the speakers are going in a night club which is why they need flow,its a permanent install. I will be using three attachment points on each cabinet. i have found plenty of chains rated for what i plan on doing weight wise, all with remarks that say not for hanging overhead. when researching chain for hanging, it is super mondo 4400 pound rated and like 8 bux a foot. i also will be running saftey wire in the same manor i am running the chain to just be double sure. i understand the liability in you telling me "yeah sure as long as it says it will hold the weight" as well as the liability of hanging speakers 20ft in the air give or take. just asking theoretically of course