Hi Mirco,Which version on your YD7001 do you have installed?I don't know the problem. With my ESU and Zimo sound decoders, the sound goes as it should up to F28. Also works through WinDigipet 2021 Pro.I have installed firmware 8.2.2 on my YD7001.Please also ask your question to Mr. Kast from the company YaMoRC. Maybe he knows a solution.Best regards, Christian
His right Name is: Karst Drenth! Not Mr. Kast.