Power supply for Ultra Rendu

[Bill_Janssen (Wigwam wool socks now on asymmetrical isolation feet!)]

@Joao_Lins

I am building a linear power supply to feed a Sonore UltraRendu

While it sounds like a fun project, if you’re expecting some change in the sound, bear in mind this post:

Does ROON require a separate streamer?

I’m really sorry, but that statement couldn’t be further from the truth: See the second picture. The Rendu incorporates the LTM4625, a step-down switching regulator operating at 1MHz: With regard to adding a LPS to the Rendu, Amir had this to say: “Of note, no matter how clean your input power supply is, the switchmode “post regulator” above will make it “dirty” again, assuming everyone agrees that switching regulators are dirtier than Linear Power Supplies. In that sense, I don’t see th…

Maybe you only need to consider the ISO REGEN. It comes with a 7.5V/2.9A power supply, so 7.5x2.9 watts, 21.75 watts. So you’ll need a 6-9 volt supply providing at least that much power, for the REGEN.