SER-2020

Inspired by the rare 1980s Synton Syrinx—a Dutch oddity prized for its bizarre formant sounds—this semi-modular monosynth revives that exotic vibe with fresh Eurorack compatibility and MPE control.

Dual CEM3340 VCOs deliver saw, triangle, square, and pulse waves with PWM, multi-mode sync, sync detune, plus a sub-oscillator, ring mod, and noise gen feeding a flexible mixer. The standout filter array includes a 24dB/oct lowpass plus two independent CEM3350 resonant peak filters for formant effects, vocal-like tones, or phaser grittiness, routable in series or parallel. Dual ADSR envelopes and LFOs (with reset and shaper modes) join sample & hold, auto-glide, and a touch 'n bend pad assignable to pitch, filters, or more. Patchbay CV/Gate I/O integrates seamlessly with modular rigs, while USB/DIN MIDI handles velocity, MPE, and ARP. Compact at 17.5 x 5.25 x 2 inches and 5.7 lbs, it offers a signal out but skips headphones.

Users love its raw, organic analog character—aggressive nasal lowpass, wild filter tricks for unique timbres—paired with solid boutique build and knob-per-function immediacy, though some note the LFO's quirks demand tweaking.