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Korg Lambda

ES-50 Lambda Polyphonic Ensemble (1979)

korg lambda

"Fully polyphonic Classic vintage synthesizer,  a kind of home edition (and very slimmed-down) of cult PS Korg Series " 

 Main Data 

Korg Lambda



Company: Korg
Model: Lambda ES-50
Class: Synthesizer 
Keyboard: 49 keys, Non-weighted
Dates: 1979
Country: Japan
Weight: 15kg 
Dimensions: 824 x 127 x 497mm
Price: 800€

Display: none
Technology: analog
Polyphony: full (49)
Multitimbric: 1 part
Oscillator: 3 VCO
Effect: ensemble, which is chorus + tremolo
Memory: 9 preset sounds
Midi: none
CV-gate: trigger out
PSU: internal
IC:  S50241

49 keys with no velocity. Left a +/2 semitones pitchbender which acts also as chorus rate

Rear panel connectors:
-Sustain pedalswitch  input (damper)
-Expression CV input 0 / +5V can be set to section 1 /2 /1+2
-switch trigger keyboard out
-Headphones out
-Stereo outputs
- mix out




none

- No official VST plugin


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 The Lambda In details 

Lambda

VOICE Top Octave Generators generates 3 detunable oscillators (TUNE A / B)   + The divide-down IC Mostek S50241 (or M082B1)  is  a 13 Note Top Octave Synthesizer DC (DIP16).  

It may sound like a classic  paraphonic structure, but each note have 2 VCA unlike classic string machines (96!!)

Polyphony

Fully polyphonic based on divide-down technology

Oscillator

3 detunable oscillator (gernal main + A / B) 

VCA

Each note features 2 VCA  with no "retrigger" effect from classic divide-down keyboards

Effect

A Stereo BBD sounds can be added to either percussive and/or ensemble sound

lambda

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Presets controls

Sounds are mainly organized into 2 categories: ensemble and percussive.

Ensemble

A- Percussive group

This group uses only 2 VCO with a sustain option with FAST/SLOW knobs plus a Tremolo effect on VCA. 
Presets are:  Electric Piano, Clavi, Piano and Harmonics

Mobirise

B- Ensemble group

This group uses up to 3 VCO. Organ have no control, Brass have separate cutoff option. The 3 others (chorus+ strings 1/2) have special "Attack Release variable" with 2 control knobs for Attack and Release segments.  Presets are: Brass, Organ, Chorus, String and String2.

Our Verdict 

"Very lush sounds! choir and strings are totally vintage sounds! highly recommanded! " 

Sound 
quality

Interface

Build
 quality

Rarity

Quality / 
price

Overall

CONS

- now pricey
- may need overhaul

PROS

-sounds
- vintage classic

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

DISQUS COMMENTS WILL BE SHOWN ONLY WHEN YOUR SITE IS ONLINE

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Korg LAMBD Korg LAMBDA
88 out of 100 based on 1 user ratings
500 to 850 from 1 sellers Sellers: