Can I use the 12 guage Duelund tinned wire for a 25 foot run of spekaer cable

Ok thks- so before I order these long runs- is Duelund the best DIY to get- I have heard good things about VH Audio- If it matters I will be using it to run a MCintosh 601 mono's( 600 watts) and the Dunlavy V's speakers- just want to make the right choice before I spend the $$- thks

thks- why such a price dif. between the polycast and the cotton/oil hook-up wire?

also isnt that for power cords??- I can use it for speaker wire??- thks so much-