So AV123 decided to extend the BF sale on two MWF-15 which drops them down in the same price range as two SVS PB10 after shipping it looks like it would be around $200 more to go with the two MWF-15. I guess my question is, is this a lot more sub for the money, and is it worth it? I have the money to spend since they aren't for me. These are going in an ~4500 Sqft room. The owners seem like the type that would enjoy quantity of bass over quality. The speakers are KEF IQ series (IQ9, IQ6c, IQ8ds, IQ1) Has anyone owned/listened to both of these? Thanks, oh and I need to get these coming today...