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The ESX-4CV is an expansion module for the ES-4, ES-40, or ES-5, adding four CV outputs from one expansion header.

In order to squeeze four 12 bit channels through one 8 bit connection, the channels are time-multiplexed and so effectively run at one-eighth of the audio sample rate. For example, if the audio interface/DAW is running at 48kHz, the ESX-4CV's outputs are running at 6kHz. This is still plenty fast enough for most CV purposes, except for audio-rate modulation and the very fastest envelopes. Because the outputs are still derived from the audio stream, they retain the advantages of the ES-3/4 over traditional MIDI-based interfaces, that is, rock solid timing and absence of jitter.

The outputs are hardware calibrated and so do not require the use of e.g. Silent Way's software calibration when used with standard V/octave synths/oscillators. That said, the ESX-4CV's 12 bit resolution is adequate to perform software calibration if required (e.g. to cater for misbehaving oscillators that don't track well to a standard calibration), or to support oscillators with a Hz/V response.

Specifications The ESX-4CV's specifications are as follows:
  • Panel width: 4HP
  • Module depth: 26mm
  • Digital input: connection from ES-4, ES-40, 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: 22mA on the +12V rail, 18mA on the -12V rail (40mA total)

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.



This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.

Product Specs

Condition
Mint (Used)
Mint items are in essentially new original condition but have been opened or played.learn more
Brand Expert Sleepers
Model ESX-4CV
Finish Black
Categories Modular Synths, Eurorack

Herman K. - February 19, 2020

Herman K. - February 19, 2020

Fred B. - February 16, 2020

Carson M. - February 16, 2020

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Expert Sleepers ESX-4CV Black
$74.14
+ $23.40 Shipping