Zeppelin Wireless technical paper

Zeppelin Wireless technical paper
Zeppelin Wireless is the best one-piece audio
system available.
It retains the iconic design of the original, but
delivers dramatically improved compatibility,
enhanced functionality and quite simply the
best audio ever heard from a wireless music
A great level of understanding and discipline
of Finite Element Analysis (FAE) driven by our
core product range has opened our eyes for
improvement and allowed us to apply a new
set of rules.
Two 25mm Double dome tweeters feature a
thin aluminum dome for lightness, surrounded
by a thicker aluminum ring for rigidity. The
same tweeter technology has been used
in our award-winning CM Series of Hi-Fi
loudspeakers. The result is pure and precise
treble reproduction.
Zeppelin Wireless is Bowers & Wilkins
first wireless speaker to use our signature
“Fixed Suspension Transducer” (FST) driver
technology as found on the flagship 800
Series Diamond. FST’s innovative surroundless
suspension allows for the edge of the speaker
cone to terminate without any resonance.
These drive units deliver clean, intelligible
midrange performance.
An anti-resonance dust cap is fitted to
the voice coil bobbin, and has been tuned to
reduce the voice coil resonances. The result is
a smoother midrange response.
Zeppelin Wireless has adopted a larger 6
inch sub woofer. A large magnet system with
an ultra long-throw voice coil allows for even
the deepest bass to be played at impressive
Finite Element Analysis (FAE) has been
applied to many of the subwoofer components.
The shape and material choice for the
suspension has been modeled and designed
to ensure total linearity, and the cone has been
modeled to ensure a break up frequency way
above the operating band. The motor system
resonance has been raised to 500hz, the result
is no ringing in the audible band.
Even down to the alignment of speaker
basket chassis legs and screw hole locations,
the subwoofer has been designed to ensure
minimal vibration and coloration.
The enclosure of Zeppelin Wireless measures
as if it was a sealed box. This helps to improve
interaction with the room and give everyone a
similar listening experience no matter what your
room is like.
A small number of tiny tuned vents have been
included to help relieve internal pressure that
restricts drive unit movement. The result is
sound that is freer, with tight precisely controlled
The enclosure has been fabricated from 30
percent glass fibre reinforced ABS. The wall
thickness is 50 percent thicker than previous
generation Zeppelins; this along with optimised
bracing helps to control and reduce cabinet
resonances so the sound reproduction is free
from coloration.
Zeppelin Wireless is a fully active 2.1 design.
All five drive units are individually driven
by dedicated bespoke audiophile class D
The 4x25 Watts plus 1x50 Watts output
powers the improved drive units for increased
precision, seamless integration and impressive
levels of bass attack.
Digital Signal Processing
For many compact speakers, when played
at high volume levels, the sound becomes
unlistenable and incoherent. Zeppelin Wireless
takes a clever approach by applying propriety
Digital Signal Processing.
Zeppelin Wireless monitors and analyses the
audio signal at every sample and intelligently
optimises the system to ensure controlled bass
output and room filling sound at all listening
The DSP in Zeppelin Wireless is twice as
powerful as Zeppelin Air. This allows for a more
accurate processing.
Audiophile DAC
In the digital world, the Digital to Analogue
Converters (DACs) are vital for getting the
best from high-quality drive units. On Zeppelin
Wireless all inputs are up-sampled through
the audiophile-quality 192kHz/24bit DAC. This
has the effect of reducing noise and increasing
dynamic range, creating a more detailed,
natural sound.
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