I'm current channelling my wall in readiness to put in some Kef ceiling speaker that will act as my surround speakers. I've run lengths of QED Silver Ann XT cable for the main speakers and zone 2. But I thought I'd check I wasnt wasting money or great wire on the surrounds? Do the surrounds (ceiling mounted) and the sub still get the benefits of good cable? I think the answer should be yes but I'd thought I'd check.