If you’re looking for power tweaks, I’ve had very good results with the iFi AC ipurifier.
My sources are fed into an Equi=Core 1800 and my amp into the wall.
The iFi plugged into the amp circuit creating a very low noise floor which produced more detail and a spacious soundstage. All for only $99.
https://www.crutchfield.com/S-4plA32ELuPA/p_246ACIPURI/iFi-Audio-AC-iPurifier.html
My sources are fed into an Equi=Core 1800 and my amp into the wall.
The iFi plugged into the amp circuit creating a very low noise floor which produced more detail and a spacious soundstage. All for only $99.
https://www.crutchfield.com/S-4plA32ELuPA/p_246ACIPURI/iFi-Audio-AC-iPurifier.html