Originally Posted by TimVG
I'll just add: as someone who has actually read the blind test report from page 1, on the 228Be that Kevin Voecks posted: It actually came in close to the Salon2. From viewing the spinoramas on these speakers I would almost dare say the bass performance is probably what gives the Salon2 the edge in this case, with perhaps the fact that the 0° on-axis sound is very close to the overall listening-window, closer than on the on the 228Be.
I had puzzled about this, as well, after mentally accounting for the differences in scale which exaggerate the Salon 2 and measurement techniques which were referenced in https://www.avsforum.com/forum/89-sp...l#post57359530
, but are much more obvious in figure 12.1 in the the book), but some of the factors I came up with included:
1. The curved baffles on the Salon 2 reduce diffraction, which I wondered might at least partially explain the MUCH more similar on-axis and listening window responses for the Salon 2, as opposed to the F228Be which show more differences between 700-800 Hz and 1-10 kHz between the two response curves.
2. Both of the Olive models use smoothness and/or flatness of on-axis but NOT listening window response as dominant factors. The on-axis smoothness (narrow band or not) actually outweighs the bass extension in both models, so whether the bass or the on-axis response gives "the edge" could be a matter of contention
3. Although the F228Be initially appears smoother overall, the two significant deviations in the on-axis curves are bumps around 700-800 Hz (broader) and 5 kHz (narrower). These are of similar magnitude and width in the sound power curve, which is also a direct factor in one of the Olive models and indirectly (though the predicted in-room response) in the other. The Salon 2 bumps are generally of less magnitude in the on-axis curves, also less magnitude and/or width in the sound power curves, so one tends to smooth out compared with the other. I didn't know whether the F228Be bumps could represent some sort of resonance.
4. Dips in the on-axis or sound power curves are less audible compared with bumps.
5. The Salon 2 does have a larger dip in the sound power curve (above 2 kHz, almost reminiscent of the BBC dip but likely due to the crossover and directivity of the drivers), but the sound power curve is a significantly smaller factor in both Olive models compared with the on-axis curve, plus less audible as above in 4
6. Wider bumps or dips are more audible than narrow ones.
7. The F228Be's 700-800 Hz bump is relatively wider and higher than any of the Salon 2's, using a broader baseline, like 500 Hz-10 kHz
TL;DR The F228Be may look smoother but isn't, may not be as smooth when and where it counts, may have flaws of commission that are more audible rather than omission, and may have less bass?