Saturday night’s headlining performance at the 9:30 Club by Sleigh Bells rang familiar for anyone who has seen them before. There was the darkened stage, lit with intermittent flashes of LED bank strobes. As thunderous chords of Black Sabbath’s “Iron Man” began, Derek Miller and Alexis Krauss manifested. The wall of supplemental Marshall amps behind them emitted the piercing intro of “Crown on the Ground” as Krauss began to pant. Déjà vu set in.