I had a demo today of the Kef "egg" system and am intending to buy it to free up space in the living room. However my system consists of a Naim pre-power combo and a Yamaha E800 processor, so I am not sure about how best to connect the subwoofer. I understand that if I connect it to the low level sub out on the processor I will not benefit from it when playing audio only through the Naim. If I connect it between the the left/right speakers and the Naim using high level, how will movies sound compared with using low level? Will it suffer and if so could I easily have both connections set up and switch between the two? Thanks for any help.