MUSICSON DP SYSTEMS, Руководство пользователя

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1.1.2.- DP-SB ENCLOSURE
This enclosure is to be configured with the DP-H to form the DP-3 live sound
system.
For bass and sub bass frequency sound reinforcement, a folded horn enclosure
has been developed and optimised, in order to ensure high performance levels
with “kicking” basses and really deep sub basses.
Special care has been taken in the design and optimisation of the wave-
guiding parts of the enclosure, including throats, openings and lengths of
each
one. The result is a best-possible response with a minimum speaker
excursion. This way a linear response and a bandwidth, reaching from 45 Hz
to 220 Hz, have been achieved, performing an SPL of 102 dB 1W/m.
To configure a DP-3 system, two units are needed, called DP_SB1 and DP-
SB2, which are equal and use a 700 W 18” speaker each. MUSICSON engineers
have also optimised this speaker, in order to improve their response within
this type of enclosure.
On one hand, a more powerful magnetic structure is used to improve the
speaker’s dynamics, enhancing the transient response. At the same time, a 4”
(100mm)
moving coil, mounted on a Kapton® former, is used. The thermally
efficient copper is wound on both sides of the former, achieving higher heat
dissipation and structural stiffness. This allows the power application of
700W RMS (3000 W peak).
Also the height of the coil has been enlarged, in order to allow a greater
excursion. In order to improve the cooling of the coil, two cooling vents
are present, different from the conventional single cooling vent.
It includes also a front grille, covered with a sturdy filtering technical
foam to protect the speakers.