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The Yamaha DX1 is the top-level member of Yamaha's prolific DX series of FM synthesizers. It featured two sets of the same synthesizer chipset used in the DX7, allowing either double the polyphony, split of two voices or dual (layered) instrument voices. In addition, it contained twice the amount of voice memory as the DX7, resp. it has an independent voice bank for each of two synth channels (engines). Each of 64 performance combinations can be assigned a single voice number, or a combination of two voice numbers - one from channel A and one from channel B. It included a handmade Brazilian rosewood case, a 73-key weighted wooden keyboard with polyphonic aftertouch, comprehensive backlit LCD displays for instrument programming, and solid push-buttons as opposed to the membrane buttons on the DX7. There were only 140 of them ever made. The Yamaha DX5 was a derivative of the DX1, introduced in 1985 with a list price of US$3,495. It has the same synth engine, but lacked the DX1's fully weighted keys, polyphonic aftertouch, aesthetics (rosewood case and wooden keyboard) and user interface features (parameter displays). It included 76 keys with channel aftertouch and slightly improved MIDI features. Programming instruments on the DX1 is a little easier than on a DX5 because of extensive parameter displays, but both have an advantage against a DX7, because they have dedicated buttons for some programming tasks and bigger display, so programming is not so tedious as on a DX7. ==Notable users== * Aphex Twin * The Beach Boys on the album The Beach Boys (album) * Brian Eno * Grzegorz Ciechowski * Depeche Mode * Dire Straits' Guy Fletcher used a DX1 for the Brothers In Arms album (especially "Money For Nothing") and tour. * Elton John * Europe DX5 on The Final Countdown (album) and DX1 in the videoclip for the 1988 version of Open Your Heart () * Roby Facchinetti * Herbie Hancock on The Village Life LP (with Foday Musa Suso) * Jan Hammer * Jean Michel Jarre used a DX1 on live concerts * Kitaro * Kraftwerk * Michael McDonald * Minoru Mukaiya of Casiopea DX1 in 1984 * New Order's DX5, notably on True Faith and 1963〔http://www.soundonsound.com/sos/mar05/articles/classictracks.htm〕 * Pet Shop Boys as seen playing a DX1 in their videoclip () * Steve Porcaro of Toto * John Dulik of Relâche (musical group) * Michael W. Smith * Tangerine Dream 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yamaha DX1」の詳細全文を読む スポンサード リンク
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