It includes X-Fi Crystallizer. Primary function of the Crystallizer is to "restore portions of the sound which were lost during compression". The "compression" that is meant here is not the digital file-size reduction achieved by digital audio data compression technologies like for example mp3. Rather, the idea is to reverse the effects of dynamic range compression. X-Fi Expand allows you to experience surround sound effect on your earphones. It supports Bluetooth 2. Despite its small form size, the player has[…]