Decibel Magazine have announced the details for their 2018 Decibel Metal & Beer Fest. The event will take place at The Fillmore in Philadelphia, PA on March 31 – April 1, and it will include: At The Gates, Monster Magnet, Pallbearer, Integrity, Evoken, Full Of Hell, Spirit Adrift Carcass, Mayhem, Repulsion, Dream Death, Sumerlands, Spectral…