4 subs per side if need be, prefer 3 per side ported.

6 HIFI12D4(8 ?)

1.75 cubic feet min per sub 2.25 per sub max, ported at 30 hertz ?

All of the wire diagrams i have checked out are all over the place on ohms.Is it a have to deal to use both coils

or can I use 1 coil per sub without changing the subs parameters.The last part is it better to separate each sub.Or one box with bracing in it with a 3inch port per sub.Thanks for any help with this.This is my first wall type build on my own.As for what I'm looking for is hard deep bass.It's going to be loud anyway so just as deep and hard as I can get with these subs.Oh this is in a 97 Ford E150 daily driver.

I know these questions may get old for the seasoned audiophiles.I really need someones help with this.I just hope I said everything correctly if not rag me a little so I will do it right.