You know, Ive owned my Def Tech sub for 5 years now and love it. So, I will have to put a vote down for the new Def Tech Reference subwoofer...but, $1700 might scare ya away....That is my goal sub to go along with my very near in the future Axiom HT

Pioneer VSX-1014TX-k Denon 1910 M60ti VP150 QS8 Definitive Tech PF15tl