As previously posted I have swapped my Mission floorstanders and M7C2 centre for three Kef KHT 9000's. One big thing I am noticing is that sound from the surround channels seems much louder. The surround effects particularly in Prologic II mode are all of a suden more obvious than before. Is this suggesting that the Kefs are a much better tonal match for my Mission M7D's or that they are simply lacking extra kick that the floorstanders have? The Kefs are'nt exactly feeble with suggested amp power up to 150 watts and a maximum spl of 111 db (@ 1 M) All speakers have been calibrated to 75 db.