Astell & Kern A&ultima SP4000T Portable High-Resolution Digital Audio Player headphone mmcx alloying the Atafu to connect

alloying the Atafu to connect with more robust audio devices like amplifiers

Comfortable touch sensor control

or mute the deck

Richer details

But that power often carries unwanted noise from your source device's circuitry

Astell & Kern A&ultima SP4000T Portable High-Resolution Digital Audio Player headphone mmcx alloying the Atafu to connectReimagine Analog Sound, A&ultima SP4000T A&ultima SP4000T is the culmination of nearly two years of dedication and exploration, beginning from the planning and development stages of SP3000T. DAC, Tube, and AMP the essential elements of high end audio may be accessible to anyone. Yet even with the same elements, what is ultimately created from them is an entirely different matter. Using the canvas of SP4000, the essence of digital sound, Astell&Kern