Technology
The cabinet technology breaks with traditional thinking -
loudspeaker enclosures of thick, heavy wood based mate-
rials. We believe a cabinet should be made of thin, light,
stiff material, with curved surfaces. The implementation of
doubly curved surfaces are necessary to increase stiffness
- tenfold compared to extruded aluminium profiles, and
hundredfold compared to flat sheet.
Our search for a thin, light, stiff enclosure is based on the
following: High frequency resonances, as found in light
and stiff structures, are much more easily absorbed. We
combine the outer 7 mm cast aluminium shell with a high
damping factor sandwich on the inside. Our damping
method is basically the same as used for aircraft.
Passengers disembark with their hearing intact despite
their proximity to one of mans loudest noise sources - the
jet engine.
To improve this method even further we pre-stress the com-
plete enclosure with rods loaded to 2500N. The sound
absorbents inside the enclosure are wedge shaped, pre-
venting reflections of sound waves reaching the rear of the
membranes.
Patents pending.
