The Pro-Ject has a new, optimized drive system also used in $40K transports.
I picked up a Power Box RS Uni 4 way (massive) on the cheap for mine and any improvement was not noticeable. Pro-Ject seems to be able to optimize SMPS. Try any LPS and see if you can hear a difference. I too have replaced all of my wall warts. Some make a huge difference, some little or none.
Head to head comparisons I've seen prefer the SQ of the Pro-Ject.
I picked up a Power Box RS Uni 4 way (massive) on the cheap for mine and any improvement was not noticeable. Pro-Ject seems to be able to optimize SMPS. Try any LPS and see if you can hear a difference. I too have replaced all of my wall warts. Some make a huge difference, some little or none.
Head to head comparisons I've seen prefer the SQ of the Pro-Ject.