As stated, this is not pure copper...it is copper clad aluminum (CCA). Cost is less, but that's because aluminum is cheaper and more resistive than copper. I work as an engineer for a power company. Lower voltage distribution power lines used to often be made from pure copper - however it is more cost effective to use aluminum or aluminum alloys... but since the resistance is greater for these wires, the wire gauge is increased - so you need thicker wires to accomplish the same thing...however this is mo..
I am no pro but I can say that I can not tell the difference between this speaker cable and the more expensive stuff. I've been doing this sort of thing for many years and always used the more expensive cables but a friend, who is in the business, told me recently that copper wire is copper wire, no matter what company you buy it from and as long as the wire is shielded properly, why pay more? Made sense to me so I tried it and guess what? He was right! I don't have test devices to check OHM loss and all th..
