I'm still researching different phono preamp options, and have been checking out the Project offerings. I see that AA is now selling the Ultra 500 $400), but I don't see the S2 Ultra ($300) yet, and I don't think there's any difference, other than the chrome finish on the 500 - I actually prefer the looks of the non chrome. Compared to the Tube Box S2 at $400, although reviews of it seem fairly limited online. I've looked through a few threads here, but they haven't garnered many owner reviews. Are there American dealers selling the new S2 Ultra? I haven't seen any yet, I'll keep digging. But it seems like a pretty high quality preamp at this price point. Wouldn't mind trying tubes though, especially at $400. Don't want to go much beyond that price point. Any thoughts on the S2 line from Project?