Boombox Mixed Martial Arts

Boombox Mixed Martial Arts, also known as Boombox Detroit and BMBX MMA, operates inside a 4,000-square-foot facility at 2871 Hilton Rd in Ferndale, Michigan. Co-founded by Kurt Cornwell, Amariah Houseknecht, and Tim Clark, the gym grew out of the MKG Detroit Martial Arts Group established by Kurt Cornwell in Midtown Detroit in 2013 before opening on Hilton Rd in Ferndale in 2016. Grappling runs under Cortex-CSG Submission Grappling and MMA, teaching Brazilian Jiu-Jitsu and Catch Wrestling under Coach Shamal Freeman, a retired professional fighter and black belt in Brazilian Jiu Jitsu, Judo, and Tae Kwon Do who also coaches the Boombox-Cortex Professional and Amateur Fight Team launched in January 2025. Weekly grappling sessions include Tuesday and Wednesday evening Brazilian Jiu-Jitsu and Catch Wrestling/No-Gi BJJ, Saturday afternoon Brazilian Jiu-Jitsu, and a Monday Women's Jiu-Jitsu meetup with Coach Lee, alongside Origin Muay Thai, the MKG Multi-Martial Art Method, Kalis Ilustrisimo Eskrima, Tribal Flow Yoga, Group Fitness with Coach Matt Wynne, Detroit THAIgers Youth Muay Thai, and Activate Youth Martial Arts.