I was just thinking yesterday "Now I see why some people get into DIY."
That way you can attempt to build speakers that do the things you are looking for. If you have the talent, time and persistence (which I don’t...I have zero interest in DIY).
As for sub/monitor combos, I’m pretty much allergic to subwoofers - heard the combos in many set ups, including my own. No matter how many times I hear someone claim "it’s a seamless match" I immediately hear the sub and it annoys me. (The best blend I ever heard was actually a combo I owned: Quad ESL 63s that attached to Gradient subwoofers, specially designed to match the dipole radiation of the Quads. But that was a very room dominating system, like big, black room dividers).
It’s possible if I had enough time and resources on my hands I could end up with a subwoofer that mated well enough with some monitors, but it’s a no-go for my room. I’ve tried my best to make the technology invisible in the room (even my home theater speakers are covered in black velvet, against a black velvet screen wall). Subs would mean doubling the amount of speakers put in the room, when I’m looking to reduce (and I would not have the flexibility of placement options necessary to optimize the subs to blend them with stand mount speakers).
The problem is the Thiel 3.7s must be placed well into the room, where I like most of my speakers, for best sound and also to allow traffic into the room. The right speaker sits essentially blocking 1/2 the room entrance and if you saw a picture, you’d understand immediately why I’m trying to find a smaller speaker solution. Any inches I shave off the depth/height of the speaker helps.
I do think it’s possible smaller floor standers could satisfy me for several reasons. One is that they obviously help solve my aesthetics/ergonomics problem. Two, the 3.7s aren’t bass monsters to begin with. They are rated only down to 33Hz, yet I find this adequate to satisfy. The Joseph Perspectives, for instance, are similarly rated despite being much smaller and I found them generally satisfying in bass depth. Imaging was also terrific as well, though falling a bit short of the imaging size and precision of the Thiels.
The auditioning I had of the JM Reynaud monitors left me intrigued, but I have to say I really don’t care for their looks, especially their selection of wood finishes, so that’s a bit of a hurdle.
And on that aesthetic note: as I mentioned I have a pair of beautiful Harbeth speakers in Rosewood that I'm currently selling in another web site. I figured that the Harbeths, being smaller and more traditional looking than the Thiel 3.7s would be an easier sell for her. But she surprised me, saying she much preferred the look of the big Thiels in the room. I find she's right: the room has a contemporary decor and the more modern, sleeker lines of the Thiels actually blend in better. Hence...promise for the 2.7s.
I should have the Thiel 2.7s in house sometime after next weekend.