After hearing tempting results using the software version with Winamp (connecting the output from my PC to my main music system), I finally bought the hardware version of the Wow Thing, from SRS Labs. It will definitely, without a doubt, increase the sensation of space between and around the individual instruments (specially a near stage locations like jazz ensembles or string quartets. You can clearly perceive the new space added, and can control the soundstage and imaging along the horizontal axis (adding or substracting at the same time space between you and the instruments). I would say that about 60% of my recordings were successfully enhanced by this little device, the rest sounds better (at least in my system) in their original format. The Wow Thing is a DSP processor, it works using psychoacoustic research to add time (which our brain translates to space) between the stereo channels. My system is very capable to draw "Holographic" imaging with some recordings, and thanks to this little device, now I can enjoy even more precise imaging with some recordings. Actually sometimes I can't even trust my eyes when I open them and see no apparent source from where Im clearly listening instruments and voices!