Polar Focus Chain Shortener for Audio Loudspeaker Rigging. The ACS-281 works with Gunnebo-Johnson 9/32″ Grade 100 heat-treated alloy steel chain that Polar Focus has used for years to provide superior strength and reliability for basket hitch and choker hitch beam connections. The chain feeds through the ACS-281 and when the desired height is reached, the chain is pushed into a slot and held from pulling free by the shackle that is used to connect to the load being suspended. Height adjustment is in 0.82″ increments.
Using the ACS-281 can be particularly beneficial when time constraints of a job do not allow for accurate dimensions of roof attachment and loudspeaker locations. Also see product codes RCSA (basket) and RCCA (choker) for kits including the ACS-281.
Pro audio rigging design, roof attachment, supplemental structure, sales, support and PE stamped drawings in any US State and Canada provided by Polar Focus. Call us today for more information at (413) 586-4444.