Black Obsidian Sound System was established in the summer of 2018 with the intention of bringing together a community of queer, trans and non-binary black and people of colour involved in art, sound and radical activism. Following in the legacies of sound system culture they wanted to learn, build and sustain a resource for our collective struggles. The system, based in London, is available to use or rent by community groups and others with the purpose of amplifying and connecting them.