d1 Synthesis - The Modulo

Please contact us to reserve a Modulo. The first production unit has been completed and more will soon be on the way.

Test equipment for sonic exploration.

The Modulo is a fully analog four-voice synthesizer optimized for discovery.

Its architecture of six audio oscillators, a three-stage wavefolder, and a state-variable filter moves effortlessly between precision and chaos. Two of its voices form complementary modulation pairs (hyper-modulation) while all four share a frequency-modulation network that connects them in subtle or volatile ways.

The Modulo’s illuminated buttonboard spans seven octaves and provides a tactile performance surface free of menus or presets. It also accepts 1 V/octave, gate, and velocity inputs for external control. A built-in three-band color-organ represents the signal optically, producing triggers that can drive lamps or other analog systems.

The Modulo invites the player to listen closely, to shape and respond to shifting interactions, and to find coherence within complexity. Rather than recreating familiar territory, it offers an analog environment where sound emerges through the interplay of four interacting voices — discovered through engagement rather than recalled from memory.