I have never heard any of these subwoofers and would like some help choosing which one would be the best bag for buck.

JL 12w6. $300 used great condition
JL 12w7. $700 open box
AF12. $480
SI RM-12. $430
CLARUS c12SW. $350
AE SBP 12. $319, or $469 with apollo
Fi neo Q 12. $469