Berlin

EUKLID

Dual Euclidean rhythm generator

A dual Euclidean rhythm generator in 4 HP. Feed it a clock, choose how many hits fall on how many steps, and EUKLID spreads them as evenly as possible. Two channels of different lengths drift apart and meet again, so two simple settings grow into long, evolving polyrhythms.

Buy on Etsy →Buy on eBay →Buy on Reverb →

Features

Two independent channels, A and B: STEPS 1–32, HITS 0–STEPS, ROTATE and pulse length (10 ms trigger or 50 % gate)
SPN auto-rotation: the pattern shifts by itself every 1–8 cycles
CLOCK and RESET inputs, OUT A and OUT B gate outputs
Animated 0.91" OLED screen — both patterns as rings or columns, the current step and the edited value in large digits
Three buttons (−, +, MENU); settings are saved automatically
Factory setting A = 5 of 16 (bossa nova), B = 7 of 13 — together they line up only every 208 clock pulses
Kicks, hi-hats and envelope gates, polyrhythmic sequencer clocking, slowly evolving Berlin School patterns

Specifications

Inputs	CLOCK, RESET (DC-coupled, threshold approx. 1.5 V, approx. 110 kΩ, safe for ±12 V)
Outputs	OUT A, OUT B (0 V / approx. 4.8 V, short-proof to ±12 V)
Controls	−, +, MENU buttons
Display	0.91" OLED, 128 × 32
Clock range	up to 100 Hz
Pulse length	10 ms or 50 % of the clock period
Depth	approx. 25 mm
Power	+12 V only, approx. 40 mA (−12 V and +5 V unused), 10-pin header, reverse-polarity protection
Format	Eurorack, 4 HP
Line	Berlin