The SoundBlast ain't gonna help me but thanks.   I hear myself in the headset, I don't really consider an echo.

Bought XB950BT 1 month ago and can't take them off, good thing the battery last 20 hours, I never manage to end it but got really close on some days.   The only downside is that when I'm using the MIC on games, the sound is played trough the hands-free interface, which has a pretty bad sound...