I had a pair of ThinkSound cans, and the cable from these doesn't work and the AT's. Too bad, they are nice cables and much better made than the Audio Technica cables. Customer Support for Audio Technica said, regarding the proprietary cables:
"We did take on this user feedback after the release of these headphones, however, and understood that customers were wishing to upgrade the cables further and this would be beneficial for the headphones, rather than detrimental, so last year we re-released the headphones as the ATH-MSR7b which now features A2DC connectors to enable our customers to change the cables at will, to ones that suit the quality of the headphones and the requirements of the user.
At this time, I cannot guarantee whether there are any headphone cables that will fit the ATH-MSR7 headphones other than those provided - some high quality manufacturers may be willing to provide a connector to their headphones that would be suitable for fitting into the headphones, but at this time I'm unaware of any alternative cables that are directly compatible with the headphones."