Costanzia, as you're probably aware Robert Harley (now editor of TAS) used the Ref 600 when he did his review of the Eidolons several years ago. He liked the combination then. I own Eidolon's, but I use Atma-Sphere MA-2s with them and cannot comment from direct experience on the Ref 600 or your JL2s. I suspect the problem is that not many of us have heard the specific combination you're asking about.
