Acoustic diffusion enclosure for e.g. concert-hall, has power supply unit supplying power to actuators to activate diaphragm, and frames attached to barrier and cover, where frames have fixation unit to fix enclosure

摘要

The enclosure has electromagnetic actuators (5.1 - 5.4) attached to a rectangular shaped diaphragm (2), and external barriers (3.1 - 3.5) attached to the diaphragm, where the diaphragm is made of wood such as spruce, thuja, mahogany, maple or spruce. A power supply unit supplies power to the actuators to activate the diaphragm. An external frame (7) and a square shaped internal frame (8) are attached to one barrier and a cover (12). The frames have a fixation unit (16) i.e. tom holder, to fix the enclosure. The proportions/dimensions of the enclosure relates to the number of gold. The enclosure has width of 890 millimeters, height of 890 millimeters and thickness of 4.5 millimeter.