DON'T use this cab with the Behringer head. It will certainly damage the speakers (If they are original). The Behringer heads have 'Ultra Bass' a bottom end extender and are notorious for blowing up speaker cabs that are rated at even 450 W R.M.S.
Now I'm not saying you couldn't plug it in and make a little bit of noise but it would be really iffy.
You need a modern speaker (system) which is rated at least at the output of the head (450W).