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The SM-30, Sansui Super-Mighty Amplifier Model SM-30, was a very special model for Sansui at that time. The SM-30 won Japan Total Design Award at the Japan Composite Design Show, and the SM-30 was also exhibited on the 12th Triennale in Milan, Italy. According to Mr. Ishiguro with Hashimoto electric, Sansui tuner-amplifiers had been designed by the founder Mr. Kikuchi until 1958; however, they were not selling well due to the not-so-attractive external appearances. In 1959, a newly employed Mr. Watanabe was given an opportunity to design a new amplifier, the SM-20, and his SM-20 became the instant success due to its contemporary design. The SM-30 was a very next model that came out right after the success of the SM-20. Internally, the SM-30 equipped two AM tuners (preparing for AM stereo broadcasting) as well as a FM tuner although it needed an external FM MPX adopter for FM stereo reproduction. The SM-30 was the last model for Sansui that used all tubes for active components.
