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Sugden A21 integrated amplifier is made with as much love as it was 50 years agoIn 1967, James Edward Sugden produced the world’s first Class A, solid state amplifier available for commercial purchase – the A21 (pictured above). This also marked the first unit manufactured by the now-iconic British audio company, Sugden. 50 years on, Sugden still stand out as an exemplary manufacturer of hi-fi amplifiers, and as a brand with a heavy emphasis on integrity.Sugden is unusual in that all of the …