Funny - I thought this was an amp thread til the last post or two.
Moving to a semi-omni-psuedo-line array approach is what did it for me.
Many components have come through upstream of my speakers, some of those being devices of absurd price points (which were not mine). No upstream component altered the sound in a way that compared to the difference in speakers that interact with the room in a fairly “massive” way.
For anyone who wants to sit down and listen to quiet piano solos, or who dislikes a very large sonic image, however, there are certainly more practical ways to go.