Those look pretty nice. SLS makes some really nice looking stuff. Unfortunately I haven't ever gotten the opportunity to hear any of it. (that I know of) I like the S8R, although it is a bit large to be considered a desktop speaker. They seem to be a decently good deal at the $900 they appear to be going for. The $1800 for the powered versions may be less of a good deal, but I'm sure it's top notch amplification, so maybe it still is.
I'm a little curious how close something like the N2X is to that, and could Danny design a stepped up version for a little more money. Of course he may have completely different ideas about a great compact desktop speaker/reference monitor for $1k, but I'm attached to the ribbon concept a little, and I'm not sure OB would be suitable for the application, so this does seem like the general direction.
Another thing to consider is that even those would ultimately need to be accompanied by a subwoofer. 44hz is pretty good for a speaker that size, but I have to get a little lower than that to mix drum tracks. Considering the the goal of compactness in order to facilitate the dual purpose of being a high end desktop system AND good bang-for-your-buck studio monitors, it might be necessary to assume a 2.1 system from the start. All that aside, I'm curious what Danny would do with a $1k assembled price target for a compact monitor. There are some really good speakers available in that price range. It's a crowded segment, all except for the compact desktop part.