Mellotron M4000D RackvsMellotron Micro Module

Mellotron M4000D Rack and Mellotron Micro Module: 2 Mellotron specialitys compared side by side. They differ on 8 of 12 compared specifications.

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 type (Digital tape replay).

Show differences only(8)+ Add more speciality

2 items	Mellotron M4000D Rack Current	Mellotron Micro Module Current
General
Manufacturer	Mellotron	Mellotron
Status	Current	Current
Released	2014	2025
Instrument
Type	Digital tape replay	Digital tape replay
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
Polyphony	10 notes	10 notes
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
Keyboard
Aftertouch	None	None
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
Size & weight
Colours	White	White
Dimensions (W × D × H)	480 × 140 × 90 mm	184 × 135 × 65 mm
Weight	1.7 kg	0.71 kg

Summary