You might consider older Audio Physic speakers. I liked them back in the 90s. I have large full range speakers that disappear, Von Schweikert, which have great dispersion. They can disappear with the right recordings (not many of my jazz combo 1950s though as they are often left/right channel only.
Mini and regular monitor size speakers are best for disappearing with great imaging potential over large speakers. Concentric driver design speakers also have the ability to disappear.