I've tried Astell & Kern's flagship portable music player – and it's a behemoth in both size and price

[What Hi-Fi?]

Astell & Kern knows how to make a portable music player, with the flagship A&ultima SP4000 looking to be its best ever.

I've tried Astell & Kern's flagship portable music player – and it's a behemoth in both size and price : Read more