Hi ive a kef 2005.3k2 kef 5.1 setup with a yamaha amp RX-V667. Love the setup but i love my music too so if i moved the kefs front L&R to use as 7.1 and changed the fronts for better stereo speakers for say example cambridge audio's S30's just for front L&R rated at 100w would these drown the centre kef out as im thinking when using for 5.1 or 7.1 movies? Like the idea of having some decent but small fronts for direct mode for music. Will i notice much difference between the kefs i have and say the S30's?