[77SunsetStrip]

In several videos Danny has mentioned a balanced impedance makes a loudspeaker easier to drive.  What would be the audible or measurable effects of an unbalanced loudspeaker impedance?  For example, consider an impedance curve with low of 3 ohm, peak just over 9 ohm at 60 Hz, and peak at 2.3 KHz of 35 ohm. 

[Hobbsmeerkat]

Inductance levels are less about the peaks, and more about having an overall consistent level.

In the video posted this morning, the tweeter response was closer to 16 ohms, while the woofer was closer to 8. And having that mismatch can cause issues with phase rotation and having that much resistance in-line makes it harder to drive with certain amps, esp those only rated for 4/8ohm loads.

So by reducing inline resistance, and using a resistor in shunt, it brings down the overall impedence load the amplifier sees for that driver without raising the overall impedence.

[planet10]

Loudspeaker imedance can affect the FR if the amplifier R_out is too high, and a flat impedance curve (same as a flat phase curve) means an amplifier does not need to deliver as much excess current as a loudspeaker with wild imedance (and phase) swings.

If the speaker impedanc eis flat, then one can blithely use voltage amps or current amps or anything in between

In the real world most of the interesting amps we would like to ty are often SE with highish R_out.

dave