Cali's Sordo is a killer powerviolence trio that most definitely takes it back to the roots with a harsh and noisy outcome. Here's some super-distorted, bass-driven grind punk madness loaded with pulverizing drums and ferocious vocals. These guys won't leave you disappointed. Everything I could hunt down is posted below, please let me know if I'm missing anything, their discography is overwhelming! Dig.
Sordo & Crowhurst - Girl : A Collaboration (2013)
Tactical Precision Violence 7" (2012)
Collection CD (2008-2012)