Well, it was a step up in features, not in quality - the SVideo out had a better comb filter, the main upgrade was double sided playback, but the build quality (and price now) were considerably lower. When you crack them open and take a look at the design, the X0 is miles ahead, and you can see it in the noise levels in the picture between the two. The X0 went to insane levels to insure noise free playback, and it weighs about as much as my first car
