@inscrutable , If the thrill is gone you bought the wrong speaker. I have done that at least 20 times. I start hearing the problems and then run into ones I can't fix. If I can't live with those problems the speaker goes.
I have been through every type of speaker you can imagine. The two most frustrating where the Magnepan Tympani IIIs and the Apogee Divas. Both speakers were at once compelling and fatally flawed. To put it in perspective I have not owned a boxed speaker since the late 70s. The last ones were Allison 1s. As I became more convinced that the single biggest problem with sound was the room you were trying to make it in I became more enamored with the acoustic advantages of line source dipoles and have not owned anything but since those Allisons. I now own Sound Labs 645-8s and the thrill will never be gone. Every time I turn them on I am in wonder. I honestly do not believe there is a better speaker for me or for anyone for that matter. It is not that they are perfect, they are not but, the problems they do have are easily overcome and the end result is you are no longer listening to the room or the loudspeaker. It is almost if they do not exist.