Creative Xmod External Audio
 

With the popularity of laptops over desktop PCs, and the zillion other
portable media devices that interface with your computer rather than with
your standard stereo system, it comes as no surprise that Creative is
looking for ways to cater to that segment as well.<br><br>

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/