Sorry for reviving this (a bit) older thread, but I too will soon be a convert going back to CD-playback, and time around with the thread-relevant Pro-Ject Audio Systems CD Box RS2 T + Pro-Ject Audio Systems Power Box RS Uni 4-way Linear power supply.
Initially I was on the verge of going more all-in with a dedicated streamer to replace my DIY music/media server, however circumstances challenged that decision; over time listening extensively to two different setups at friends of mine (both of whom use outboard active setups with high eff. main speakers + subs and similar main speaker amps and digital crossovers to mine) - one with a Grimm Audio MU1 streamer + Mola Mola Tambaqui DAC and the other with named Pro-ject CD transport + LPSU + Weiss DAC-1 - I quickly started realizing the sheer quality of the latter, CD playback-based source with its fleshed out/uninhibited, analogue, transparent and live-sounding imprinting. Not in any way to diminish the qualities of the MU1 streamer, which is a fantastic streamer. Still, knowing both setups very well and having heard different sources in their chains I've come to the conclusion that the Pro-Ject CD transport + LPSU is my preferred sonic "meal" and is simply too good to pass.
The takeaway for me in addition is the price difference between the different source options mentioned. The MU1 is more of a "Swiss knife" with a preamp section and most any musical repertoire at the tip of your finger, but at roughly 4 times the price and still being the slightly inferior performer to me, I'd say the Pro-Ject combo is a downright bargain.