Two passings of note Sept 21, 2018 12:05:36 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by speakertom on Sept 21, 2018 12:05:36 GMT -5 David Clark, the developer of the DUMAX speaker driver testing system and Ron Tipton a long time contributor to audioXpress have both passed away.