@marco1 , I found that also true. I have never been successful in putting any speakers close to the front wall, more than 85cm
In fact, the 1/5 rule, my favorite positioning starting in my room distance the speakers 100cm from the back wall, and it can be up to 115cm.
In the end, I believe that the distances are dictated by the room’s dimensions and acoustics characteristics The Model 1 bass delivery is very very satisfying.