Copper Speaker Cables 10 12 14 16 18AWG 2 Core Wire Amplifier Home Sound Systems | eBay
Deadbolt Speaker Wire with Banana Plugs, 12 AWG — Sewell Direct
10 GAUGE WIRE RED & BLACK 10 FT EA PRIMARY AWG STRANDED PURE COPPER POWER REMOTE | eBay
Archimago's Musings: MEASUREMENTS: NB Cables "The Vigilante", Raymond Cables, Canare 4S11, Slinkylinks Silver Speaker Cables. (And related thoughts on audiophile "snake oil".)