A. Dumas  wrote:
> On 13/11/2017 20:00, Michael J. Mahon wrote:
>> D.M. Procida  wrote:
>>> One thing puzzles me: how do the various supposed "hifi" boards such as
>>>  manage when they're running off the same
>>> crummy USB PSUs as the Pi?
>>
>> Additional regulation and filtering.
>
> I'll believe it when I see the specifications.
>

I didn't claim any particular DAC did it, but I did describe how one gets
clean power from noisy power.

In one case, I double-regulated a noisy +12v bus down to 5v and filtered at
both steps--and got clean, quiet 5v.

--
-michael - NadaNet 3.1 and AppleCrate II:  http://michaeljmahon.com

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