I just got my grand master 500 yesterday and all I can say is HOLY S**T. The speakers already sound amazing right out of the box... I can't imagine what they will sound once broken in. I work in an electonics store where we sell mid to high end kef and other really good and really expensive brands. I have to say that these rival anything that we have in the store and they are a fraction of the cost. The one problem I am having is placing the sub. I can not find any spot in my room where it sounds good. Outside my house the sub sounds amazing (Im sure my neighbours already hate me) but I just cant find a sweet spot for the room. I tried doing the "sub crawl" with no luck. Anyone have any suggestions that may help with this?