Catalog

The new
TNF Tweeter
Focal brand’s signature product,
the inverted dome tweeter has been
continually developed ever since it
was created. It bears repeating that
its main advantage, apart from its
very low directivity, lies in its use
of a coil of small diameter (hence
very light and better accelerating)
directly fixed to the rigid dome.
Just as with the cones of its bass
and midrange speaker drivers, what
makes Focal unique is working directly
on the sound output and, therefore,
on the mechanical characteristics
of materials. When we introduced
the pure Beryllium inverted dome
tweeter ten or so years ago, we clearly
demonstrated the decisive advantage
of this exclusive technology.
For Aria, we have brought two
major evolutions to our aluminium/
magnesium tweeter.
The suspension between the dome
and its bracket uses Poron, a
material with shape memory. This
suspension method is directly
derived from the famous Utopia
Beryllium tweeter, making it
possible to reduce distortion by a
factor of two in the 2-4 kHz range,
where the human ear has very
great sensitivity.
The inverted dome’s spatial
characteristics and very low
directivity already make it greatly
superior to the conventional
domes used by our competitors
and to further improve this a wave
guide has been developed. In a
horizontal plane, its frequency
response has a variance of +/- 0.5 dB.
This performance guarantees an
incredibly stable sound stage which
makes the listening position much
less critical.
It is due to more than twenty years’
dogged work on our manufacturing
processes that it is possible to
achieve such precision in a com-
ponent as delicate as a tweeter.
Control over production is the one
and only solution for continued
innovation when it comes to
loudspeakers...
> Distortion levels directly affect sound quality. The use of Poron has reduced the distortion by half
in the tweeter’s. Bandwidth between 2–4 kHz: an area where the sensibility of the ear is very high.
> Cross-section of the TNF tweeter. Poron’s physical properties provide improved
control over the mobile assembly in the magnetic parts.
EPDM suspension Poron suspension
10
0.1
2000
20000
Frequency
% of distortion
1