Korg Lambda ES50

The Lambda ES50 is a vintage poly-ensemble type synthesizer with slightly editable Preset orchestral sounds. It is divided into two sections: The Percussion set includes Preset pianos, clavis and harmonics; The Ensemble section has Presets for brass, strings, organ and choruses. Filter and envelope controls affect the different instruments individually. The Lambda has 96 discrete envelopes and VCAs - two for each key - a very unusual design. There are also vibrato and chorus effects.
The Percussion group and Ensemble group each have their own separate outputs which is nice. A joystick is proveded left of the keyboard for simultaneous control of pitch bends and chorus phase speed.
The String sounds are the nicest sounds this synth can create. With three oscillators you can vary and detune them enough to get a nice layered analog string. Piano and Brass sounds are pretty cheesy. The Lambda is cased in a great big wooden case that gives it that authentically vintage status. It's nice to have around, but a good sample of it is all you'll really need these days.
20 VISITOR COMMENTS
- Specifications
- Polyphony - 48 notes
- Oscillators - 3 VCOs
- Effects - Chorus
- Filter - 1 VCF
- VCA - 96 VCA envelope generators (two per key)
- Keyboard - 48 keys
- Memory - 9 patches
- Control - Gate Trigger Out
- Date Produced - 1979
- Est. Value - $150 - $250
- Websites of Interest
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Lambda ES-50 Web Site with Pics & Patches
- Resources & Credits
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Images from Korg Product Brochure.
Errors or Corrections? Send them here.

3 vcos are divided down to achieve polyphony, but it doesn't affect sound quality in way it does in cheapo string synths.
For me, Lambda is among the best string synths. Simple, but quality of some sounds is just astounding!
PS: Anybyody know where to get a joystick?
I got mine from a guy in the Maritimes who'd found it in his barn. It powered on once for him, screeched and then died. He sold it to me for the cost of shipping.
When it arrived I took it to my tech and we opened it up to find a mouse habitat. It was full of pink insulation and mouse turds. We laughed so hard we almost fell over. After a good cleaning and a handful of inexpensive parts replaced the thing sounds like new! And what sounds . . .
1. It doesn't do nearly everything, but what it does excel at it does better than any of my other 15 vintage synths. There's no replacement for it.
2. No other synth so immediately brings me pure joy as soon as I play it. It cures a bad mood in about 20 seconds.