{
 "_sources": [
  {
   "type": "vendor-doc",
   "url": "http://www.musictechnologiesgroup.com/files/DX7mega128_UserGuide.pdf",
   "notes": "DX7mega128 User Guide v1.30 (Music Technologies Group)",
   "firmware": "mtg-mega128-1.30",
   "imported_at": "2026-10-26"
  }
 ],
 "_limitations": "DX7mega128 shares the DX7 MIDI: 128 patches by Program Change 1-128; MIDI out channel, Omni receive, Local Control and stack/detune (1x16, 2x8, 4x4) set on the unit; v1.30 adds a velocity offset switch. Version shown with FUNCTION + 16 + 32. Sold as hardware by its maker; nothing is hosted here. Untested on hardware.",
 "midi_of": "yamaha/dx7.knobkraft.fw-unknown",
 "device": {
  "name": "DX7",
  "vendor": "Yamaha",
  "revision": "DX7mega128 User Guide v1.30 (Music Technologies Group)",
  "osc_prefix": "/dx7"
 },
  "programs": {
    "profile": "yamaha/dx7-expansions"
  }
}