HI, Shadowlight ,yes windows 10. Dsd settings are; buffer- default. Dac bits- default. poly-sync-shtr-mp-2s, 48x256, dsd 5v2-256fs. These settings play fine. It's only when I switch to 48X512, AMSDM7-512FS that it plays fine up until a minute then the hissing starts. Thxs.