Not a Moode problem but rather a Raspberry Pi hardware problem 
Poor Pi just can't supply the power via USB for this DAC and Headphone amplifier.
The obvious clue is in the specs...
However, there is an easy fix... place a powered USB hub between the Pi and the device.
Or if you are technically minded you could DIY one of these cables to use with your favourite power supply.
https://www.tnt-audio.com/clinica/221_diy_usb_e.html
Poor Pi just can't supply the power via USB for this DAC and Headphone amplifier.
The obvious clue is in the specs...
Quote:Power: USB 5V power rail no internal battery, 250mA idle current, the device contains up to 5000uF of capacitance and IOS/Android devices can start OTG operation only with Camera_Adapter and USB OTG Y-splitter cable respective
However, there is an easy fix... place a powered USB hub between the Pi and the device.
Or if you are technically minded you could DIY one of these cables to use with your favourite power supply.
https://www.tnt-audio.com/clinica/221_diy_usb_e.html
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bob
bob
