@kalali-- I just picked up a Freya a few days ago, mostly to try a balanced passive. I've only been able to put a couple hours in it, but, FWIW, some very preliminary initial impressions, most echo what others have said. It needs more burn time and more actual listening.
--the passive is better than the built-in volume control on a cheaper DAC (although it's supposed to be a decent volume control). a little thin-sounding, comparatively, but transparent with very good detail. like it just for the passive. it hope it works as well for the better DAC when I swap it in later.
--the clicking for the volume control on the Freya is a bit disconcerting, at first, but that's how it's supposed to be.
--the difference in gain from passive to JFET to tube is very steep. takes a few seconds to try to level out, if trying to compare. also, i'd suggest not clicking from passive straight through to tube, if you were already cranking it in passive.
--I don't yet love the JFET. Seems to add just a hair of glare and shoutiness. Take that with a few grains of salt, though. It's way too early with too limited gear to make a solid criticism of it.
--The tube output sounds ok, and adds some richness (and a tiny bit of noise) and loses a little bit of detail, but this is with just a few hours and on the fresh stock tubes. It is not a very "tubey" sound. Very, very neutral compared to most tube pres I've heard, particularly those that use 6sn7. With time and/or with vintage tubes, I hope it comes "alive." At this point, it will have a very long way to go, if one is hoping for an appreciable amount of tubeliciousness.
--is the switch on the back really the only way to turn this on and off?
Anyway, so far, I think it's a versatile cool piece. Seems well constructed, but, of course, no billet aluminum, no multiple copper sub-chassis, no Porsche paint, etc.
Probably a completely different sound from the CJ.