Which setup would play louder and hit the lows better?
4 12" Fi Qs
2 Hifonics BXI 2010d amps (2 subs per amp wired down to 1 ohm)
A ported enclosure tuned to 30Hz with 2.2 cubes of airspace per chamber.
OR
2 18" Fi BTLs
2 Hifonics BXI 2010d Amps (One per Sub wired down to one ohm.)
A Ported enclosure tuned to 30 Hz with 5 cubes per chamber.