Review on Sony NW-ZX507/S Walkman Hi-Res 64GB MP3 Player, Silver: Uncompromised Audio Quality and Ample Storage by David Burns

As expected, the sound quality was fantastic and the Android-based interface was smooth and responsive. A great DAP in a sleek package, this Walkman works great with both locally stored music and streaming content. The only complaint would be that the power output is low (read: VERY low). This isn't a problem for me as I'm using a high sensitivity IEM, but for those wanting to use a DAP with something a bit more rigid this might not be the right choice (unless you're using an additional external amplifier, which defeats the purpose of a nullifies universal DAP). ).