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S T E L L I A & E L E G I A W H I T E P A P E R
> Utopia
> Clear
> Elear
2
S T E L L I A & E L E G I A W H I T E P A P E R
Whether it's high-fidelity loudspeakers, like the latest generation Utopia III Evo, or breaching
new frontiers, like its grand entrance into the high-end headphones sector, Focal has continued
to push its own boundaries over the years. Its ultimate mission? Continuous innovation through
a unique approach aimed at constantly exceeding the limits of acoustics.
Elear, Clear and Utopia have made significant breakthroughs, both in terms of the measurable
performance of full-range speaker drivers and ensuring an exceptional personal listening
experience. To do this, Focal set out to deliver from headphones the deeper stirring
of emotions that one experiences when listening to the best high-fidelity loudspeakers.
These three models of open-back headphones are writing the first lines in a new adventure
for Focal: the continuous search for supreme near-field acoustics.
However, because of their very open mechanical construction, these three models require
a relatively quiet listening environment. So what happens when we want to listen to music in
potentially noisier settings? How do we make this possible without giving in to all-too-common
compromises?
In a bid to create a solution that lets you listen to your favourite songs in noisy environments
or, simply, to enjoy an intimate listening experience without disturbing the person next to you,
we created the Stellia & Elegia project. Discover how we achieved this by reading our technical
dossier and learn about the history of Stellia & Elegia, Focal’s first closed-back high-end
headphones, from the beginnings of the research, through the developmental stages,
to the birth of the product by way of a unique industrial tool.
4
S T E L L I A & E L E G I A W H I T E P A P E R
The previous technical file dedicated to Elear and Utopia allowed
us to draw parallels between the design of a pair of very high-end
loudspeakers integrated into a large and acoustically optimised room,
and a pair of headphones, bringing together all of these parameters.
Like any self-respecting music lover, we all want the best high-
fidelity system. However, we don't necessarily have the luxury of
a large enough and acoustically optimised room. A small listening
space forces us to accept a number of compromises. The first of
which being the size of the loudspeaker, closely linked to the extent
of the bass frequency response. Then, there is its positioning within a
limited area, which is always a clever compromise between integration in
the living space and acoustic performance.
Do you sacrifice reproduction of the lowest frequencies? Do you limit yourself
to listening to music at a volume you really feel is too low due to reasons of
room size or your surroundings? These were exactly the compromises we refused to accept
as established facts. For Stellia & Elegia, we needed to go beyond these limits.
The first job was to define a new generation of transducer, which is capable of operating at
a low volume level whilst maintaining exceptional dynamics, deliver an extremely extended
frequency response and reproduce the subtlest sound details. Thanks to the knowledge
acquired through the Utopia EM project, we have made significant progress in simultaneously
managing the bass level and its degree of control.
A speaker driver operating in a limited inner volume environment must first and foremost have
low compliance. Indeed, the surround on this type of transducer must permit excellent control
of the moving part and thereby induce less elongation. The surround plays a dual role.
The first is to provide the largest elongation possible, which lies at the root of the ability to
reproduce the dynamic range of the original audio signal. At the same time, it is also designed
to control the travel of the moving part to ensure a piston action from its lowest to its highest
amplitude. Focal, therefore, decided to choose a dedicated surround,
constructed in the same way as the Elear, Clear and Utopia speaker
drivers. The material used is the same, but the thickness of
the Stellia & Elegia transducer has changed to 110 microns.
The geometry of this new half-roll NBR surround was the
subject of an extremely detailed study into how to gain
optimum control of the moving part, even at the lowest
frequencies and loudest volumes.
Speaker driver design
Produktspecifikationer
| Varumärke: | Focal |
| Kategori: | Hörlurar |
| Modell: | Stellia |
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