I have a nice pair of DX4s that came out of a pair of Beauhorns. They look & sound superb; age unknown (Lowthers are reputed to take 1,000 hours or more to fully break-in).
Note that one of the drivers did occasionally make that scratching noise that indicates the cone should be realigned - this is a simple procedure with instructions available online. I never bothered to do it as it was too rare to bother me.
FYI, here are some comments on the DX drivers (the 4 being the top-of-the-line) vs. the Alnico PM series from former importer Jon Ver Halen, copied from a forum post:
"The big neodynium magnets (DX4) do transients better than the Alnico - they sound faster and more dynamic. The Alnico magnets capture more of the low level information, sounding warming and capturing the harmonic development better. I find that most user into jazz and rock prefer the DX4 sound, and if you enjoy classical/ vocals the A series does a better job."
So neither is objectively superior.
They will ship in factory Lowther packing, in a large outer box with more padding.