The Teisco 110F was released by Kawai’s sub-brand “Teisco” in 1980, quite late to the party for a duophonic synthesizer. Featuring two VCO’s with basic waveforms, plus PWM, plus noise generators, plus ring modulation, vibrato, etc. Its design closely resembles the looks of Roland synthesizers of the time, especially in the slider-caps. It holds a resonant low-pass filter, a high-pass filter plus an 8-band resonating filter bank, which is pretty much just an 8-band EQ, reaching from 250Hz to 2.8Khz. The Teisco 110F had an extensive number of modulation possibilities. At the time of its release, it was a pretty underrated synth overall.