Coastal Source, LLC

Bohlender Graebener Corporation

Bg Corporation

Igor Levitsky

Sean Patrick Snowden

Franco L D'Ascanio

Harold M Zimmermann

Franco C D'Ascanio

Modular speaker system

Speaker

An elliptically shaped speaker has a driver assembly which may include a woofer driver and a tweeter driver. The speaker has a uniquely designed bridge member. The bridge member acts both as a structural element and waveguide for the tweeter. It has a specific elongated, elliptical shape that allows the speaker to be inserted into a corresponding cut-out opening in a wall, ceiling or any other structural panel, then rotated behind the panel and re-inserted from behind into the opening, thereby providing a secure seal and exact positioning within the panel. The resulting system allows for a low frequency speaker to be installed behind the panel with a noticeably smaller opening than the total size of the speaker.

Speaker mounting system and method of mounting within a panel

Wedge speaker

A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another aspect of the driver includes a corrugated region along the periphery of the diaphragm, which provides increased internal dampening.

Planar speaker driver

A biplane line array speaker includes a line array of tweeters mounted substantially directly in front of a line array of woofers. The tweeter line array is arcuately shaped to provide controlled vertical dispersion above and below the boundaries of the speaker cabinet. The woofers are displaced from the tweeters in stepped manner. The speaker cabinet is a rectangular box, allowing efficient wall mounting in single or multiple unit columns. In multiple unit columns, the individual units acoustically couple to each other.

Biplane line array speaker with arcuate tweeter array providing controlled directivity

A panel transducer includes a diaphragm with areas of multiple electrical conductors, two rows of magnetic bars, two metal plates and a clamping frame. The diaphragm is clamped in the clamping frame and is positioned between the two rows of magnetic bars. Each row of magnetic plates is in close proximity to the clamped diaphragm. Each metal plate has holes. The holes correspond to spacing areas between the magnetic bars and acoustically connect the diaphragm to outside media. The magnetic bars are sequentially located on the metal plates with spacing between the magnetic bars. The diaphragm is secured to the clamping frame and has an active surface area under tension spaced inwardly of the clamping frame. There are no side magnetic bars at the ends of each of the row. Absorbing strips are used in place of the absent magnetic bars filling the space between the side magnetic bars and the clamping frame.

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Toronto, Canada

Igor Levitsky