Astell & Kern A&ultima SP4000 Portable High-Resolution Digital Audio Player audio cables and adapters Use the multi player to

Use the multi player to browse your Serato DJ Pro playlists plus the catalogs of linked streaming services

With its studio-quality audio

noise cancellation is optimized in real time-so your world stays undisturbed

a great soundstage

the M50x provides an unmatched experience for the most critical audio professionals

Astell & Kern A&ultima SP4000 Portable High-Resolution Digital Audio Player audio cables and adapters Use the multi player toSP4000 Built on Legacy, Evolving Perfection The A&ultima SP4000 is Astell&Kern's newest flagship digital audio player, the result of three years of relentless research and innovation following the development of the SP3000. As part of the A&ultima series Astell&Kern's flagship lineup combining cutting edge technology and top tier specifications the SP4000 surpasses the boundaries set by the SP3000, once regarded as the ultimate reference. Built upon