Mellotron M4000D Rack

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$1,539.00 to $1,840.00

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Page last updated Jul 01, 2026

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$1,840.00

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5.0 (2)

$1,840.00 4 available New

$1,429.86 2 available Used

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4.9 (10)

$1,550.00 $1,539.00 $11.00 · All time low

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5.0 (2)

$1,840.00

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Description

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Step into the world of classic soundscapes with the Mellotron M4000D Rack, a digital marvel that captures the essence of the iconic Mellotron and Chamberlain instruments of the 60s and 70s. Perfect for both studio professionals and vintage sound enthusiasts, this sample-playback engine delivers the lush, tape-looped tones that defined an era, now in pristine 24-bit audio. With 100 timeless sounds at your fingertips, it's like having a piece of music history right in your rack.

The M4000D Rack is designed with modern convenience in mind. Its dual high-resolution OLED displays provide clear, at-a-glance information, while the intuitive controls for volume, tone, pitch, and mix allow for easy manipulation of your sound. Whether you're dialing in a haunting flute or a rich string ensemble, the slot for Compact Flash cards ensures that you have the flexibility to expand and customize your library as you see fit.

Connectivity is a breeze with MIDI In/Out/Thru, balanced XLR and 6.3 mm jack outputs, and pedal connections for sustain and expression. Its compact 19" 2U design makes it a seamless addition to any setup, ensuring that the only thing standing between you and legendary sound is your creativity.

Key Features:

Sample-playback engine with 24-bit audio data
100 Mellotron and Chamberlain sounds
2 high-resolution, graphics-capable OLED displays
Controls for volume, tone, pitch, and mix
Slot for Compact Flash card for sound expansion
MIDI In/Out/Thru
3x Line-out balanced XLR and 6.3 mm jack
Pedal connectors: Sustain, 2x expression, and volume pedal connection
Headphone output
Poly-AT input
19" 2U rack design

Product specs

Available since	January 2015
Design	19" / 2U
Sound Generation	Sample Based
MIDI interface	1x In, 1x Out, 1x Thru
Storage Medium	CF Card
USB-port	No
Effects	No
Arpeggiator	No
Number of Analog Outputs	3
Digital Output	No
Display	Yes
Optional Expansions	None
Special Features	OLed-Displays

FAQs

What type of sounds does the Mellotron M4000D Rack offer?: The Mellotron M4000D Rack provides 100 Mellotron and Chamberlin sounds, captured directly from original tape sources in 24-bit, uncompressed audio, delivering authentic vintage tones.
Does the Mellotron M4000D Rack have MIDI connectivity?: Yes, the Mellotron M4000D Rack features MIDI connectivity with 1x In, 1x Out, and 1x Thru ports, allowing integration with other MIDI-compatible devices.
Can the Mellotron M4000D Rack be expanded with additional sounds?: The Mellotron M4000D Rack does not support optional expansions, but it comes with a rich library of classic sounds pre-installed.
Is the Mellotron M4000D Rack suitable for live performance?: Yes, the Mellotron M4000D Rack's compact 19" / 2U design and high-quality sound library make it suitable for live performances, especially for musicians seeking vintage sound textures.
Does the Mellotron M4000D Rack include built-in effects?: No, the Mellotron M4000D Rack does not include built-in effects, focusing instead on delivering pure, high-fidelity Mellotron and Chamberlin sounds.

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Reviews

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PROS

Authentic Mellotron sound, directly sampled from original tapes
Lightweight and maintenance-free compared to original Mellotron
Over 100 sounds from Mellotron and Chamberlin libraries
Digital stability allows for dual sound layering
Simple controls and MIDI compatibility enhance usability
XLR balanced outputs for professional audio quality
Sound customization options emulate vintage Mellotron characteristics
Can be easily integrated into a keyboard setup

CONS

Expensive initial cost and costly expansion cards
Sound duration limited to 7-9 seconds, like original Mellotrons
Distinct sound not suited for all musicians or genres

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Mellotron M4000D Rack.

Comparisons

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The Roland JV1010, with added effects like LPF and vibrato, closely replicates classic Mellotron sounds, offering a budget-friendly alternative.
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The Manikin Memotron, being more affordable, is a viable alternative to the M4000D Rack, especially with the newer M4000D micro altering price dynamics.
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The M4000D is noted for its physical beauty and superior sound experience, but its high cost is a consideration for non-gigging studio use.
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Features and functionality

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The Memotron Rack is 6-part multitimbral but requires a custom tape frame pre-arrangement, causing slower sample loading times from a CF card.
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The Memotron Rack boots up blank, unlike its keyboard counterpart, which can load a default sound set on startup, potentially improved in later models.
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The digital Mellotron allows for the layering of two sample banks, with control over the mix of each, and includes emulated motor behaviors like rewind speed.
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Digital Mellotrons have two extra keys compared to original models, featuring unique samples from the original session recordings, unlike many VSTs that pitch shift to achieve range.
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The M4000D has built-in sample sets, while some Memotron models require additional purchases for sound sets.
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User experience

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Some owners find the Memotron's simulated tape glitches add character, enhancing the authenticity of the sound.
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The Memotron M2D's interface is reportedly less intuitive, contributing to some users preferring the M4000D for ease of use.
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Value and pricing

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Expansion cards for additional samples cost $500, and prices have remained unchanged since release, causing frustration among owners.
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Use cases and applications

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Some owners use Mellotron sounds in nearly every song, citing its versatility with over 100 different sample banks that mimic a wide range of instruments, from guitar to saxophone.
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Mtron Pro is favored for studio use due to its affordability and similar sound quality to the M4000D, making it a popular choice for non-live settings.
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