Power conditioners and wall warts

Great topic. I, too, would like to hear opinions.
In reply, I think there are many who are replacing wall warts with Linear Power supplies, to great effect.
Bob

Bob, what’s a linear power supply in this context? A plug and play replacement for a wall wart?

I like to put wall warts outside of the audio power conditioners. 

When I had more room, I used a Furman with separate filter sections. That kept any wall wart noise 2 filters away from audio devices, while everything was protected.

I don’t have that kind of room, so I use a smaller Furman and a separate conditioner or a linear supply.

I use a Raspberry Pi as my digital music streamer, and a separate linear supply for my DAC.

I rely on the DAC having galvanic isolation (ground loop) and noise and jitter rejection built into the USB receiver. Those have gotten much better lately, probably thanks to cheaper chips which do all of this for you.