With a 3” voice coil, this driver is able to absorb large amounts of power.
And in a vented box of 22 – 25 liters, it plays with great authority and gives the impression of a much bigger loudspeaker. Sound pressure levels above 110dB are possible.
6 A 77 20 06 SD was used in the legendary Extrema by Sonus Faber and the first driver developed by Audiotechnology.
