The Apogee One is a smartly conceived, excellent-sounding solution for personal music listening and recording on both Macs and iOS devices.
The second iteration of Apogee's versatile portable audio interface adds support for iOS devices and multi-source recording. Chris Breen generally likes what he hears.
MicroBook
Xonar HDAV1.3 Deluxe
Cube Mi3
mio4
iConnectAUDIO2+
Aureon 5.1 Fun