Expert Sleepers ES-3 MK4 Lightpipe to CV interface

The outputs can be used as control voltages (CVs), for example with software such as Expert Sleepers , and can also be used as audio outputs at high, modular synth-compatible levels.

With the ES-3, a single optical cable is all that is need to bring direct CV control from your DAW right into the heart of a modular system.

The ES-3's specifications are as follows:

• Panel width: 8HP
• Module depth: 50mm
• Input connection: optical, ADAT Lightpipe standard
• D/A conversion: 24 bit, 113dB SNR typical
• Output connections: 8x 3.5mm jacks, DC-coupled
• Maximum output voltage: approximately ±10V DC
• Indicators: LED for ADAT clock sync; illuminated sockets indicate output voltage (+ve/-ve)
• Current draw: 148mA on the +12V rail, 18mA on the -12V rail

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.

February 2017 sees the launch of the "ES-3 mk4". Functionally equivalent to the ES-3 mk3, the mk4 adds these improvements:

• Illuminated jack sockets
• Less deep