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8hp10% offDEMO
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4hpSave $20DEMO
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![Expert Sleepers ES-5 Mk4 Expander for ES-3 [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_ES-5_Mk4_Expander_for_ES-3_U23-40803_01.webp "Expert Sleepers ES-5 Mk4 Expander for ES-3 [USED]")
![Expert Sleepers Little Mikey Preamp [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Little_Mikey_U23-40618_01.webp "Expert Sleepers Little Mikey Preamp [USED]")
![Expert Sleepers FHX-8GT Gate Expander for FH-2 [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_FHX-8GT_U23-40518_01.webp "Expert Sleepers FHX-8GT Gate Expander for FH-2 [USED]")
![Expert Sleepers FH-2 Factotum USB MIDI Host + MIDI-CV [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_FH-2_U23-40517_01.webp "Expert Sleepers FH-2 Factotum USB MIDI Host + MIDI-CV [USED]")
![Expert Sleepers ES-9 Eurorack Audio + CV Interface [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_ES-9_U23-39920_01.webp "Expert Sleepers ES-9 Eurorack Audio + CV Interface [USED]")
![Expert Sleepers Tiny MIDI Breakout Expander [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Tiny_MIDI_Breakout_U23-40044_01.webp "Expert Sleepers Tiny MIDI Breakout Expander [USED]")
![Expert Sleepers Lorelei Analog Oscillator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Lorelei_Oscillator_U23-38000_01_3.webp "Expert Sleepers Lorelei Analog Oscillator [USED]")
![Expert Sleepers Lorelei Analog Oscillator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Lorelei_Oscillator_U23-37977_01_1.webp "Expert Sleepers Lorelei Analog Oscillator [USED]")
![Expert Sleepers Lorelei Analog Oscillator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Lorelei_Oscillator_U23-37985_01.webp "Expert Sleepers Lorelei Analog Oscillator [USED]")
![Expert Sleepers Lorelei Analog Oscillator [USED]](https://www.perfectcircuit.com/media/catalog/product/cache/ded690e21f7abf5f4eba2c2c5d3bf323/E/x/ExpertSleepers_Lorelei_Oscillator_U23-39361_01.webp "Expert Sleepers Lorelei Analog Oscillator [USED]")
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Expert Sleepers is a one-man show helmed by Andrew Ostler, a UK-based musician and software designer. Their entire line is oriented around interfacing computers and controllers with CV-equipped gear. Consequently, Ostler’s products have made the world of Eurorack synthesis even more modular than anyone would have thought possible. For example, the ES-8 is a DC-coupled audio/CV interface, while the FH-2 gives users the ability to directly connect a USB MIDI controller to their modular synthesizer (while simultaneously offering LFOs on each output, step sequencers, arpeggiators, polyphonic MIDI/CV conversion, and more). Other notable releases include the multifarious Disting and General CV modules, as well as the mind-blowing Silent Way plug-in suite, designed to assist musicians in interconnecting their modular synths to various software environments.
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