DOUBLE VISION

IT'S Stereo vs. Stereo. The original Stereo nightclub on West 29th Street is up in arms over another Stereo club opening up tomorrow on West 33rd Street in the former Octagon space. "They're impostors. We've been so successful and they're coming in trying to ride on our coattails," fumed West 29th Street owner Mike Satsky. His lawyer, Bruce Bronster, has asked the U.S. Patent & Trademark Office to force the copycat club to find a new name.