MX100A and MX100B are early Mark I built-in Disklavier systems for 2DD floppy E-SEQ recording and playback, with practical upgrade paths through PianoStream, DCD-1, and external tone generators.
Things to Know
These have unusually tall floppy disk drives. If purchasing a USB emulator, purchase from Nalbantov, as a Gotek or generic emulator will not fit.
I’ve found these require a floppy disk to be inserted in order to use PianoStream or other devices plugged into the MIDI ports. This can be bypassed by powering on the system while holding down the MIDI and REC buttons. See Why isn’t PianoStream Working? for more.
Not to be confused with the similarly named MX100II.
At a Glance
- Uses
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2DD floppy
- Recording
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E-SEQ
- Plays
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E-SEQ
- PianoSoft Types
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Solo
- Upgrade Options
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PianoStream DigitalDCD-1MU50 / TG100



