Interview: Bang & Olufsen Designer Oivind Slaatto Reveals The Story Behind Creating The Beosound A9 Danish audio super-brand Bang & Olufsen has been innovating for almost a century. The company's designs are groundbreaking, none more so than the Beosound A9, a circular speaker created by Oivind Slaatto and the Danish company. Here Slaatto reveals his thoughts behind this iconic design.