Thanks for the suggestion. I did contact Electromod and got a helpful reply but it would involve using the current SR207 case holder with the bushes removed, but it will be quite loose. May well have to do this ...

Hi, I have a pair of pretty old Stax Lambda. The case holder connection to the headband is broken. It is the connection between the straight cylindrical metal bit to the U shape holder for the head speakers. Worry about the long winded description but can't seem to find a way upload a photo...

Read quite a few very helpful posts in the past few years. Just joined.