For $395, the 7volt CIAudio unit would be a worthwhile upgrade.
Linear Power Supply
I have a Sonore Optical Rendu with the base SGC power supply. I’m considering upgrading to the Sonore power supply, but I have no experience on how much power supplies make a difference. I have a pretty revealing system and I have definitely heard changes with many small tweaks.
So how much do these power suppliers make, and are there other options I should consider?