I recently came across a demo booth in Singapore that is showcasing the Xmod. I played around with it and was skeptic at first but it does seems to make the MP3 that were playing then sound better.

I checked the device and found 2 main settings Crystaliser and 3D mode. I like the crystaliser mode best, The bass and drum sounded punchier and vocals are clearer. The 3D mode does give a surround effect but I prefer without. In fact, those speakers Tsomething were pretty good too. Has anyone owned one of these with their Macs?