Makers of PA systems and loudspeakers Tannoy Ltd. are headquartered in Coatbridge. Tannoy Ltd is a British manufacturer of loudspeakers and public-address (PA) systems. Tannoy is the Scotland-based manufacturer of loudspeakers and PA (public address) systems. TGI consisted of Tannoy, GLL Goodman, Lab. Simon Pegg said Jackson's voice would "be coming over the Tannoy like God". Following the lead of companies like Avalon, Tannoy and Millbank Electronics etc. Its individual brands include Lab.gruppen, Lake, Tannoy, TC-Applied Technologies, TC Electronic and TC-Helicon. In the 1970s the Tannoy company relocated their headquarters to Coatbridge. The whole station was connected by a Tannoy public address system. The manual Tannoy system was replaced by an automated voice on 13 July 2011. Grant once said that the distorted vocal emulates that of a tannoy in a supermarket. This design remained the basis for all Tannoy dual concentrics for about thirty years.