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MacBeth Studio Systems M3X

Analog rackmount module (2001)

MacBeth Studio Systems M3X

"A kind of Minimoog clone from rom Scottish synth designer Ken MacBeth in rack format, the prototype was model M3 / S3 but no official news about these, neither about the updated version and then unreleased M3X2" 

 Main Data 

main panel

Company: MacBeth Studio
Model: M3x
Class: rackmount module 6 Units
Keyboard: none
Dates: 2001
Country: Scotland
Weight: 5.5kg.
Dimensions: 486 x 266 x 170mm.
Price: 1000€

Display: numeric
Technology: analog
Polyphony: 1  
Oscillators: VCO waveforms: Sawtooth, triangle, pulse wave and 50 percent), mixed saw/square wave, ramp wave.
Noise: 3 kinds colors: White pink generator + red (on OSC1) 
Filter: 4 poles resonant low-pass.
LFO: 1 digital modulator (9 shapes) based on a modded Kenton pro solo
PSU: internal with VDE
Midi: yes IN +TRHU
CV: yes 1/voct + strig
Memory: none
OS: ?

Rear panel connectors:
- Midi IN + THRU
- audio out (2 impedances)
- Filter CV In
- CV out
- S-trig out
- CV in
- Strig In

Frontal panel conector:
- Audio input for filter process





none yet

- No official VST plugin



- No user manual yet

- No service manual yet

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M3X In details 

VCO

VOICE Monophonic synthesizer with 3 detunable oscillator VCO  each with volume mix. For some strange reasons there are no octaves footages for the VCO, the Frequencies pots cover all the frequency Range from 2Hz to 20KHz.

All VCO have slighty different shapes with different duty pulse and a special red noise for master VCO.

A noise generator (white/pink) and external audio can be added to the mix.

VCO

3 detunable VCO
Sawtooth, triangle, pulse wave     ( 10 / 25 / 50 %)  mixed sawtooth/square wave and ramp.

Hardsync

VCO1 > VCO2 from routing VCO panel 

Routing VCO

Each VCO can be routed to audio mixer or to FM filter.
Special features:
VCO1: modulates osc2 or osc2/3
VCO2: modulates osc1 or 1/3
VCO3: modulates osc2 or 1/2

Glide portamento

Ajustable portamento ,but it  can be set only from Midi Control change number#1 from the midi/kenton panel below.

M3x synth

LFO / EG / FILTER

Filter

FILTER 

- 24 db slope resonant moog transistor-ladder (Frequency Range 16Hz ~ 16 KHz. ) type low-pass filtering with controls for frequency cutoff,envelope amount, attack, decay/release and sustain. Variable Tracking filter mode.

LFo

LFO

For some weird reasons, the M3X incorporates a Kenton Pro solo unit (same display and scripts). The Pro solo offers a digital Modulator with 9 shapes: triangle, sawtooth down, pulsewidth 10-20-30-40%, sample and hold, pseudo-random, sawtooth up and square. Of course it can be synched to coming Midi clock.

Envelope

Envelope

2 EGS with 3 segments; 
- Attack
- Decay /  Release
- Sustain

EG2 amplifier adds a switch for RELEASE segment ON/OFF function.

Midi

M3X Midi and Memory

Midi

The unit can be played by either Midi or CV interface. Lfo, modulation, hold function and portamento are handled in this section (about 20 settings in the Midi / cv section, explained in the below scripts).

Memory

The internal kenton memorizes 1 setup. 
No patch memory

Our Verdict 

"Good sounding, but no knobs for LFO/portamento , digitally generated by internal kenton interface, which is a shame " 

Sound 
quality

Interface

Build
 quality

Rarity

Quality / 
price

Overall

CONS

- can be pricey
- no analog LFO control

PROS

-Good sound
- quite rare

Are you a M3X  user? do you like it? You do not agree with our review?  Let us know in the comment field just below 

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Audio demo and video 

MacBeth Studio Systems M3X MacBeth Studio Systems M3X
80 out of 100 based on 1 user ratings
700 to 1000 from 1 sellers Sellers: