Here you can buy audiowerkstatt products:
audiowerkstatt.de (https://www.audiowerkstatt.de/en/productlist)
schneidersladen.de (https://www.schneidersladen.de/en/manufacturer/audiowerkstatt.html)
thomann.de (https://www.thomann.de/audiowerkstatt.html)
juno.co.uk (https://juno.co.uk/labels/Audiowerkstatt)