We had some control wire that was supposedly expensive so I kept about 50 feet from a control run of 300 feet that had a lot left over.

I was thinking I could wire my yamaha speakers with it.

https://edeskv2.belden.com/Products/#s=8471&r=0

its listed as audio/control/...

I think it should be fine, but would like some advice before i run it inside t he wall and have to remove it later.

thanks