"Speaker sensitivity is measured in decibels per 1 watt per 1 meter, but is usually referred to as just decibels [source: JBL]."
For an 8 ohm load, this equates to 2.83 volts. But for a 4 ohm load it’s 2.00 volts and for a 16 ohm load its 4.00 volts. Because the OP said the speakers have the same "sensitivity," this has been accounted for.
And yes, JBL does put more wire and turns in the gap for their higher impedience speakers leading to a high Bl.
In fact, there are cases where the higher impedience model looses travel (Xmax) because of this difference.
And seeing as how JBLs are the only make of speaker that matter in my household, I stand behind the logic that a higher impedience typically leads to a higher Bl.
As to the effects of inductance, I did note that there is interaction between the two speakers in a series set-up (goes beyond inductance) that does not exist in the parallel set-up, and for these reasons I would choose a parallel set-up.
For an 8 ohm load, this equates to 2.83 volts. But for a 4 ohm load it’s 2.00 volts and for a 16 ohm load its 4.00 volts. Because the OP said the speakers have the same "sensitivity," this has been accounted for.
And yes, JBL does put more wire and turns in the gap for their higher impedience speakers leading to a high Bl.
In fact, there are cases where the higher impedience model looses travel (Xmax) because of this difference.
And seeing as how JBLs are the only make of speaker that matter in my household, I stand behind the logic that a higher impedience typically leads to a higher Bl.
As to the effects of inductance, I did note that there is interaction between the two speakers in a series set-up (goes beyond inductance) that does not exist in the parallel set-up, and for these reasons I would choose a parallel set-up.