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The PAC-RCB is designed to support cabinets, shelving, Headboards, Televisions, Speakers, Nightstands, Closet Organization, Grab bars/handrails, and almost any other item that is mounted to a wall. The PAC-RCB is used on any wood or steel application where Resilient channel is installed.
A typical wall with RC channel can not support cabinets. The cabinets have to be mounted directly to a wood backer or to the stud directly. This short circuits the wall and reduces the acoustical performance to below min code. Adding the PAC-RCB to the wall supporting the cabinets weigh and increase the walls performance back to the original STC.