Ok, so here's my setup... Recever: Onkyo TX-SR605, Front Speakers: Klipsch (Synergy) F-3, Rear Surrounds: Advent Pearls No center speaker, but the F-3's create a very good "Phantom" Center in my opinion. Anyway, my question is would it be better to go with 2 JBL SUB-12's or 1 Klipsch...