Company and People

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– Company –

Silicon Arts Design & Concert Fidelity is a company started in 1987 by Masataka Tsuda, who continues to design and build all of the products at his workshop in Nagano, Japan.

Nagano is often equated to the region in Switzerland famous for high precision products, and is home to companies such as SEIKO, EPSON, CITIZEN, OLYMPUS and NMB as well as for hosting the Winter Olympic Games in 1998.

976-52 Oiwake, Karuizawa-machi, Nagano-ken, 389-0115 JAPAN
Phone: +81-267-46-8141
E-Mail: biz(at)

U.S.A. Office:
2477 Paseo Circulo, Tustin, CA 92782
Contact: Mr. Hajime Sato
Phone: 714-334-0759
E-Mail: sato(at)

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– Masataka Tsuda –  Founder, President and CTO

  • Started to build vacuum tube amplifiers at age of 10
  • Acquired Ham Radio license at age of 14
  • Worked at his father’s precision machining and tooling company for 10 years
  • Worked at a semiconductor trading firm for 6 years

Contact: tsuda(at)


– Hajime Sato –  Vice President & Marketing

  • Avid jazz fan and audiophile
  • Proprietor of online music shop Eastwind Import, importing hard-to-find jazz CDs and LPs from Japan and Europe
  • Volunteers as Secretary of the Los Angeles & Orange County Audio Society
  • Worked for a Japanese government agency for 8 years, then as a freelance translator for 12 years

Contact: sato(at)