With ears increasingly opening to the emerging electronic sounds of the third world, globetrotting beatmaker Filastine should have been poised to make a gritty, bass-heavy, sonically multicultural opus. Instead, Dirty Bomb is a bit of a schizophrenic mish-mash. With sounds from the Middle East, Latin America, the Balkans, and beyond, it’s clear that Filastine went to great lengths to cull samples and collaborate with artists from the far corners of the planet. Yet that only makes his failure to synthesize that raw material more disappointing. Even on tracks where the dubstep-flavored production is on point (“B’talla,” “Con Los Manos En La Masa”), the guest vocalists’ sub-par performances quickly sour things.