A list of efficient speakers at ~$5K a pair.

The Reference 3a mm de Capo meets those specs, and they are excellent performers.  If you’re open to used you could step up to the Taksim tower model.  Best of luck. 

Well, I agree that 91dB is not that sensitive, however coupled with a flat 80hm speaker with a rather narrow phase angle makes for a pretty efficient speaker to my thinking.

What I failed to do was describe my listening environment. Basically a dedicated room treated to my liking that has the volume of a ~12x15' roo

Why 92dB?

You’re better off choosing a speaker by how it sounds in your room rather than any spec. 

IME, most speakers with over 90dB sensitivity have significant drawbacks in other areas, such as low maximum output or very truncated bass extension. 

The Fritz speakers are a pretty easy load for most amps and your room is fairly small. 

GR Research is all you need

It's amazing that so many people, some of them supposedly audiophiles, don't grasp that speaker sensitivity is simply how loud they'll play with 1 watt of power. Also, 91-92 is considered the low end of high sensitivity. Look it up.