I would suspect that they would not sound the same IF,
I would expect Dennis Murphy's system to be slightly forward and more "detailed and airy" due to his musician background. His designs tend to be "closer" in feel than other commercial type designs.
I think Joe D's would be the medium of the two other designers with the level of neutrality and midrange accuracy that would shine above the rest of his design.
Albert's would likely have the best bass, this is his fundamental requirement for all of his speakers, I think his might be the least refined in the mids but may be the easiest to like for the widest audience.
All this is purely speculation but if you had an iron chef type format where they had little time to perfect every aspect and had to focus on their prioroties I believe this is what you would get.
If given a long time to design I think the sound of each speaker would get closer and closer to each other. All three know what "it's" supposed to soundlike and "it" does exist and given enough time they will get "it" right.
No what I mean vern?
