@vonhelmholtz Very confusing post. If everything is incredible, why worry about the power supply? Did you mean that the sound was lacking, not incredible, and you were interested in improving the sound?
Agreed, “incredible “ is quite the high praise . If that impressive, then the “dinky” power supply is obviously doing its job very well. Some SMPS wall warts are better quality and implemented than are others. This appears to be the case for Chord in this example.
A very good quality LPS could possibly further improve sonic performance. But if already “incredible “ why worry about it.
Charles