Thanks for the links. Do these allow the the connector to click into place like the stock TH900 connector?
I've been comparing the Furutech to the stock connector on the TH900 cable. What the difference is is the smaller top portion of the connector extends further on the TH900 connector, and there is a ridge on the front face of the connector instead of the sides like HD650 connectors. You can see in the picture below(FYI this is not my photo), of the Furutech FT-2PS, what would need to be removed. It is circled in RED. The light blue dotted arrow is where the ridge is on the TH900 connector. I'm not sure if I can get away without the ridge on the front. I'll have to purchase some less expensive connectors and experiment.
the Furutech not going well. They are the same as Sennheiser HD600 / 650. They have a double step. I linked the connectors have only one step and are identical, such as measures to fostex original.