Looks like you have them pretty far back to the wall. That space is not really usable anyway is it for something else. Plus they look really good like furniture. If they are what you are looking for keep them. They sound that way cause that’s what they are. Smaller speakers to save you a few inches seems not the right way to go. High efficiency speakers (the sound you like) need to be big to be full range.
Any normal size speakers that sound like Volti
I've had these early prototype Volti speakers I bought from Greg 8-10 years ago, but I am set up in the living room with these large speakers . Family and friends always complain about the size, and I just ignore them. Lately, my wife who agreed to the purchase has been grumbling about their size.
I've been considering going to a more normal sized speaker, but want to keep most of Volti horn sound. I drag in my Joseph Audio RM25xl speakers and after a few days, I drag the Volti's back in.
Using Atma-Sphere D amps and Mp3 preamp. Bricasti dac and Elrod cables. I stuck an old picture in systems so you get the idea of the scale. I will get new pictures later and finish system.
I know it's unlikely, but maybe one of you can think of something.