Expert SleepersOtterley Multi-LFO

Expert Sleepers Otterley

Otterley is an all-analog multi-LFO Eurorack module from Expert Sleepers that offers deep and flexible modulation in a compact size. At its core, Otterley delivers four LFOs with different speeds derived from a base frequency control and spread function. Turning the spread knob clockwise expands the difference in speed between channels, while turning the speed knob increases the base frequency of the LFO array. This intuitive two knob function is a powerful way to create modulation curves which are musically related to one another, or mix signals to create a polyrhythmic complex LFO.

The first four channels are switchable between sine and square outputs, making them great for creating complex gate patterns. This is especially useful when utilizing the reset function to rhythmically restart each LFO for chaotic, semi-clocked patterns. These outputs may also be switched between bipolar (+/-5V), negative unipolar (-10 to 0V), and positive unipolar (0 to 10V). Finally, a fifth sine LFO with independent speed control is available for free-wheeling modulation that is unaffected by the main speed and spread functions.

If you need modulation sources, Otterley delivers a flexible palette of related waves ready to add movement and texture to any parameter of your patch. With a solid baseline functionality and a handful of quirky tricks to explore thanks to its clever design, Otterley from Expert Sleepers is sure to get your patch moving and grooving.

Otterley Features

• Multi-LFO Eurorack module
• Four channels of sine or square LFOs with related speeds determined by base speed and spread function
• Gate input for reset
• Polarity switchable between bipolar (+/-5V), positive (0 - 10V), and negative (-10 - 0V)
• Additional fifth sine LFO with independent speed control
• LFO speed range: 1-4: 150 seconds/cycle to 75Hz, 5: 50 seconds/cycle to 50Hz
• 100% analog design