I auditioned the Sony AVD - C1000ES for two weeks and returned it. I now have the modded Panasonic XR45. There is no comparison between the two. While the Sony was usable, the Panasonic modded by Bolder Cable puts out music on a way higher level. Much more detail, bigger soundstage, better mids and highs, even the bass which was the area which the Sony handled best (by far) is bested by the Panasonic.