I haven't even amp'd them really yet just using my e1da doggle, I did do a little eq'ing to get rid of that weird mid shelf.Agreed, I adore mine. They do well both with tubes and SS amps, too.
They are not perhaps the bargain a $400 pair of Elears are (ridiculous value/performance ratio, especially with upgraded cables and a good amp)- BUT for about a $1,000 pre-owned/mint condition you get a big chunk of Stellia performance AND better looks? Come on!
That said, some folks may take umbrage to the strong mid bass- but that’s part of the fun for many. The ZMF Atticus units that show up pre-owned disappear in minutes for a reason- and while I have never compared the Radiance to the Atticus, all listening notes indicate they are very, very similar in sound signature.