Expert Pro 220 - SAM solved?

[markush]

Better power supply is the single most efficient way you can optimize the performance.
Niagara 1200 with Monsoon and Z3 or all the way up will bring you unbelievably results

Did you try it on Devialet? 
I heard that D class is pretty dependent on the current. I have some feeling that my Devialet sounds better in the late evening   
I am just curious can some power conditioner make an impact (positive, of course  on Devialet sound. 

thanks
Zoran

I did extensive testing with a 220 Pro as well as 440 Pro - and it’s the same impact that power supply had. Just using an Audioquest Z3 will immediately improve the sound. And if you go for a Niagara 1200 or 3000 the difference is absolutely outstanding. I have to admit I would have never thought it makes such a difference.