Disclaimer of Warranty
Please do not download software from this page unless you have read the paragraph below and agree to it.
Expert Sleepers disclaims all warranties, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. This means that if you download software from this page, you agree that Expert Sleepers has no liability for any damages that you incur when using it, whether or not those damages are caused by a problem with the software, and whether or not you have brought such problems to Expert Sleepers's attention.

New Licensing

In June 2019 we transitioned our software licensing from eSellerate to ilok.com.

The old serial numbers can easily be identified because they all start with 'EXSL' - for example all Augustus Loop v2 licenses start with 'EXSLAL2'. Please visit the Legacy Downloads page for versions that support these old serial numbers.

The versions below use the new license scheme. You will need an account on ilok.com to redeem the activation code sent to you when you purchase. Your software can be activated onto an iLok, to the iLod Cloud, or to your local machine. A physical iLok is not required.

Please see the Licensing Transition page for information on updating old licenses to the new scheme.

Please install the latest iLok License Manager before attempting to use the plug-ins below.


64 bit AU, VST & AAX versions for macOS and Windows.

Augustus Loop 2.5.7 2.5.7 2.5.7 2.5.1 2.5.1 Manual
Crossfade Loop Synth 3.3.10 3.3.10 3.3.10 3.3.2 3.3.2 Manual
Little Spacey 1.2.4 1.2.4 1.2.3 1.2.0 1.2.0 Manual
Meringue 2.2.5 2.2.4 2.2.4 2.2.0 2.2.0 Manual
Minky Starshine 1.2.3 1.2.3 1.2.3 1.2.0 1.2.0 Manual
Oomingmak 1.2.3 1.2.3 1.2.3 1.2.0 1.2.0 Manual
Silent Way 2.11.4 2.11.1 2.11.0 2.11.5 2.11.2 2.11.2 2.9.0 Manual
Spectral Conquest 1.1.5 1.1.4 1.1.5 1.1.0 1.1.0 Manual
Warbler 1.3.3 1.3.3 1.3.3 1.3.0 1.3.0 Manual
Latency Fixer 1.1.1 Manual
USAMO 1.3.0 1.2.4 1.3.0 1.3.0 1.2.0 1.2.1 1.1.0 Manual

'AU' = Audio Unit format plug-in.
'VST' = VST format plug-in. (VST is a trademark of Steinberg Media Technologies GmbH.)
'Manual' = User manual, if downloaded separately. Some plug-ins bundle the manual into the plug-in download.

Max Externals

Externals for Cyling 74's Max/MSP. A very nice maxhelp file for these can be found here.

Intel/M1 64 bitIntel 32/64 bit
Support for the ES-4, ES-40, ES-5, ESX-4CV and ESX-8CV modules
1.0.3 1.0.2 1.0.1
Use with the ES-3 module when running at 96kHz
1.0.2 1.0.1 1.0.0


Driver installers. Please choose the right download for your version of Windows.

Windows 7/8Windows 10/11
USB Audio 2.0 driver for the ES-8 & ES-9 n/a 5.68.0
USB Audio 2.0 driver for the ES-8 & ES-9 (last Windows 7/8 support) 5.12.0
USB Audio 2.0 driver for the ES-8 (legacy version) 3.40.0 3.40.0
ASIO Driver Technology by Steinberg Media Technologies
ASIO is a trademark and software of Steinberg Media Technologies GmbH

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