Paradigm Subs, Suggestions ?

looking for some detail and definition in a sub.
was looking at 2 sub 12`s or sub 25 or maybe a sub 1 ?
right now i`am running a servo-15
any suggestions ?
I have a Paradigm Sub 1. Very very fast Sub. Excellent detail.
I think it is excellent. I had a ML Descent before the Sub1.
The Paradigm Sub 1 is better.