via this Reverb listing
You can find demos in previous posts here.
"The EK-22 is an analog polyphonic programmable synthesizer from Elka. Its cousin, the EK-44 is a digital and expanded version of the EK-22. Although the EK-22 is analog, the oscillators are digitally controlled (DCOs) for better stability and programmability. The keyboard can be split and there are 16 performance patches to store any split, tuning and patch settings. There are 64 preset and 32 user sound patches of purely Italian style analog synth sounds.
Oscillators are very programmable with syncing, individual tuning, level and modulations. There are two six-stage envelope generators for total control of dynamics. The EK-22 is a capable synth similar to the Prophet 600 in programmability but more like the Matrix 6 in its look and push button style programming interface. The EM-22 is a keyboard-less desktop module version of the EK-22.
It has a very similar sound to the Oberheim Matrix 6 (and Matrix 1000) and the Prophet 600 Sequential, as it features the famous Cem3386 filter.
The synthesizer is in excellent condition; everything works properly buttons, sliders,Chorus (Juno 60 style) volume, audio output, and headphones, including the pedal inputs on the rear panel.
Aftertouch is also active, although it's a bit harsh; you have to press the keys quite hard to hear its effect, most likely because it hasn't been used in the last 30 years!
A small strip of foam has been inserted inside the front control panel to dampen the plastic noise, but this does not affect its functional or aesthetic behavior."
