Expert Sleepers - ES-3 Mk4


The ES-3 Mk4 module converts, in a similar manner as the ES-1, control signals from a DAW (e.g. from software like Volta or Silent Way) to control voltages. Unlike the ES-1 it doesn´t use your audio interface´s analog outputs, but the optical output (ADAT Lightpipe). Just connect the ES-3 Mk4 and the audio interface via an optical cable. The outputs of the mk4 version are equipped with multicolor background lightning.



  • Input connection: Optical, ADAT Lightpipe standard
  • D/A conversion: 24 bit, 105dB SNR typical
  • Output connections: 8x 3.5mm jacks, DC-coupled
  • Maximum output voltage: approximately ±10V DC
  • Indicators: LED for ADAT clock sync; An LED ring at each output indicates the output voltage

96kHz compatibility: The ES-3 produces 8 outputs as normal when the ADAT interface is operated at 44.1/48kHz. In double speed mode (88.2/96kHz), the ES-3 outputs 4 channels, duplicated across pairs of outputs (ES-3 outputs 1&2 carry ADAT channel 1, outputs 3&4 carry ADAT channel 2 etc.).


Looking for an optical Toslink cable for the ES3? We have a 3m long one HERE.


One optical input (ADAT Lightpipe standard); eight CV outputs (1/8" minijack mono)


3U Eurorack module, 4HP wide, 26mm deep
current draw: 168mA @ +12V and 30mA @ -12V (198mA total)

0.093 kg
Article Number
availability ? coming soon
€ 19% VAT excl. €158.82 € 19% VAT incl. €189.00
Excl. 19% VAT, Excl. shippingLieferzeit 1