ES8:

The ES-8 is a USB 2.0 class-compliant audio interface in a Eurorack module, with DC-coupled inputs and outputs that can be used for both CVs and audio. As such it is directly compatible with all popular computer-based CV generation software (e.g. Silent Way, Max/MSP, Reaktor, CV Toolkit, zMors, Audulus, Bitwig Studio, etc.) as well as audio and CV processing iOS apps.

The ES-8 also has ADAT inputs & outputs. This could be used for example to expand the I/O count via an Expert Sleepers ES-3and/or ES-6, or to connect a traditional audio interface to add, say, mic preamps or 1/4" line outputs (for example with the Behringer ADA8200).

Without a USB connection, the ES-8 can be used as a standalone ADAT-to-audio converter, providing DC-coupled I/O expansion for another ADAT-equipped audio interface.

An expansion header allows connection of an Expert Sleepers ES-5, to which in turn you can connect Expert Sleepers gate, CV and MIDI expanders.

The ES-8 has a high quality internal clock, and it can optionally sync to the clock from the input ADAT signal.

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ES5:

The ES-5 is an expansion module for the Expert Sleepers ES-3 Lightpipe/CV Interface, ES-8 USB Audio Interface, ES-9 USB Audio Interface, ES-10 ADAT Interface, disting EX, and disting NT.

It piggybacks on one of the host module's stereo channels to provide eight gate/clock/sync/MIDI outputs on the ES-5 itself, plus further expansion headers to connect up to six expansion modules e.g. the ESX-8GT Gate Expander, the ESX-8CV CV Expander, or the ESX-8MD MIDI/DINsync Expander.