The Hydrasynth is a synthesizer with semi-weighted keys, polyphonic aftertouch, and a 4-octave ribbon controller. It has three oscillators with 219 waveforms, five low-frequency oscillators, 5 DAHDSR envelopes, 16 filter models, and a 32-slot modulation matrix. It includes diverse effects, offers 1,024 patch memory, and connects via MIDI, USB, and CV/Gate interfaces.