The Xmod is one of Creative's latest external audio product offerings, boasting support for the PC, Mac and standalone functionality, this little device is meant to sit between your audio source and your speakers, acting in real-time improving your audio output using the different tricks learned from developing those SoundBlaster boards for so many years.

http://www.techspot.com/review/55-creative-xmod/

Please leave your feedback here. Thanks!

Personally I wouldn't use one for free...be always skeptical about magical boxes that supposedly increase the audioquality. Well, actually it could make some poor systems sound better but all measurements I've seen show increased levels of bas and treble and more troublesome the distosion levels which skyrocket.

(I'm happy with my extrememusic - crystalizer turned off of course)