"Just got through with my evaluation of using Pro-ject's own up-graded linear power supply, which I stated earlier in this thread lead to significant improvements over their standard switch-mode power supply, with Linear Tube Audio's own customized linear power supply. LTA changed the rating from 12V-3A to 20V-3A.
These subtle but easy to hear positive changes were:
1) Transient speed and overall dynamics/aliveness increased.
2) The sound-stage opened up with more air around instruments.
3) Transparency/clarity went to a higher level.
4) The purity of timbres/tonality/colors increased.
Great stuff! The Linear tube Audio power supply costs $645, which is about two hundred dollars less than Pro-ject unit. Therefore, my conclusion is if you get this transport, go for the Linear Tube Audio power supply."