In another thread I wrote that small studio monitors are engineered for studio use and most of the time, even if they perform flawlessy, are not that good for home use in particular if your listening point is 2/3 meters away or if you have a mid/large size room. Seems to me that it's confirmed. Benchmark FR but at 1 meter.
Doesn't apply to The Ones really. They perform exceptionally in normal listening rooms. Bigger is obviously better. You get more headroom and larger waveguide which makes sound more convincing. Even smallest model 8331A is great @ 2-3 meter distance. I have had 8351A (now using 8361A) and in normal room it's very hard to hit the limits of the speaker. 8341A plays actually louder than previous 8351. In bigger heavily acoustically treated rooms even 8361A will run out of juice eventually. Normal ears probably give up a lot earlier...