Here’s what I recommend.
Pull your speakers out as far as possible into the room, and keep them at least 3’ away from the side walls. The more room you give them to breathe the better they sound.
A wide soundstage is much better than a narrow soundstage so the listening position needs to be situated relatively closer to the speakers than the distance between the two speakers. The closer you sit, the broader the soundstage. For example, my speakers are 12’ apart from each other and my
listening position is a little more than 8’ away from the speakers. At this
intersection the angle between the two speakers is about 90 degrees, which is similar to the arrangement used by recording and mixing engineers in the studio. This creates a front row center experience.
After you have sorted out the above, turn the speakers so they are on axis pointed directly at you. Then relaxed listen with your eyes closed and make
incremental adjustments to one speaker at a time. Take your time, listen carefully and be patient. You should be able to hear a difference even a very small / slight adjustment makes.
It took me 2 months to settle on what I believe is the best possible placement in my room. After much experimentation I have found that the height of the speakers in relation to the ears also makes a difference. So after much experimentation I settled on the ideal height and built my own risers that also serve as isolation platforms.
