Dual-Force™ Technology
Cabinet vibrations are a significant source of distortion
and coloration in most monitors. The primary mechanism
that generates cabinet vibrations is simple Newtonian
action and reaction. As the driver motor (magnet and
voice coil) forces the cone to move back and forth in
order to generate sound, the cone exerts an equal and
opposite force on the motor. This force is transmitted
through the driver frame to the cabinet, vibrating the
cabinet walls and coloring the sound emitted by the
cone. This effect is most especially prevalent in the low
frequency drivers where the cone motion is greatest.
While, the LFE15 is built with a well braced cabinet,
we also tackle the problem at its source by eliminating
vibrations before they even begin. This is achieved
through our innovative force cancellation design.
08 DUAL-FORCE™ TECHNOLOGY
The low frequency drivers are mounted on opposing
sides of the cabinet and their motors are locked to-
gether. As the cones are driven in and out in opposite
directions the forces exerted on the motors cancel one
another. The vibrations never make it to the cabinet
because they are not allowed to develop in the first
place.
This layout has further benefits. Since the drivers are
locked together, the motors and frames function as a
massive internal metal cabinet bracing. And because the
wavelengths generated by the woofers are much larger
than the speaker cabinet dimensions, the drivers radiate
as if they were a single point source.
