Prefix off preamp.

Hey, how do people feel about naim phono stages being used without a seperate power supply. I firstly had a stageline K powered by the aux 2 on my pre and although things sounded very clear, it really didn't get the blood flowing. I have since upgraded to a prefix K and I can hear improvements in terms of refinement, but still the overall quality seems light. I remember having a flatcap for a short while and tried this on the stageline alone. Memerory tells me that the improvement was huge. I am still on the upgrade path, but wonder if people have the same findings as me. I am thinking of putting the LP12 in it's box for now until a supercap arrives, then I will put the hicap on the prefix only. This will probably improve sound from my CDX2 as the hicap is no longer drained by powering the prefix. What do you guys think?

Mario.