Let me preface this by saying how much I like to fix things. As such I have acquired two sets of functional, but broken headphones that apparently were inconvenient to their previous owners.
The first pair is a set of Shure SRH940s that have cracked at their hinge (an overwhelmingly common issue) that i've managed to sort of repair with some metal tape and some rubber bands, but the repair job, while it holds the headphones together, is not particularly adequate and could use some improvement.
The second pair is a set of Beats Pros in which both speakers still work, but the connection between the two has severed and requires a headphone splitter and two cables, but is otherwise functional (to the extent that the speakers in Beats headphones were ever functional to begin with)
As such I would like to see if I can replace the drivers in the Beats Pros with the significantly better Shure SRH940's drivers. The driver size of the Beats is 50mm and the driver size of the Shure is 40mm so I don't think there should be a problem, but I would appreciate any available insight before I go messing around with them.
(And yes, I am reasonably experienced with a soldering iron)