As a competitor to Bose’s popular QuietComfort 2, Creative’s new Aurvana X-Fi Noise-Canceling Headphones ($300) are the first noise-canceling headphones to feature the company’s X-Fi audio technologies. Discussed in our review of the company’s Xdock, the X-Fi Crystallizer is an intelligent equalizer that enhances the highs and lows of songs to improve their sound, while X-Fi CMSS-3D creates virtual surround sound from flat…