Creative’s luxe fancyphones let you toggle surround and noise canceling effects on or off, but the big deal is a button that actually sweetens sounds. The Aurvanas sport a proprietary technology, called X-Fi Xtreme Fidelity, to enhance the audio from music, movies, and games. This is essentially trademarked digital signal processing, similar to DSP effects in computer sound cards and stereo receivers. But X-Fi Xtreme is different because it’s, um, extreme to the max. Okay, it’s marketing, but the DSP actually works rather well, particularly on analog instruments: Moogs actually sounded like Moogs, rather than a synthesizer. The effect was especially noticeable on mp3s and other compressed files; less so on lossless. Of course, all that jazz doesn’t exactly come for a song.