@navyachts As mentioned, I owned both the Focus SE and Aeris. I found that smaller "full range speakers" and subs were the way to go for my room. With subs, you have better dedicated control of the bass through separate amps and are less limited to positioning the full-range speakers for bass balance. Also with the Focus, while the extra midrange is nice, the increase in the size of the drivers also increases the height of the Legacy Air Motion Transformers, which can be detrimental in sound quality for some if the tweeters are too high for their ears.
I don’t want to detract people from getting a Focus SE as it is a wonderful speaker and there are other benefits in addition to stronger bass, such as a richer midrange. But if you are already happy with the performance of the Signature SE aside from bass performance, upgrading to the Focus SE is not necessarily the answer. In my room, even with the Focus SE and Aeris, I preferred having subs due to the improved control, more even distribution of bass, and the benefits across the frequency spectrum I mentioned in an earlier post.