can i use the onkyo HTX-22HDX as a speaker system for my pc ? i want to use it more for music rather than games or films the pc only seems to have the small 3.5mm jacks on the motherboard and there does not seem to be any of those type connections on the back of the onkyo sub/amp ? so i assume i need to get a 3.5mm connection to RCA white and red connections that will fit in the back of the onkyo ? will this sound ok for music ? streaming from spotify ? or should i go for something else ? they have it for sale on amazon for £191 inc del at the moment so would like to get it if it will work with my pc would the below be ok and is that what i need ? http://www.pcworld.co.uk/gbuk/belkin-3-5mm-to-rca-stereo-cable-2-1m-for-iphone-00779031-pdt.html 3.5mm end into the audi connector on pc motherboard and rca left and right into onkyo amp ?