Chris Tsangarides was a Grammy-nominated producer and sound engineer, and when I first clocked his work in the late 1970s, it felt like someone finally figured out how to bottle voltage. I followed his early years at Morgan Studios in London, then watched him come into his own through the late seventies and early eighties with bands like Judas Priest, Thin Lizzy, and Tygers of Pan Tang. By the mid-1980s he was shaping the bite of heavy metal and hard rock for acts such as Anvil and Gary Moore, keeping things raw but never sloppy. In the 1990s and beyond, he proved his ears hadn’t aged a day, working with Black Sabbath, Helloween, and other lifers who needed weight without mud.