@Rinaldi
your dac does not have a dedicated power supply and relies on the RPI supply which appears to be insufficient to run both the Pi and DAC.
Here is how to supply your DAC with an external power source using a simple cable modification...
https://www.tnt-audio.com/clinica/221_diy_usb_e.html
your dac does not have a dedicated power supply and relies on the RPI supply which appears to be insufficient to run both the Pi and DAC.
Here is how to supply your DAC with an external power source using a simple cable modification...
https://www.tnt-audio.com/clinica/221_diy_usb_e.html
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bob
bob