An EK22 with Yamaha's 4op FM chips (YM2203) replacing the original subtractive architecture.
Architecture Class: FM.
Ebay Description:
The Elka EK44 is a 61 key (velocity and pressure sensitive), 9+9 voice, multitimbral FM synthesizer, featuring four oscillators (8 algorithms), dedicated oscillator amplitude envelopes, pitch envelope, LFO, chorus, portamento, MIDI, and 96 program memories (64 preset, 32 user editable).
Basic split/layer retains 9 voice polyphony for both sections. "Multisplit" dedicates 9 voice polyphony for one section, but shares 9 voice polyphony among other 7 sections
9+9
no
4 operator, 8 algorithm FM (YM2203), similar architecture to Yamaha 4op-FM family