Clas Ohlson company was founded in 1918 by the technically minded Clas Ohlson (1895–1979), as a mail order business based in the Swedish village of Insjön, Dalarna. Initially, only manuals and technical literature were sold, thus allowing people who lived in rural communities to obtain literature that would otherwise be unavailable. He opened his first shop in Insjön in 1926, but it was not until 1989, when the company opened a store in a shopping centre in central Stockholm, that it expanded into the retail business. The first store outside Sweden was opened 1991 in Oslo in Norway and in 1999, the
DIY audio and chassis' are the most time consuming aspects of audio DIY. Drilling, metalworking and physical measurements are critical to constructing almost any DIY audio project, especially speakers. Measuring equipment such as a Vernier caliper is often essential. Woodworking skills are required to construct wooden enclosures (e.g. for speakers), with some enthusiasts going beyond traditional woodworking to CNC turning, and luxurious veneers and lacquers. Room acoustics solutions are also popular among DIYers, as they can be made with inexpensive and readily available insulating materials, and can be dimensioned to fit each particular room in a precise and aesthetically pleasing way. DIY