lowrider57
Power supply specs are: 12v, 1A, 2.1mm connector. The DAC has a grounding post if needed.
Great linear supply using "R" Core Transformer Panasonic caps ect, and not too expensive.
https://www.ebay.com/itm/TeraDak-DC-30W-TOUCH-DC12V-1-8A-Hi-Fi-For-Audio-Linear-Power-Supply/1309128...
Cheers George