The Korg Z1 is a synthesizer prodcued in 1998 by manufacturer Korg. 

It's a digital synth but it sounds analog. It has analog modeling and also virtual acoustics modeling.

The Korg Z1 had 12 voices polyphony, it has 4 LFO's, 2 Resonant Filters, 2 Effect units. 

With the XY-pad the sound parameters can be tweaked realtime.