I think. Sometimes, too much of the sound is still trapped in the speaker.I think we're getting somewhere now, though that brings up an issue none of us can do much about - the quality of recordings.
Far too many recordings, even in the jazz and classical world, tend to be both very closely miked and multi-miked. What we hear is the results of music that is miked in a fashion that we do not hear live. Even if you sit in the middle of a live orchestra, you are close to some instruments, further from others, and you'll never get the multi-miked mixing console version at a live acoustic concert.
I find the Spendors very good about showing me what is on a recording and often, while quite engaging, it isn't very close to what one would hear live.
You might want to audition a speaker with broader dispersion to get a "bigger" sound. However, it is going to be critical that you audition them in your home since such speakers necessarily involve the room reflections to create their effect. What works wonderfully in one room may be a disaster in another.
However, I suspect that you may find you address one problem only to find that you lose some of that midrange magic that you enjoy so much now.
Good luck in your search!