I'm listening to a pair of Universities right now. They are an easy-to-love speaker!
What was this model called? The cab looks just like that Goodmans model from the early '60's with the slanted front like that.
I love speakers with this kind of sound. Super-engaging/musical with smooth highs, perfect mids, and a very-organic, fleshed-out low-end response. Some people call it "innaccurate" or "colored-sounding", but I actually think it's the opposite. I want a speaker that draws me in like a tractor beam. To me, that's equally as important as any specs. If a speaker doesn't emotionally-engage me, then it's not what I'd call "accurate". Whatever the case, that's my preference, and the old Universities apparently do this very-well. If I hadn't discovered Wharfedales, I could just as easily ended up with some old Universities. They're in that same club, so to speak. I started off trying to find some Bozaks but some Wharfedales came up in CT at a price I couldn't refuse, and it went on from there (And I have Six Cats to thank for my current Wharfies... Jesus, these things are so-much fun to wake up to in the morning, the way they can totally floor me at such a low volume like they're doing right now... I'm betting that those Medallion XII's are like that as well where you don't have to crank them to get great sound).
I love a speaker that's super-smooth while still able to remain very-detailed, clear, and dynamic, with good separation/space between instrument, and it sounds like the Medallion XII's do this well. I bet the OP's sound great with even the most-mundane, overplayed '60's and '70's classic rock/pop, like the stuff you hear on oldies and classic rock radio stations (Mid-late '60's Beatles stuff must be divine through those). I've been keeping my eyes out for a pair of nice Universities, although it may be a while. I love a speaker with class AND personality. Too-many speakers out there look like a monolith with a couple holes cut into it's impenetrable surface. Personally, I think the OP's Medallion XII's are one of the best-looking pairs of speakers I've ever seen. Stylistically, they are perfect, although didn't he change the grillcloth? That one small change took them from "meh'" to perfect (That black stuff they had originally, if I remember correctly, was kinda' hideous).
I would LOVE to find a pair of those S-series University models. The cabs look similar to the old EV stuff (like the Regency Aristocrat, and others), but with a voicing that's MUCH-more to my liking (I've never been a big EV guy for hi-fi use... They're great for pro use, but like the old Jensens, they're not my cup of tea for home hi-fi usage).