shuang Posted July 17, 2019 Share Posted July 17, 2019 I have a weird problem with a Roon / sMS-200ultra/ USBultra setup connecting to the USB input of a Hegel 590 Integrated Amplifier. I am getting a high pitch but faint sound out of my speakers that goes up and down with the volume when either or both of the SOtM units are in the chain. When I go directly from the Roon server to the Hegel there are no problems. In another configuration Roon / sMS-200ultra/ USBultra -> PS Audio DirectStream DAC USB input -> Pass Labs Preamplifier/Amplifier I have absolutely no problems. Trying to figure what incompatibility there is between the Hegel 590 USB input and 200ultra alone or 200ultra+USBultra. I have tried logical checks like swapping USB cables, connecting the Hegel to a different AC outlet, but no luck. Also wondering if there is a Roon Server setting that might solve the high pitch sound issue. Link to comment
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