August Burns Red established themselves as a devastatingly heavy and technically stunning metalcore force with their debut, Thrill Seeker, in the mid-'00s. “Speech Impediment” reveals hints of prog in its breakneck, dizzying guitar work, while “Fault Line” drives through savage thrash passages propelled by Jake Luhrs' guttural growls. The moody ambience that introduces “Marianas Trench” soothes before quickly turning tense with rapid waves of drums, careening into an all-out assault of brutal kick blasts and razor-edged guitar heroics over multiple speed changes.