After a series of singles on Shifted's label, Shawn O'Sullivan delivers the debut 400PPM album. It's an angry, bleak affair. Even in its less visceral moments, like on the stepping metallic rhythm and Rose E Kross' muffled vocals on "New Expiration", or the dark, tranced out pulses of "Into The Heap", a gloomy sensibility hangs heavy in the air. "Sintered Bauxite" sees O'Sullivan add frazzled, droning bass to a similarly angular rhythmic workout, while "Bolling Oscillation" resounds to wild sub-sonic bleeps. For the most dance-floor friendly intense iteration of the 400PPM sound, look no further than the slamming, industrial techno of "Metabolic Grift".