Mellotron M4000D RackvsMellotron Micro Module
Summary
Mellotron M4000D Rack and Mellotron Micro Module: 2 Mellotron stage keyboards compared side by side. They differ on 8 of 14 compared specifications.
Key differences
- Released: 2014 on the M4000D Rack and 2025 on the Micro Module.
- Sound engine: Same engine as the M4000D: 100 Mellotron and Chamberlin sounds built in, plus an expansion slot for 100 more on the M4000D Rack and Micro engine on microSD: 100 Mellotron and Chamberlin sounds; not expandable on the Micro Module.
- Dimensions (W × D × H): 480 × 140 × 90 mm on the M4000D Rack and 184 × 135 × 65 mm on the Micro Module.
- Weight: 1.7 kg on the M4000D Rack and 0.71 kg on the Micro Module.
Both are the same on sections (Sample playback) and drawbars (None).
| 2 items |  Mellotron M4000D RackCurrent |  Mellotron Micro ModuleCurrent |
|---|---|---|
| General | ||
| Manufacturer | Mellotron | Mellotron |
| Status | Current | Current |
| Released | 2014 | 2025 |
| Keyboard | ||
| Aftertouch | None | None |
| Sounds | ||
| Sections | Sample playback | Sample playback |
| Drawbars | None | None |
| Sound engine | Same engine as the M4000D: 100 Mellotron and Chamberlin sounds built in, plus an expansion slot for 100 more | Micro engine on microSD: 100 Mellotron and Chamberlin sounds; not expandable |
| Organ models | None | None |
| Polyphony | 10 notes | 10 notes |
| Connections | ||
| Outputs | XLR balanced, 1/4-inch unbalanced, Headphones | 1/4-inch unbalanced, Headphones |
| MIDI ports | DIN in, DIN out, DIN thru | 3.5 mm TRS in (Type B), 3.5 mm TRS thru (Type B) |
| Pedal inputs | Volume, Sustain, Expression, Expression | Sustain |
| Features | ||
| Features | 100 Mellotron and Chamberlin sounds from first-generation master tapes, 24-bit uncompressed playback, A/B sound mix, Half-speed playback, Pitch control, Two colour displays, 19-inch 2U rack, Expansion card slot | 100 Mellotron and Chamberlin sounds, 24-bit uncompressed playback, Responds to mono and polyphonic aftertouch over MIDI, High/low switch drops playback one or two octaves, Two displays, Firmware updates via iOS app |
| Size & weight | ||
| Colours | White | White |
| Dimensions (W × D × H) | 480 × 140 × 90 mm | 184 × 135 × 65 mm |
| Weight | 1.7 kg | 0.71 kg |