I discussed this very topic in an earlier thread regarding the 5400 vs. the Cambridge 840C. I actually traded my Saturn for a 5400 a couple of weeks ago. To my ears, in my room, and with my gear, the Sony has a more extended high end and does a better job of sorting out details in complex music. The Saturn's low end was a tad bit tighter. The Sony, overall, is better suited to my own tastes, but I can easily see how someone else (like the guy I traded with) might prefer the Rega (I certainly enjoyed the nearly two years I owned mine).
As always, making your decision based on others' experiences is a slippery slope, but add me to the list of happy 5400 owners. Good luck.
As always, making your decision based on others' experiences is a slippery slope, but add me to the list of happy 5400 owners. Good luck.