KitGuru tried the Astell & Kern AK Junior featuring Sennheiser HD650
A quote from the article:
Astell & Kern has had a place in the high-end Digital Audio Player market for years now, with its top-tier model running up a hefty £3300 price tag. However, there are those out there who enjoy quality audio products but don't want to spend thousands of pounds on equipment and for those there is the Astell & Kern AK Junior, a £399 portable player that packs in a lot of quality with a more manageable price tag.Astell & Kern AK Junior Review featuring Sennheiser HD650 @ KitGuru