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How to use the analog and digital audio outputs of Primo?

Volumio Primo has its DAC onboard. It mounts an ES9028Q2M DAC via I2S connected to the Tinkerboard S mainboard.

This means you can choose between :

  • RCA ANALOG OUTPUTS (connect RCA cables to the inputs of an amplifier)

  • COAX SPDIF DIGITAL OUTPUTS (connect COAX cable to the input of a DAC)

You can also choose the USB OUTPUT of Primo as third choice, to connect USB DAC and reach the max PCM audio resolution (768KHz/32bit) and other advantages, such DSD and MQA stream.

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