PAC International, LLC is a Noise Control company that manufactures fire rated noise control products. The line of PAC products have more UL Fire Resistive Design Assemblies than any other competitor. PAC invests heavily in Noise Control Testing in both floor-ceiling (STC & IIC) and wall assemblies (STC). Consistently pushing the noise control limits in cost effective solutions for floor-ceilings and walls. PAC International, LLC manufactures innovative noise control solutions. Such as the RSIC-1 red sound isolation clip for walls and ceilings. Resilient Channel RC-Boost which simply make All Resilient Channels perform better acoustically on ceilings. PAC has an all new alternative to ceiling springs, that simplify the layout and install lead times. Pac also has a wide variety of spring Isolators for high end or loud spaces.