Lean in to Mandolin Orange’s new album, “Blindfaller,” and it’s bound to happen. You’ll suddenly pick up on the power and devastation lurking in its quietude, the doom hiding beneath its unvarnished beauty. You’ll hear the way it magnifies the intimacy at the heart of the North Carolina duo’s music, as if they created their own musical language as they recorded it.

Due Sept. 30 on Yep Roc Records, “Blindfaller” builds on the acclaim of Mandolin Orange’s breakthrough debut on the label, 2013’s “This Side of Jordan,” and its follow-up, last year’s “Such Jubilee.”Since then they’ve steadily picked up speed and fans they’ve earned from long stretches on the road, including appearances at Newport Folk Festival, Austin City Limits Fest, and Telluride Bluegrass. It’s been an auspicious journey for a pair who casually met at a bluegrass jam session in 2009.