Hi, I was wondering if anyone could advise me as to which of these speaker systems is the best. Either will be connected to a pioneer vsxd814 a/v receiver. Ive been led to believe that the panasonic set has the edge because its frequency response is identical for its front and rear speakers which is important for dvd-audio?!? Can anyone point me in the right direction or advise on alternatives to these speakers, both retail for around £500 to £600. Thanks.