Grammy-nominated drone-metal duo Sunn O))) are bringing their seismic low-end rituals back to the US, announcing three headline shows set inside some of the country's most storied concert halls.

The influential duo have confirmed dates in San Francisco, Los Angeles and New York, each taking place in historic venues better known for elegance than ear-splitting volume — a contrast that's long been part of Sunn O)))'s mystique.

The tour kicks off on March 30 at Regency Ballroom in San Francisco, CA and wraps up on April 25 at Roseland Theater in Portland, OR.

Key supporting acts will accompany the group throughout their eight-date trek.