@hdm can you explain the differences between encapsulated, toroidal and r-core transformers, and why an r-core based power supply might be a better choice for a small digital device with no internal power supply? Honest question. I’ve used various external LPS from MCRU, Swagman Labs and Teddy Pardo with generally positive effect. My favorites right now are an 18V Swagman SE that powers my ProJect phono pre and a Teddy Pardo dual supply that supports a digital front end consisting of a Bluesound Node N130 and Chord Qutest. The 12V MCRU SE supply I had previously was pretty good, but those have become quite expensive. If the argument is compelling enough in favor of an r-core supply, I might be convinced to give one a go. At $108 it is a pretty low risk experiment.
kn