InfoComm 2018: Dana Innovations Features the Sonance ProSeries of 70-Volt Commercial Speakers June 11, 2018 | Home / June 11, 2018 rave-video / InfoComm 2018: Dana Innovations Features the Sonance ProSeries of 70-Volt Commercial Speakers InfoComm 2018: Dana Innovations Features the Sonance ProSeries of 70-Volt Commercial Speakers