My last box was 4.25 @ 33Hz. WINisd showed a gain of 3.5db. My next one (possibly another single XXX15") will be closer to 6cu/ft @ 35Hz, and that shows a gain of 6.2db.
Would that practically be as loud as 3 15" subs in a sealed enclosure? I also thought about 4 XXX10". I heard a set of the SE10s and I dont think thats what Im looking for.
Bill T.