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. :
LIS Audio How-To: Choosing The Proper Wire – LIS Audio Blogs
Why Not To Use CCA Amplifier Wire
What you should know about CCA and OFC Wire
CCA vs OFC for wiring project | DODGE RAM FORUM - Dodge Truck Forums
CCA wire vs OFC wire, my experience | Electronics Forum (Circuits, Projects and Microcontrollers)
CCA vs. OFC 1/0 Power Wire - Is Cheaper just as good? Definitive Results - YouTube
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OFC 1/0 (Oxygen Free Copper) VS. CCA 1/0 (Copper Clad Aluminum)
CCA vs. OFC Power Wire Test - KICKER UnMASKED - Shorts - YouTube
KCA Kable 1/0 Ultra Fleks Blue CCA Power / Ground Cable - Merchandise
CCA VS OFC WIRE WITH JOHNATHAN PRICE - YouTube
GearIT 14 Gauge Speaker Wire CCA - Copper Clad Aluminum - Home Theater
16AWG Speaker Wire, GearIT Pro Series 16 Gauge Speaker Wire Cable (500 Feet / 152 Meters) Great Use for Home Theater Speakers and Car Speakers, White - Walmart.com
What to Know About CCA Cables? - World Leader in Low Voltage Cables
What is OFC? - World Leader in Low Voltage Cables
Difference between OFC and CCA Wire – CT SOUNDS
LIS Audio How-To: Choosing The Proper Wire – LIS Audio Blogs
CCA Power Wire Versus OFC - Spiritcar
LIS Audio How-To: Choosing The Proper Wire – LIS Audio Blogs
OFC vs CCA Wire Demonstration Test | Kicker @ CES 2014 - YouTube
