better or worse

[HotRodHam]

wat'd be better 4 12" Fi BTLs fully loaded running off of 1 AQ 2200D each or 2 15" AA SMDs running off of 1 AQ 3500D Each.

will be in a fiberglass box ported to 33 Hz with aero ports

[tonedeaf]

Noone can tell you whats going to be 'better'. Its 99% based on the quality of the install and design of the box. Maybe 10% equipment, 90% install. And by 'better' you want louder, sounds better, etc. etc. Do you even have the electrical for that kind of amperage? Do you know what all it will take? Far too many variables to really tell. You could tell us how much space you have and we can give you the best suggestion based on your max space available, as 2 15s in correct airspace > 4 12s choked with too little airspace.