I haven’t heard the Rega amps, but I can yammer on at length about the Schitt products I’ve used...sort of like this: I’ve been using an original Freya for a couple of years and it’s quiet and very coherent, and it sounds beautiful. I’m using it with a low-ish power single ended tube amp (Dennis Had Firebottle) into efficient speakers (Klipsch Heresy III). Best sounding rig I’ve owned over many decades, and maybe the least expensive! Also, rolling tubes is entertaining if you like that sort of thing...I’d buy the new Freya + if I needed another one. Note that Stereophile gave a very positive review of the Aegir amp in the most recent issue, and, as with most Schiit products, nothing can touch it at anywhere near that price, and after this review it might be hard to touch it at all since I imagine they’re gonna be in backorder limbo.