I own the REF2SE because the dealer let me take it home. If yours doesn't do that, he's a fool. Find another dealer. Yes, you should be able to enjoy it's wonderful qualities even with a SE system, if as suggested, your system is good enough.
ARC Ref phono stage.
I have always enjoyed the AR2 reference system phono stage at the dealer. It is always in the reference room, with Balanced ouputs into AR reference preamp. My electronics are single ended SS, Spectral Reference. Question for those out there is whether I would experience all of the sound of the phono stage?