Using cca wire for grounds

[bernee69]

Was adding more grounds and run out of ofc wire, and I have plenty of cca wire didn't know if it would work, just for grounds?? What kind of difference it would make, have on car audio ??

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[spokey9 5,000+ posts]

Was adding more grounds and run out of ofc wire, and I have plenty of cca wire didn't know if it would work, just for grounds?? What kind of difference it would make, have on car audio ??

I don't think you'd hear a difference...but if the other grounds and power wires are done in copper, I'd do the rest in copper..

Aluminum has a higher resistance so you'd need to go at least one size bigger to get around that...and Aluminum also corrodes faster so you'd need to change it out sooner

 

[dragon.breath 10+ year member]

If you have a bunch of it, use it. But just be very aware that you need to use more cca in comparison with copper.
I had cca from my rear battery to the amplifier ( about 30 inches of positive and 24 inches of negative) and had a .7 volt drop between battery and amplifier. Changed to the same size of copper and now have a .1 volt drop.

 

[metalheadjoe 10+ year member]

"No more plastic straws in paper, just paper straws wrapped in plastic".
- Tom Macdonald

 

[audiobaun 5,000+ posts]

Id run OFC all or none. CCA corrodes much quicker and takes a much larger size and strands to meet the OFC sizes as stated. I wouldnt recommend mixing your wiring. It could create several issues in the future

 

[nauc 10+ year member]

fwiw...

Oxygen Free Copper (OFC) vs. Copper Clad Aluminum (CCA) Cables

If you care more about saving space, far higher efficiency, and lower heat levels, copper is the way to go. If you want a more economical option and don’t mind a comparatively larger gauge wire (or multiple smaller ones), CCA is what you’ll probably go for. Both will get the job done if run in...

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