Expert Sleepers Otterley

Name: Otterley
Brand: Expert Sleepers

Five-output analogue multi-LFO

8 HP Eurorack module

An analogue five-output LFO module with four jointly controlled LFOs and one independent sine LFO.

Features

Illuminated input and output jacks show positive voltage in red and negative voltage in blue.
A +5V offset turns the square waveform into a 0/10V gate/trigger shape.

LFO 1-4 Speed— Sets the common base rate of LFOs 1–4; summed with Speed CV.
Spread— Sets the rate difference between LFOs 1–4; LFO 1 remains at the base speed while outputs 2–4 progressively diverge.
LFO 5 Speed— Sets the rate of the independent fifth sine LFO.
Speed CV Attenuator— Attenuates the incoming Speed CV before it is added to the LFO 1–4 Speed setting.
LFO 5 Output— Independent sine LFO output with its own Speed control.
LFO 3 Output— LFO 3 output, with rate determined by the shared Speed and Spread controls.
LFO 2 Output— LFO 2 output, with rate determined by the shared Speed and Spread controls.
Spread CV Input— Bipolar CV input added to the Spread control; a 5 V range spans the knob's full range.
Speed CV Input— CV input added to the LFO 1–4 Speed control; a 10 V range spans the knob's full range.
LFO 1 Output— LFO 1 output; its rate is set by the shared Speed control and is unchanged by Spread.
Reset Input— Gate input that halts LFOs 1–4 while high and restarts them at a fixed phase when it returns low; triggers can restart the LFOs.
LFO 4 Output— LFO 4 output, with rate determined by the shared Speed and Spread controls.
Waveform— Three-position switch for LFOs 1–4: sine left, no output centre, and square right.
Offset— Three-position switch for LFOs 1–4: -5 V offset left, no offset centre, and +5 V offset right.