Astell&Kern AK380 Portable Music Player

What began as a single, brilliant, high-end portable music player—one that created the category virtually singlehandedly—has morphed into a broad line of offerings. Astell&Kern wants to make its products accessible to a wide range of consumers, from high-end neophytes to grizzled, uncompromising audiophiles. Recently, the company expanded its already-broad model range in both directions. At the entry level is the new AK Jr., which brings A&K just barely into the under-$500 range. On the other end of the spectrum, the AK380 takes its place as the brand’s new flagship. The previous top dog, the AK240, remains in the lineup. The …