So which is it? You have Z6A or X12? You keep changing your story to suit the current comments is that it?
Mine are the EarForce HPA2, and I've had them for years. The Z6a seem to have a cheaper headset and break as we heard on many, many threads from lyric

You seem to have a problem with surround sound headsets and shoot them down when ever someone post about them. I on the other hand have had mine for years with out any issues and they sound awesome. My comments are that TurtleBeech headset are great and I've had no problems with them.