TUbajohn20J wrote:CTAYLOR and Yosef:Tubist are right. The new King is based off of the Conn 52,56j tubas. Here is the new King compared to the old one. King based this new design from the Conn tubas.

Both look nearly identical to me, except for the bell stack. On the other hand the Conn, though it is the same overall size and height, looks quite a bit different. More importantly, it also plays quite differently, while the new King is very similar to the best of the old 1241's that preceded the tall-bell 2341's.
I think it would be more accurate to say that the Conn 5xJ derives from King rather than saying that the new 2341 derives from the Conn. As I understand it, the Conn is made in the King factory at Eastlake using King parts, and the decision to use the Conn brand instead of King was based on marketing.
Even so, the King has a different taper profile through the valves than does the Conn, and they do not play or sound the same to me. The Conn is more open-blowing, but not easier to play. I think the 2341 more resembles the Getzen G50 in how it plays and feels, and that is high praise from me.
The 2341 is just about the only new tuba in BBb that really captures a traditional American approach. Pay attention to valve alignments and general fit. I've seen one early one that looked like they used four-foot pry bars to make it squeeze together during assembly. And by my experience, some of those in the first batch had fourth valve branches that didn't resonate well; this was generally corrected in later models, of which I've not yet played a bad one.
Rick "thinking it would be hard to do better in a new 4/4 BBb tuba" Denney