The X3 is the heart of FiiO"s selection of high resolution digital music players, now in its 2nd generation with all new updated circuitry and exterior design. Native DSD Support All new digital audio architecture means the new X3 can now handle DSD decoding natively, giving listeners access to this highly regarded digital audio format. Of course, the X3 also supports all of the popular lossless formats in your music library, including WAV, FLAC, APE, WMA, ALAC, and AIFF. Dual Crystal Oscillators The X3 makes use of two crystal oscillators, one each for the 44.1kHz and 48kHz frequency multiples. This no-compromise design ensures the lowest jitter and highest precision for playback of music at all sample rates, eliminating all conversion artifacts. Audiophile-Grade Architecture Utilizing the Cirrus Logic CS4398 DAC coupled with our painstakingly tuned low-pass filter, the X3 realizes extremely low noise and phase distortion. The X3"s analog circuitry utilizes premium tantalum capacitors with minimal internal resistance for the best uncolored sound signature. There"s only so much that can be put into words. Take a listen and let your ears decide.