Unilet Sound and Vision is rated 3 out of 5 in the category consumer electronics. Read and write reviews about Unilet Sound and Vision. ARCAM A&R Cambridge Ltd are a British manufacturer of home audio equipment based in Waterbeach, Cambridgeshire. Arcam was established in 1976 by students from the University of Cambridge and in 1979 Arcam released their first product, the A60 integrated amplifier. It soon became a classic product, admired for both restrained, sleek appearance and its high-end sound performance.