Thanks for the reply. I just realized that I had a JCAT USB isolator in the chain. After removing that the M Scaler plays DSD with sound!Native DSD works fine with Roon and JRiver on the M scaler - the native DSD uses Dave code. You must set the SR OP setting to white on the Hugo M scaler, otherwise it will be silent as an OP, as native can't be TX as an SPDIF directly
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