material vibration
modes (also called cone breakup) are the major reason for
reproduction errors in diaphragm based loudspeaker transducers.
Material vibration modes produce the loudest error sounds added to
the source compared to any other error modality. They are the most
audible.
material vibration
modes are chaotic phenomena. the modes are not gradual
phenomena. they manifest as a sudden and drastic change in
material behavior. they are hard to predict. they are
impossible to model or simulate with presently available (or
anticipated) modeling programs. regardless of how much effort or
expense in applied to design, spurious modes within the critical
audible spectrum will still be present in production units.
while others have tried
and failed to stop material vibration modes, we have not. mckenzie
acoustical design has made significant progress in controlling (and
sometimes even eliminating) the problem of material vibration modes
in loudspeaker diaphragms. We have built a proprietary vibratory
analysis technology to map the material vibration modes of
loudspeaker diaphragms under dynamic conditions. this new
technology allows us to determine the origin or starting point of
every material vibration mode in a transducer's diaphragm and to map
the critical areas on cone type diaphragms (and dust caps too).
we have also developed
two distinctly different techniques of controlling material
vibration modes. We have patents on implementations of both
techniques. The two implementations may be used alone or
together. Both are effective, together they achieve vibration
control for most transducer designs without adding mass. the effectiveness of vibratory analysis technology and
vibration mode control have met the most stringent
standard of science: independent verification.
the revolution in
sound reproduction has begun. No less than a whispercone is
sufficient for accurate sound reproduction. for more
information please examine the supporting documents provided on the
documents page of this web site.
