Since the days of Black Sabbath and Deep Purple, hard rock and metal have splintered in countless boundary-pushing ways—and the evolution includes the ways in which they use gear. Here we've assembled highlights from our Rig Rundowns with some of today's most interesting purveyors of extreme music—from the shirtless experimentations of High on Fire's Matt Pike to the crushing prog-rock virtuosity of Steven Wilson and Guthrie Govan. After whetting your appetite with the photos, details, and videos, be sure to visit here to dive in and watch more Rig Rundown clips.

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High on Fire's Matt Pike
Mastodon's Brent Hinds and Bill Kelliher
Steven Wilson & Guthrie Govan
Russian Circles' Mike Sullivan & Brian Cook
Meshuggah's Fredrik Thordendal, Mårten Hagström, & Dick Lövgren