I am doing some future research for a few years down the road. In order to please the Mrs. (aka: She Who Must Be Obeyed), I am most likely going to go from floorstanding to monitor speakers when we become empty nesters....as I know SWMBO is going to want us to get smaller digs.
As such, I've decided to begin a long-term search to find a monitor that I can put on a stand and move into place during listening hours (and put away when they are not in use). Going to save up so I can wait patiently for the right speakers and pounce when the price is right. Am looking for monitors that are not a huge sonic compromise despite a compact form factor. Some things I am looking for:
1. Decent low extension: doesn't have to be below 40Hz, but at least around there
2. Revealing but never shrill -- I am really sensitive aesthetically to digititis and glare
3. Fast, responsive....but most of all MUSICAL.
4. All things being equal, high efficiency is better than low....but I know that this is usually one of the compromises of monitor speakers.
5. Neutral, maybe just a tinge to the warm side
6. No overt cabinet colorations. Was just at AXPONA 2017 and the Harbeths and Audio Note speakers ring (as they were designed). Just to be sure it wasn't my hearing, I put my hand on the cabinet as they were playing and....my hearing is fine. I find that sound distracting, despite the obvious merits of these two speaker lines.
7. Nice cosmetics (to please SWMBO). You know, nothing with antlers, antennae, or massive Avantgarde horn speaker protuberances.

8. Would prefer something that didn't need a sub.
9. Would prefer something that sounded good at low volumes.
10. Would prefer something that could be used near room boundaries (side/back walls) without horrific sonic compromises.
11. Would like to stay at/around $3k, new or used. Could go higher, but may not want to unless the fit is ideal.
Am thinking that ultimately I would pair this with something like the new Pass XA25 (which is coming out as an integrated version in the fall-ish timeframe). Right now, would consider some new Fritz Carrera BEs, new/used Odyssey Kismets, used WLM Diva, used SP Tech/Aethers, etc. I am thinking that Salks are not for me -- I have heard them multiple times at shows and liked (but never loved) them.
With some of the above speakers as potential guidelines for my taste, what do folks suggest I check out? Any hidden gems that I may have missed?
Thanks in advance for your input, -dB