My expectation is the use of the extra current use was to extend very low bass and the phase angle is moderate. Still, I would never suggest pairing a Focal design with anything that doesn't have good impedance stability. It is likely one on of the greater causes of complaint about the speaker balance as the wrong paring will change it.
Its likely the mechanical limits as the upper driver isn't experiencing this to the same degree. Since those are lower in signal amplitude, the relative mechanical impact is increased.
Granted the efficiency gain is in a typical margin of error, but I expect Focal gave it that slight nudge as its own measurements had shown it regularly having a slight advantage. I still believe Focal was at the efficiency limit of the mid or tweeter driver instead of the bass arrangement when designing the 948.
But yes, for the most part we are in agreement with differences in talking points only.
Its likely the mechanical limits as the upper driver isn't experiencing this to the same degree. Since those are lower in signal amplitude, the relative mechanical impact is increased.
Granted the efficiency gain is in a typical margin of error, but I expect Focal gave it that slight nudge as its own measurements had shown it regularly having a slight advantage. I still believe Focal was at the efficiency limit of the mid or tweeter driver instead of the bass arrangement when designing the 948.
But yes, for the most part we are in agreement with differences in talking points only.