Like her pedalboard, Nancy’s amp rack resides offstage. A Peavey-era Budda Superdrive 30 II head is her main amp, and a Fender ToneMaster serves as a backup. Each head drives its own Orange 4x12 cab loaded with 30-watt Celestion speakers.

Premier Guitar’s Shawn Hammond met with Ann and Nancy Wilson’s guitar tech, Jeff Ousley, lead guitarist Craig Bartock, and bassist Dan Rothchild before Heart’s show at the U.S. Cellular Center in Cedar Rapids, Iowa, on March 21, 2015. Ousley—who’s been maintaining the Wilson sisters’ gear (and making them mean cups of coffee) for more than 20 years—walked us through everything from Ann’s custom Martin acoustics to Nancy’s vintage SG and Tele, while Bartock and Rothchild shared their cool customized instruments.