With the release this week of their much-anticipated second album, “Reign of Terror,” the alternative duo Sleigh Bells have a chance to show the world they’re more than a one-album wonder.

The group’s first album, May 2010’s “Treats,” showcased a loud (very loud) rock ’n’ roll-inspired sound, juxtaposed with the sweet vocals of lead singer Alexis Krauss. Some critics said that the Brooklyn-based band was all noise and no quality. But fans loved their sense of joyous rebellion, as evidenced by the popularity of their song “Rill Rill” (which even landed a coveted spot on “Gossip Girl” in the fall of 2010).

“Treats,” whose one-liner songs pulsed so powerfully in the minds of its listeners, was a loud, bold statement. Could “Reign of Terror” be anything more than a sorry replica? The answer is a resounding…maybe.

This time out, the duo—which also includes Derek Edward Miller—has turned down the volume, though “Reign of Terror” is still plenty noisy. The songs are longer and more authentic-sounding. “Reign of Terror” has an almost Black Keys-esque sound, rock ‘n’ roll with softer emotion thrown in.

But the quality that makes Sleigh Bells unique—wall-punching rock paired with sweet, surreal-sounding melodies in the background—is ever-present on “Reign of Terror.” The album’s title announces straight-up the intended tone—brutal and harsh—and the lyrics to songs like “Road to Hell,” Demons” and “Born to Lose” live up to the overall mood of adolescent alienation and angst. Some have a powerful message, especially “Comeback Kid,” whose unforgiving lyrics—“I know it’s hard but you’ve gotta deal with it”— are paired with intense instrumentals.

But angst is one thing—whininess is another. And sometimes the more melancholy songs, like “Road to Hell,” drone on for too long. The songs sound more ethereal and have less unique character than on the first album—they can blend together after a few listens. The overall tone also seems a bit muted, less free than on “Treats.”

If you want high-quality, classic rock ’n’ roll or astonishing vocals, Sleigh Bells might not be your jam. But if you’re looking for an anger-relieving scream session and even a bit of uplift, give “Comeback Kid” or “Born to Lose” a listen. Just don’t expect quite the new sound and badass flare of “Treats.”