Quad The First 50 Years
A potted history of Quad (Quality Unit Amplifier Domestic) from 1936-1956 and featuring products from the early Acoustical Manufacturing Company, through to Quad 44 and 405 amplifiers.
22, 33, 44, 303, 405, C25, Corner Ribbon, ESL, ESL 63, FM3, II Power, II Pre, QA12/P
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