Wilson Electronics Alexandria XLF, Owner'S Manual

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W i l s o n A u d i o S p e c i a l t i e s
bust power handling down in the lower part of its range are beautifully met. These quali-
ties converge with a much higher resonant frequency and flatter frequency response.
The new tweeter is extremely linear. It crosses over synergistically to Wilson’s midrange
driver. It has exemplary off-axis dispersion characteristics in both the frequency and time
domains. The noise floor is lower. Because it has somewhat lower moving mass, its re-
sponse extends to beyond 33 kHz.
But most importantly, it is musically compelling. This is especially evident in its
ability to resolve low level resolution and harmonic textures effortlessly, with no audible
ringing or other distracting colorations. It is the Alexandria XLF midrange’s perfect com-
panion.
Aspherical Propagation Delay
A musical waveform is a complex overlay of frequencies, amplitudes, and phase
relationships. With current technology, no single transducer can reproduce the full range
of music at realistic sound pressure levels while maintaining consistent dispersion. The
solution is the multiple driver array, with specific drivers dedicated to various portions
of the frequency range. Multiple drivers introduce their own set of problems, however,
chief among them the challenge of preserving the precise time relationships of the musi-
cal waveform.
The key to solving this problem lies in Wilson’s innovative and patented Adjustable
Propagation Delay technology, which employs movable modules that allow the indi-
vidual adjustment of the drivers in the time domain. Using this technology, each driver’s
waveform propagation “matches up” with its neighbors’ in such a way to create the sonic
equivalent of a single point source. Certain other loudspeaker makers recognize the need
to correctly align their drivers, but they do so for only one theoretical listening position.
The fact is, misalignment of the drivers by fractions of an inch will audibly degrade
transient accuracy, soundstage height, depth, and width. Misalignment of the drivers will