Modern effects technology and musician ingenuity has made the power duo a mainstay of metal. One of our favorites is Southern Lord's EAGLE TWIN, a band that we raved about after they opened for SUNN O))) last year in Eagle Rock. Here's a video of them performing at our old stomping grounds - Vintage Vinyl in Fords, NJ. But while the sound here is decent, you must allow your tympanic membranes to be direct exposed to this wall of sound. That opportunity presents itself this Sunday at Power of the Riff.