Two thoughts, 1) surprisingly, given the huge power supply, the XDS1 is very sensitive to the power cord used. It particularly likes the Jorma Prime and the Stage III Zyklops. Each sounds a bit different but both bring out the best in the unit. The PD is less sensitive to power cords. 2) Likewise, the EMM Labs benefits from good mechanical isolation as do the top of the line Esoterics. It particularly likes Cerabases. The PD works pretty well with the factory supplied feet.
I have had both the PD and XDS1 in my system for extended listening as well as some of the Esoterics and I am buying the XDS1. Each of the others does some things better but taken as a whole, the XDS1 nis the one that I chose to live with long term.
I have had both the PD and XDS1 in my system for extended listening as well as some of the Esoterics and I am buying the XDS1. Each of the others does some things better but taken as a whole, the XDS1 nis the one that I chose to live with long term.