Suggest me some 12"

[528hz 0]

Well this will be my first use of Fi subs. I'm going to be running an IA 20.1 and want to run 2 12" Fi's in a sealed box. I have been suggested SSDs, BLs and Qs. I am coming from an SI Mag 15" and loved the way it sounded at 2.5 sealed, but I could use a little bit more bump. I would like to run the IA to it's full potential (1800x1 @ 1 ohm) so for SQ and SPL which should I choose between the 3?

[johnecon2001 82]

Why do you feel the need to run the 20.1 to its "full" potential? (which, btw is not 1800w - its significantly more than that).

Coming from the Mag in a sealed box.. have you ever tried it ported? It might give you what you want.