Might be a silly question.............I've always understood that speaker cables for left and right should be of equal lengths? I've got some Quad Lites on the way to hook up to my Onkyo 605. Front speakers are only 4 and 2 metres from the 605, rears 8-10 metres running around the outside of the room. Should I make both fronts 4 metres or not, what cable for the rears as I need to hide it under the carpet or skirting board. The front cables will be virtually hidden by furniture anyway so doesn't have to be hidden under the carpet. Was looking at either some QED or Van Damme stuff, any good? Thanks.