You must have EAX effects enabled for music playback. Or, if you are using multi-channel speakers to playback stereo content, you might get "echos" if you are using CMSS2 rather than CMSS1 (CMSS is also controlled from the EAX configuration panel).
i uninstalled all the drivers and software and used just a new driver and its setup to headphones and it still echos, it has a echo on all the speakers settings but headphones it isnt as bad. im gonna be getting a new motherboard in a few days so ill have to reinstalling windows and i hope it fixes all the echos. thanks for all the help