| http://www.w3.org/ns/prov#value | - The boombox was introduced to the American market during the mid-1970s, with the bulk of production being carried out by Panasonic, Sony, Marantz, and General Electric.[3] It was immediately noticed by the urban adolescent community and soon had a large market, especially in metropolitan centers such as New York, Los Angeles, and Washington D.C.
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