This speakers is huge. WAF-is almost zero
I’m not aware if you’re referring to any particular of the mentioned speakers, but yeah most of them are not necessarily what you’d call spouse-friendly :) I’d wager though there may be exceptions with speakers like the ones I’m referencing, being that horn speakers usually look very different, sometimes even sculptural compared to many of the more typical, direct radiating speakers, and so even being rather humongous at times they can find an unexpected approval among women simply for not looking like the usual square box, but instead like a piece of furniture or just.. well, intriguing. And that for being more or less unapologetically functional..
Actually this is an interesting and rather telling development from the outset of your question, where you inquired on high efficiency speakers and the best of their kin - sans proviso, certainly implicitly by not articulating any - and eventually the obstacle to overcome is: size. Perhaps a provocative takeaway from this would be for it to work as an analogy for the speaker industry at large; the outset initially was to achieve High Fidelity (the hidden issue to later materialize appears to be whether the reference to strive for is external, or one chiefly created around itself), but eventually the need for convenience and cost prevailed, and the rest, as they say, is history.
@bache Please be aware I’m not in any way at odds with your inquiry. I’m just using it to poke around ;)