The woofer placement is very critical in the bass region. moving the woofer up was causing at least a 3 db loss in bass and about a 3 db gain in the midrange. I showed this to a friend of mine after already telling him what it would do , still when I moved the woofer to the floor he was amazed by 3 things,A lot more bass, less midrange and a completely different tone. Well I still dont know anything,and my nature is to always question anything new to me. Wayne P. is very factual and to the point. I am just a old Audio Tech. in Indiana.