West Valley City ⢠A decade ago, Silencerco co-founders Joshua Waldron and Jonathon Shults ran a sound-recording studio for musicians, including Utah pianist Paul Cardall. While chatting periodically about Waldronâs passion for hunting and the damage he believes it has caused to his hearing, the boyhood friends from American Fork became convinced they could build a better suppressor for firearms. âAll hunters as they go into middle age have hearing loss,â said Waldron, now 39.