What gauge actually needed?

[bigone5500]

For a 5000w system do I need 8ga speaker wire or will 10ga be sufficient? The subs came with 8ga pre wired but I was told by Knuconceptz that 10 is fine...??? I don't know.

[Joe X]

I guess you are not giving a lot of information but in my simplistic view just fail on the safe side and get 8ga, if 10ga is fine, 8ga will be finer. I don't think the price difference is going to be an issue.