Astell & Kern A&ultima SP4000 Copper Limited Edition Portable High-Resolution Digital Audio Player exclude from earzfit General Features

General Features

true to its name

With MMCX 3

MC (lo) 60 dB (+/- 1 dB)

5mm TRRS analog cable (1

Astell & Kern A&ultima SP4000 Copper Limited Edition Portable High-Resolution Digital Audio Player exclude from earzfit General FeaturesLimited Edition Copper The A&ultima SP4000 Copper Limited Edition goes beyond a high end portable audio player. It represents the culmination of Astell&Kerns expertise in material engineering, precision manufacturing, and refined analog sound design. SP4000 Copper is the brands most definitive answer to a single question: how far can we go in the pursuit of the ultimate sound? Copper is theoretically one of the most ideal materials for audio, yet