Limited soundstage between speakers

tThen tune them like i described and transform them in an Helmholtz resonators or in a diffuser and you will begin to understand.

Uh, I doubt the recording engineers used Helmholtz resonators when they mixed the recording. Also, as a reviewer I got to hear many $500k+ systems in well-treated rooms, and in NONE of them did I hear 50% of the sound coming from outside the speakers unless the recording called for it, and 95% do not. If you’re hearing 50% of the sound coming from outside your speakers, you’re out of phase unless every other ultra high-end system I’ve heard is wrong. Or, maybe you just have a “magic system” that is mysteriously better than every system out there is wrong. My bet, you’ve constructed a room that radically diffuses the sound so you get width at the expense of center fill. You could get that much easier with some cheap Bose 901s. Again, you’re off on your own island and I don’t even understand you.

Half of my recorded albums at LEAST and more present sound outside of the back/front and left /right vertical plane between the speakers

+1 @newbee and @mahgister your system is wired out of phase if this is what you hear.  Frankly, I don’t understand half your posts, and the other half I just flat out disagree with.  You’re an odd duck dude. 

As others have said, placement/positioning of speakers along with the recording and how much out-of-phase information is contained on it are key almost regardless of speaker design. Most of the music in my system occurs between the speakers with lots of depth and 3D soundstage, but I’ve got an Opus 3 recording where a good amount of the music extends 6’ outside the speakers. I think Roger Waters’ Amused to Death CD also incorporates a good amount of those techniques. Bottom line — if you’re happy with what’s happening between the speakers I wouldn’t much worry about it. But, pulling the speakers out more and reducing toe-in might help, AND ITS FREE! How many things in this hobby can you say that about? Best of luck.