Astell & Kern unveils new flagship portable music player packed with hi-res streaming features and a redesigned internal circuitry

[What Hi-Fi?]

Debuting at High End Munich 2025, the A&ultima SP4000 offers enhanced circuitry and hi-res file support alongside two new pairs of in-ear headphones.

Astell & Kern unveils new flagship portable music player packed with hi-res streaming features and a redesigned internal circuitry : Read more