I just turned mine upside-down. It's metal. You can tell along the unfinished edges. Tim >As far as the Headrush casing, if anyone can determine whether it's metal >or plastic I'd be curious to know. It's either the most plastic-looking >finish on metal, or the toughest looking plastic I've ever seen. Short of >melting it down to find out (don't laugh, I've done such things), I'm >pretty convinced it's metal.