Apart from the sensitivity, (94-108 DB/W/M depending on model),
The smooth electrical phase angel,and steady impedance curve is a advantage
to any amplifier, and especially delicious to single ended amplifiers.
The precisely matched horns gives a emotional dynamic experience far beyond high end terms.
Bahnsen horns :
Optimized curves and expansion to guide the delicate sound waves with ease,
from the front cavity of the diaphragm and the new developed phaseguide,
all the way through the flare of the horn to the wide gentle coupling to the listening room.
Diaphragm and surround with no resonance either to hear or measure,
and with just the right amount of loading, to compensate for the minimal
mass of the special coated diaphragm.
Engineered together with its drivers, to cover, precisely the chosen frequency range,
and to have sensitivity, matching each other, (system depending).
Steep acoustic, and mild electrical crossover rate, to remain as true to the audio signal as possible
Distance to ear aligned drivers to give that here and now feeling.
The best speaker acts intensifying on transients, silence, nuance, clarity,
anything. Contrasts so much bigger, distortion so much smaller.