Im looking at getting a new sub to pair with Axiom m22's, axiom center 100, QS4s, and yamaha RX-V659. My room size is 11 feet by 10 feet with 8 foot ceilings, however the room is open on two sides with 5 foot archways. I currently have no sub nor any experience with them. My wife and I are mostly into music, however we do watch movies. Im not that interested in the VTF series, one to save money and two it appears this sub would mostly benefit movie goers. HSU claims the STF series is geared for music. My question is for an extra 100 dollars will I notice the difference in the 2 vs the 1?