Mellotron M4000D MicrovsMellotron M4000D Rack
Summary
Mellotron M4000D Micro and Mellotron M4000D Rack: 2 Mellotron specialitys compared side by side. They differ on 8 of 12 compared specifications.
| 2 items | Mellotron M4000D MicroCurrentView details → | Mellotron M4000D RackCurrentView details → |
|---|---|---|
| General | ||
| Manufacturer | Mellotron | Mellotron |
| Status | Current | Current |
| Released | 2017 | 2014 |
| Instrument | ||
| Type | Digital tape replay | Digital tape replay |
| Sound engine | SD-card-based playback engine with 100 Mellotron and Chamberlin sounds (Sound Card 01 library); not expandable with extra sound cards | Same engine as the M4000D: 100 Mellotron and Chamberlin sounds built in, plus an expansion slot for 100 more |
| Polyphony | 10 notes | 10 notes |
| Features | 100 Mellotron and Chamberlin sounds from first-generation master tapes, 24-bit uncompressed playback, Half- and quarter-speed switch, A/B sound mix, Two colour displays, External power supply | 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 |
| Keyboard | ||
| Keys | 25 | — |
| Key action | Semi-weighted | — |
| Aftertouch | Channel (mono) | None |
| Keybed | Fatar semi-weighted, two octaves, velocity-sensitive | — |
| Connections | ||
| Outputs | 1/4-inch unbalanced, Headphones | XLR balanced, 1/4-inch unbalanced, Headphones |
| MIDI ports | DIN in, DIN out, DIN thru | DIN in, DIN out, DIN thru |
| Pedal inputs | Sustain | Volume, Sustain, Expression, Expression |
| Size & weight | ||
| Colours | White | White |
| Dimensions (W × D × H) | 488 × 184 × 58 mm | 480 × 140 × 90 mm |
| Weight | 2.5 kg | 1.7 kg |
Key differences
- Released: M4000D Micro – 2017 M4000D Rack – 2014
- Aftertouch: M4000D Micro – Channel (mono) M4000D Rack – None
- Sound engine: M4000D Micro – SD-card-based playback engine with 100 Mellotron and Chamberlin sounds (Sound Card 01 library); not expandable with extra sound cards M4000D Rack – Same engine as the M4000D: 100 Mellotron and Chamberlin sounds built in, plus an expansion slot for 100 more
- Dimensions (W × D × H): M4000D Micro – 488 × 184 × 58 mm M4000D Rack – 480 × 140 × 90 mm
- Weight: M4000D Micro – 2.5 kg M4000D Rack – 1.7 kg
Both are the same on type (Digital tape replay).

