Hi - as much of a heads up as a question. My Yamaha YSP-800 was suffering from a sort of low level digital humming noise that would change in pitch now and again. To cut a very long story short it turns out to be the power supply from my router. So check yours if there is any hum on yuor stereo or tv... Anyway, here's the question - it's going to be very hard to separate them so is there any way I can shield the power supply? Roofer's lead? Thanks.