Amazon.com: Monster XP Copper Clad Aluminum (CCA) Speaker Wire 12 Gauge Cable 50 FT Spool - Ideal for Home Cinema Cables and Car Audio Cable : Electronics
CCA power wire over time, this is Sky High in particular, not that it matters. This is one of many reasons to stick with OFC, tinned OFC being even better yet. :
GearIT 14 Gauge Speaker Wire CCA - Copper Clad Aluminum - Home Theater
CCA cable 101: All things you should know
copper enameled clad aluminum wire, 0.2mm, CCA wire – elecify