Critical Mass is the fourth studio album issued by the alternative metal band Ra. It was the group's first studio album publicly funded via Kickstarter. The album was made available for streaming via Loudwire on October 7, 2013. This is the band's first album since its debut From One to feature drummer Skoota Warner. Track listing Personnel Ra Sahaj Ticotin – lead vocals, guitar, production Ben Carroll – guitar, backing vocals P.J. Farley – bass, backing vocals Skoota Warner – drums Additional Travis Montgomery – guitar (track 10) Paul Logus – mixing References 2013 albums Ra (American band) albums