Can someone tell me why positive (red) cable is of copper and the return (white) is of whatever? It could be sliver plated, but why is it necessary, what does it add?
From reading the Amazon description, both conductors a pure copper. The insulation on the negative appears to be white, the positive looks like it has clear insulation.
I remember decades ago buying spools of speaker cable at Radio Shack . One leg had a silver look. Strictly to identify + and - . Don't think it's any more than that.
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