ASTELL&KERN Hi-Res audio player A&ultima SP4000 256GB silver P4221
Product description
The Astell&Kern A&ultima SP4000 with 256 GB of internal storage is a premium portable music player for demanding listeners. Its polished silver body is built from 904L stainless steel and weighs 450 g, combining a sturdy, refined construction with a high-end look.

At its core is the Octa DAC design, with AK4499EX and AK4191EQ converter chips that aim for clean, detailed sound. The built-in Android operating system gives access to popular streaming apps with bit-perfect playback, while an octa-core processor and 256 GB of storage leave ample room for large high-resolution music libraries. A microSD card slot allows further expansion.

The Bluetooth connection supports the LDAC and aptX HD codecs. Its CrossFeed technology creates a wider, more spacious soundstage when listening with headphones, similar to the feel of loudspeakers.











