Digital do MaiN

Digital do MaiN (Japanese: デジタルドメイン株式会社, Dezitaru do MēiN Kabushiki Gaisha) is a Japanese audio engineering company headquartered in Chiyoda, Tokyo, Japan.^[1] The company name emphasises symbiosis of analog and digital technologies (implemented, for example, in a volume control subsystem); the logo symbolizes an input pin jack (left square), output pin jack (right square) and an innovative signal processing unit in between.

Digital do MaiN

Native name	デジタルドメイン株式会社
Company type	Private
Industry	Audio electronics
Founder	Kazuhiko Nishi
Headquarters	Chiyoda, Tokyo, Japan
Area served	Worldwide
Key people	Yasunori Mochida (Chairman) Kazuhiko Nishi (President) Tamotsu Kajiwara (CEO)
Products	Power and Compact Amplifiers Super Audio CD D/A Converters Loudspeakers
Website	www.digital-do-main.co.jp (in Japanese)

Technology

Digital do MaiN's power amplifiers use V-FET technology transistors. Initially developed by Nippon Gakki Seizo K.K. in the 1970s (US Patent 4,216,038^[2]), the technology was improved, and the 2SK77B transistor was released. As V-FET devices are no longer manufactured, Digital do MaiN builds them itself.^[3] Original design and usage of the 2SK77B V-FET transistor give amplifiers characteristics similar to vacuum tube devices^[4] and Triode class A amplifiers which feature very high quality of output sound and cancellation of most of the even distortion harmonics, and allow noise distortion to be less than 0.005%^[5] and no loss of original harmonics.^[6] Digital do MaiN also uses technologies and complementary products from its partners: MSB Technology's (USA) DACs,^[7] Cabasse (France) loudspeakers, Denon (Japan) waveform reproduction technology.^[8]

Awards

• Japanese Audio Excellence Award 2009,^[9] Separate Digital Players category (D-1a D/A converter) and Main Amplifiers category (B-1a power amplifier)