I went ahead and ordered the F100's and I've had them for almost 2 weeks and have about 60 hours on them. Maybe it's my room, my just turned 50 year old ears, or my high expectations, but I'm not overly blown away. With the glowing reviews of these speakers I expected to hear the differences easily and immediately. I still lack the 72 hours break in time by 12 or so hours so possibly that could make a difference.
I have Roon/Quobuz, so high quality music. and I've listened to familiar tracks over and over and I "think" I hear some subtle improvements with the F100s. The sound is a bit fuller and the vocals are more forward, but it's not a night/day difference to my 60XTI so maybe my way of comparing them is flawed. I put them in the same spot and turn off all eq, crossovers, and the subs so it's just the speakers playing full range.
Tonight I thought I'd test a movie so I watched the John Wick nightclub scene. No EQ, told my Anthem no subs, even turned them off, so it would just be the fronts producing the bass. I have a large room and I was impressed with the bass of both the 60XTi and the F100 as I have never watched that scene with my subs off. They both sounded pretty similar even when they run into the dance club. I don't really get the chest slam because of my room size, but they both were pretty close. The only difference that really stood out, and it was very obvious, was a specific gunshot. Near the end of the scene when John Wick is shot in the bullet proof vest the first shot that hits John with the F100's there was an extra sound with the gunshot. I'm not sure exactly sure how to describe it, but it was obvious each of the 4 times I watched that part. When I played that back on the 60XTI it was just a normal gunshot sound.
I have 2 days left before my return period ends so I have a decision to make. I really like the look of the speakers and the bottom port design I was just hoping for more of a sound improvement.