@unsound
Could the impedance swings of the Magico S5 explain the poor linearity - see deviation from linearity plot showing loss of SPL from the tweeter?
https://www.soundstage.com/index.php?option=com_content&view=article&id=1043:nrc-measurements-magico-s5-loudspeakers&catid=77&Itemid=153
The crossover is at 2KHz and the sensitivity would have been matched at that point to the mid range. Note the impedance is quite high at 2KHz and drops rapidly above 2KHz - perhaps the crossover design may not be ideal as the revalator tweeter resonance is much lower (500Hz).
Could the impedance swings of the Magico S5 explain the poor linearity - see deviation from linearity plot showing loss of SPL from the tweeter?
https://www.soundstage.com/index.php?option=com_content&view=article&id=1043:nrc-measurements-magico-s5-loudspeakers&catid=77&Itemid=153
The crossover is at 2KHz and the sensitivity would have been matched at that point to the mid range. Note the impedance is quite high at 2KHz and drops rapidly above 2KHz - perhaps the crossover design may not be ideal as the revalator tweeter resonance is much lower (500Hz).