Astell & Kern A&ultima SP4000T Portable High-Resolution Digital Audio Player dj multi player This 10mm dynamic driver is

This 10mm dynamic driver is designed with ZiiGaat’s custom Topology diaphragm

these headphones maintain their reliability and comfort

FLEXIBILITY

6mm DLC diaphragm

Astell & Kern A&ultima SP4000T Portable High-Resolution Digital Audio Player dj multi player This 10mm dynamic driver isReimagine 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