Bose Panaray MA12 Base technique et discussion - Page 22

Parcourez en ligne ou téléchargez le pdf Base technique et discussion pour {nom_de_la_catégorie} Bose Panaray MA12. Bose Panaray MA12 36 pages. Modular line array loudspeaker
Également pour Bose Panaray MA12 : Manuel de l'utilisateur (2 pages), Manuel d'installation (16 pages), Manuel d'installation (8 pages), Manuel d'installation (7 pages), Manuel d'entretien (11 pages)

Thus a line-shaped source has the potential to satisfy all of the major customer

requirements in ways that often overcome some of the weaknesses of the hang-and-tilt

approach. As such, a well-executed line-shaped source would not be simply an incremental

improvement to the well-worn products and techniques used in hang-and-tilt designs. It

would represent an important new tool that would significantly increase the options designers

have in many venues. The potential would exist to satisfy the basic customer requirements

and to do so in many cases at substantially less cost. Such a source would therefore represent

something more significant than an incremental advancement. The remainder of this

document is devoted to providing evidence that such an advancement has been made.

BOSE MA12™ MODULAR ARRAY

Bose MA12 array is a one-meter tall speaker module consisting of twelve closely-spaced

high-output 2.2" (6 cm) drivers operating over the frequency range from 120 Hz to 16 kHz. A

one-meter module was chosen because it is tall enough to produce the desired wedge-shaped

radiation pattern, short enough to be easily handled, and modular so that longer line sources

can easily be constructed.

In the MA12, the drivers chosen exhibit pistonic behavior up to higher frequencies than

what could be achieved with larger drivers of similar quality, a desirable feature when the

goal is to create the wedge-shaped pattern over a very wide range of frequencies.

The small driver diameter was also chosen so that the source would have very wide

horizontal dispersion. The MA12 has 160° of coverage up to very high frequencies. This is

important because when the audience is close – a definite possibility because the gentle

change in level with distance means it is not too loud close to the speaker – it tends also to be

distributed over a wide angle.

The ultra-slim profile of the MA12 , also a consequence of the driver chosen, means that the

speaker blends into almost any environment. A single array module has a surprising height-

to-width aspect ratio of 12:1. If two modules are used, this increases to 24:1. Taken together

with the fact that the speaker is available in black and white and can also be easily painted,

we believe it is fair to say that it will virtually disappear into most rooms.

Bose

MA12™ Modular Array: Technical Foundation & Discussion

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