Hey KEW! One of the speakers was defective: the midrange/tweeter assembly was designed to be isolated from the woofer/passive radiators (sealed chamber). However, if I pushed on the midrange (yeah, I was fooling around with my speakers!) it would affect the other drivers (they would “push” out). Thus was contrary to what I gleaned about the construction (I don’t know if it altered the performance or not). I reported it to A4L (they would not replace the speaker because they were out of stock). KEF stepped in and gave me a new one. It was just a hassle is all (and kind of weird).