AcoustiBLOK®, the revolutionary sound abatement product. ( A typical 75mm gypsum stud wall is usually 32 to 35 STC. Acoustiblok® installed in the same wall is lab certified at an amazing “STC of 52”, better than a 305mm poured concrete wall (STC 51)) Acousitblok now offers a completely new range of acoustical performance panels and doors, which smash the previously achieved sound abatement levels offered in this segment.