Schiit Bifrost vs. the original Peachtree Dac-it

So if I were not going to use it with a powered USB source I would have to buy a wall wart with the right specs? Probably not going to do the battery thing even though I already have one of the Ankers you mention. I don't thing the Anker will charge and power something at the same time. Have no desire having to worry about whether my DAC has a 'charge'.

Have also heard a lot of negatives about USB power.

@n80 
 
ASR measurements show no difference in performance using USB power nor the Anker. The D50 uses a standard 1amp 5v, so something like this will work. Again, won’t defend the decision to not include one.

When I was comparing DAC's Amazon would show , frequently bought together,  pairing the D50 with the IPower low noise power supply which costs $50 so it came to about $300 total. I went with a different dac and don't know why they don't supply something with the D50.