Published on May 17, 2017 Cyril Metodey
"the instrument has mods by Logich:
Midi+arpeggiator sync to midi clock.
Three direct VCO Wavefrom select switches - Saw, Sq, Pw
going through VCF constantly."
via this auction
"Excellent physical condition. All keys work. The rightmost key is a bit tight. Functionally, almost everything works. For some reason, the arpeggiator in several modes plays only three notes instead of four. Obviously, the synthesizer needs to be serviced and tuned. I sell it as it is, because I can not compare with a fully serviceable device. Once again, there are several technical issues that require expert inspection. But the synthesizer works, the modes are switched, the pitch shifter is ideal, the potentiometers work, the external state is perfect.
Keyboard electronic musical instrument (KEMI) "Maestro" is a portable polyphonic four-voiced synthesizer with microprocessor control (KR-580) & programmed timbres "presets". Number of presets- 20. There is possibility to get vibrato frequency with depth & frequency control. This instrument includes "chorus" effect with depth control, filter with cut-off frequency & resonance control. There are also "arpeggio-tremolo" arrangement with speed control and joystick that pitch shifts & vibrato depth controls.
Specifications:
Mains voltage 220V
Power consumption 25W
Range of operating tempererature 15-35 C
Relative oscillator drift over four hours is within +- 0.3
Sound range overlaped by oscillators- 43,6 Hz- 5274
Voices in unison-4
Dynamic range, <55 db Engineer: Vladimir Kuzmin, designer: Olympiada Kuzmina, produced by Urals Vector Company."
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