Tom,
Stereophile reviewed and measured the Meadowlark Shearwater speakers. 2nd page of measurements (and showing time coherence) here:
https://www.stereophile.com/content/meadowlark-hotrod-shearwater-loudspeaker-measurements-part-2I had listened to many Meadowlark speakers and had the larger Meadowlark Blue Herons in my room for quite a while. They wounded warm, airy, lush and spacious. But I never found the Meadowlark transmission bass design to be completely successful to my ear. And as I've mentioned before, the Meadowlarks didn't have the type of concentric mid/tweeter design etc like the Thiels, and suffered a sort of suck-out phase cancellation effect with vertical movement of the listener, giving the tone and imaging a sort of "shifty" quality if one moved about.
I owned small stand mounted Meadowlark monitors for quite a while and though somewhat coloured, I really enjoyed the heck out of 'em. The disappeared and imaged like the bejeesus! Sold them and still kind of miss them.