@wharfy
I've have about 50 hours on my Fidelizer Nikola 2 LPS (Manufacturer said 200 hours for complete burn-in). Directly out of the shipping box with the initial listening exposure a few things were apparent within the first few hours and have gotten gradually better. In my opinion the Pro-Ject RS2 transport sounds excellent with the standard wall wart power supply. If someone decided to stop there they'd have a top level performing CD transport.
With the use of the Nickola 2 LPS there is not a "night and day" difference. It did not cause the wall wart powered Pro-Ject to sound broken. There are clearly noticeable improvements that elevate the sound quality from an already high standard.
1 The sound presentation opens up and the 3-dimensional aspect is heightened.
2 You are aware of distinct spacing and separation between the musicians.
3 Dynamic contrast is improved particularly lower level or micro dynamics, the overall sound is more nuanced. The subtle and small details are more apparent.
4 What's already excellent resolving ability is taken further.
5 The very good organic nature of the transport becomes more organic and the musical flow is just impressively natural. The antithesis of mechanical/electronic/canned.
6 The Pro-Ject straight out of the box with the wall wart has beautiful natural tonality of instruments and human voice. This my top sonic priority. I was actually surprised that this was improved. Wonderful fleshed out harmonically rich and fully expressed tone and timbre. Increased instrument reverberation and a very tactile/palpable presentation.
This is what I hear specifically with the Fidelizer Nikola 2 LPS. I suspect that other high quality LPS would do similar things. The Pro-Ject CD BOX RS2 transport with a very good LPS similar to mine paired with a high DAC is going to provide "superb " Redbook CD playback sound quality.
Charles