If I were going to use 800-900w total into 2ohms, what would be a better choice if we were talking low freq. extension: (1) FI Q12 D1 in 2.47-2.65 cu. ft. tuned to 26hz or (2) Dayton RSS315HO in 1.25cu.ft (each) tuned to 29hz. I want it to sound good and go low while still being loud enough for...