So check this out. To make a long story short, the wife discovered the dimensions on the sub woofer and nearly flipped. Our space isn't that big and to her credit, it would've been hard to place the sub near the fronts, or even in between the sofas (after wiring over a door jam). I agreed to check out the BIC v1220 at Best Buy, and shocker, they didn't had any there. A Magnolia sales guy (God bless him btw) demonstrated a SC4000 ($800 btw) sub and went on and on about how price shouldn't be a factor on the purchase *cough* *cough*.... We even listened to the smaller B&W sub which would pair w/ my 686's and it wasn't nearly as clean - that said it might not have been dialed in right.
SO! we go to the Magnolia Store (much better than Best Buy - shared ownership) and it turns out they're having a clearing sale... humm. The guy spends an hour trying to duplicate my bi-amp 686 set up with no luck. While he's working on that the wife and I walk around and go by a boxed SC6000, which retails $1000 on sale for $800. I tell the guy we'd take it for $400. Don't hate me but! the guy comes back and says he can do it for $650/$625 - I naturally suggest a clean $600, and BOOM! out the door.
Hooked it up last night (only 13x13x13) and holy f-ing crap! This is my first sub. Having the lower sounds blend seamlessly into my mid to upper tuned 686 is a great feeling. Of course I needed to do a movie sound track too. On my Pandora movie sound tracks station, as if on que, the Dark Night and then Inception came on... I had no idea... this is a game changer. The super low note on Inception has still got me grinning like a little kid.
So as it turns out I didn't get a lower priced value sub; I probably got an over priced sub for a value deal. Either way many thanks to all the help received on this forum, and my wife! Can't wait to get home and destroy the neighbors.