What about a RE Audio SRPRO15? FS is down at 23 Hz, Vas 203L, Qes .45, QTS .41. Looks a lot better on paper, right? $6 cheaper too... But less power handling.
RE AUDIO - RE PRO
BTW, when a sub has 2 voice coils and a 500w rating, does that mean 500w per coil or 250w per coil?
CHAD