The Pearl Syncussion SY-1 was one of the most unconventional drum synthesizers of the late 1970s, designed to respond dynamically to trigger velocity rather than preset patterns, and Michigan Synth Works has meticulously recreated this analog oddity for modern producers who want authentic, unpredictable percussion synthesis.
This is a two-voice analog drum synth built around two voltage-controlled oscillators per voice, each capable of six distinct modes that range from pure single-oscillator sweeps to frequency modulation, dual oscillator mixing, and pure noise generation. The control layout is refreshingly straightforward: tune and decay controls shape the fundamental character of each voice, while a three-way pitch sweep section lets you dial in dramatic upward or downward pitch dives with adjustable speed and range. A dual LFO with selectable triangle or square waveforms adds modulation depth, and the sample-and-hold circuit introduces random pitch variations that keep each trigger sounding slightly different. The unit measures 6.9 by 11.4 inches and sits comfortably on any desktop or in a Eurorack case if you want to integrate it into a larger modular setup.
What sets the Michigan Synth Works version apart is its thoughtful approach to modern connectivity: it retains the original 1/4-inch trigger and audio I/O while adding MIDI implementation that responds to velocity and pitch data, letting you control both voices from any MIDI controller or sequencer. The trigger inputs accept both the original low-pulse signals and modern 5V gate logic, so you can patch it however makes sense for your rig. The gray finish and compact footprint make it feel like a serious tool rather than a novelty, and the dynamic trigger response—where hitting a pad harder or softer actually shapes the envelope and sweep behavior—rewards expressive playing in ways most modern drum synths simply don't offer.
_0_ccb41c-768x571.jpg)