Expert Sleepers ESX-4CV CV Expander

Expert Sleepers has introduced the ESX-4CV CV Expander,an expansion module for the ES-4 or ES-5, adding four CV outputs from one expansion header. Using Expert Sleeper’s Eurorack Modules, you can use your computer as a powerful control voltage source with a modular synthesizer.

The ESX-4CV’s specifications are as follows:

  • Panel width: 4HP
  • Module depth: 26mm
  • Digital input: connection from ES-4 or ES-5 module
  • Analogue outputs: 4x 3.5mm jacks, DC-coupled
  • Output voltages: ±5.33V, hardware calibrated
  • D/A conversion: 12 bit, using high precision Analog Devices DACs
  • Indicators: 2 LEDs per channel (+ve and -ve voltages)
  • Current draw: TBC

The front panel is drilled for both Doepfer and Analogue Systems mounting holes (using a ‘slot’ rather than a single round hole). The power connector is a Doepfer standard 16 way IDC, with -12V furthest from the top of the board.

Note: The ESX-4CV requires software in order to time-multiplex the four output signals, and to encode them for the ES-4 or ES-5. Currently, the only such software is the ‘ESX-4CV Combiner’ plug-in, part of Expert Sleepers Silent Way.

Silent Way is available in AudioUnit and VST formats for Mac OS X and Windows. Use of Silent Way therefore requires a compatible host application (DAW). For Pro Tools users, Silent Way is known to work with the FXpansion VST-RTAS wrapper.

The ESX-4CV is expected to be available by May. Pricing is TBA.

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