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exteroceptive
While the Class D nerds are in the house, what's the thinking on PSUs for audiophile use? When I was a boy, DNM did a battery power supply for their preamp on the grounds of providing low noise and low impedance. With 30 years of battery advances since then, I wonder whether the #tartmode power amp PSU might be something like a 48V Lithium pack out of an e-bike?