via this auction
"Ultra rare Korean-made clone of the Roland SVC-350 vocoder. I saw one for sale 25 years ago and thought I imagined it. Compared it to a buddy's SVC-350 I could probably not tell the sound apart in a blind test. Roland maybe 5% more mid-range, could just be standard variance in analog units, this one a bit warmer. Case in fair shape for it's age, probably has been serviced as mic jack looks different. Sliders and pots have zero crackling/noise when moved, frequency faders glide smoothly, each works. I have tested and used every feature fully
-Hold jack (creates mini-loop when pedal depressed)
-vocoder/direct (switches from your voice to vocoded voice, or to synth, depending on where the balance knob is positioned
-ensemble mode (pans frequency bands left/right alternatingly for a rich shimmery stereo sound.
-harmonics knob (increases harmonic content in rich sounds like saw/square waves, I linked to a youtube video SVC-350 FM Synthesis that demos this
-all inputs/outputs/gain selectors fully functional."
Only one other has been previously featured on the site here.
