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RE: Both: LPS and Switching Supplies

I use a battery supply for my RPi and my DAC. It does make a difference. When I decided at some point to go back to an iFi iPower supply I thought maybe I wouldn't hear a difference after all, but my reaction was that it ruined the sound. I kept it that way for a few weeks and then went back to the battery. I believe I was using an Allo Boss at the time, so it was a single connection, now I have a Topping DAC instead and there are two connections from the battery. I've always thought it goes beyond the switching anyway, it passes along the noise from the mains, so a battery isolates that. My battery starts charging when I switch off the system automatically so there is always a full battery too, I've never run it completely down in one listening session.

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