The already intense roster for the forthcoming first installment of The Power Of The Riff East - recently announced to take place on September 1st and 2nd in Brooklyn - has this week been finalized.

COFFINWORM and DOUBLE NEGATIVE have both joined the lineup for day two's festivities, while almighty New York Hardcore kingpins AGNOSTIC FRONT will join the headlining acts for day one, playing an amazing set of nothing but songs from their classic United Blood/Victim In Pain releases.

The lineup for the two-day throwdown is now fully confirmed, with day one consisting of PENTAGRAM, AGNOSTIC FRONT, POISON IDEA, NEGATIVE APPROACH, XIBALBA, ALPHA & OMEGA and POWER TRIP, and day two featuring SUNN 0))), WINTER, REPULSION, SALVATION, COFFINWORM, DOUBLE NEGATIVE and DEAD IN THE DIRT.

TPOTR is an event that honors extreme music fans and musicians of all ages, tapping into a lineup that represents the forefathers, milestones and current national touring acts, while shedding light on up-and-coming and local acts. Curated by The Power Of The Riff and Southern Lord, the devastating two-day The Power Of The Riff East will take place in NYC on Saturday, September 1st and Sunday, September 2nd at Brooklyn's massive Warsaw club, boasting an incredible roster of riffcrushing artists from across the country.

A limited number of two-day passes for The Power Of The Riff East are available for purchase here. Single day tickets for both days will go on sale this Monday, July 2nd at 12 PM, EST. Saturday tickets will be available here and Sunday tickets here. Stay tuned for more announcements in the days ahead as the lineup for this behemoth event expands.

Full info and tickets for The Power Of The Riff West - confirmed to take place on Saturday, August 11th at Los Angeles' Echo/Echoplex - are available now here.