Triangle Magellan - Manual (Page 31)

T R I A N G L E I N D U S T R I E S S . A . S - M A N U F A C T U R E E L E C T R O A C O U S T I Q U E
Avenue Flandres Dunkerque - Z.I. les Etomelles - 02200 Villeneuve Saint Germain - France - T. +33 (0)3 23 75 38 20 - F. +33 (0)3 23 75 38 21
[email protected] - www.triangle-fr.com
31
ENGLISH
The MAGELLAN’s enclosures stand out through their harmonious
and fluid lines, and were designed with the help of the best cabinetmakers
we could find.
MAGELLAN’s cabinets are finished in exquisite wood veneers,
selected for their graining. We then apply 10 layers of varnish, polished
between each layer, in order to give the enclosures their uniquely rich
and luxurious appearance.
However, a speaker enclosure is much more than just a container for
the drivers. Its design plays a major role in the quality of the sound in
the low- and mid-frequency ranges. In fact, the volume of air within
the enclosure constitutes the drivers’ acoustic load, which has to be
properly matched to their parameters in order to provide peak sound
performance. For example, the 21 cm TRIANGLE drivers used in the
MAGELLAN GRAND CONCERTseries require a working volume of 67
liters for the pair. This calculated optimal load will enable the subwoofers
to reproduce extremely low-level frequencies, down to 28 Hz, at –3 dB of
the reference level.
We decided to put our new MAGELLAN enclosures through an elaborate
series of tests to better understand how they handled various vibratory
phenomena. One result of this research was that the enclosure itself
needed to be made rigid enough to withstand the powerful vibrations
generated by the subwoofers at high volume levels. It is essential that
the drivers’ diaphragms themselves – and not the walls of the enclosures
– generate the desired frequencies, as the walls need to remain stable
and not add any unwanted coloring or distortion to the overall sound.
TRIANGLE relies on CNC machining to generate the precise theoretical
shapes required to properly construct the enclosure walls.
We took great care in rigidifying our enclosures, basing the design on
exhaustive measurements by means of laser-beam accelerometry. The
accelerometer makes it possible to highlight and model any deformation
or imperfection in the enclosure walls. We are now able to conduct tests
that isolate exactly those areas where the walls need reinforcement.
As a result we can eliminate almost all of the unwanted vibrations while
controlling the structural behavior of the enclosures themselves.
In our continued quest for perfection in the MAGELLAN line, we
joined forces with a world-renown specialist in mechanical decoupling
to develop a sophisticated system that would allow for the midrange to
be completely independent of its support baffle.
The ENCLOSURES
GENERAL DESCRIPTION