Genelec Oy

Ilpo Martikainen

Jussi Väisänen

Harri Koskinen

Jaakko Nisula

Aki Mäkivirta

Markku Kulomäki

Ari Olavi Varla

Siamäk Naghian

Jari Mäkinen

Stephen Millar

Kari Pöyhönen

Juha Holm

Noa Eskelinen

Pekka Nissinen

Markku KULOMÄKI

Jussi Vaisanen

Steve Mowry

The present invention relates to a loudspeaker including an enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the center of the waveguide surface and is capable to radiate the main acoustic power of the loudspeaker to ambient volume in direction of first acoustic axis, and an additional driver attached to the enclosure. In accordance with the invention the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, and at least one port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure and at least one resonator acoustically connected to the sub volume, the resonator being tuned to at least one of unwanted resonances of the sub volume.

Directive multiway loudspeaker with a waveguide

The present invention relates to a loudspeaker including an enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the center of the waveguide surface and is capable to radiate the main acoustic power of the loudspeaker to ambient volume in direction of first acoustic axis, and an additional driver attached to the enclosure. In accordance with the invention the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, and at least one port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure.

Loudspeaker with a waveguide

Loudspeaker base

The invention relates to a method and a loudspeaker for storing equalization settings in an active loudspeaker including a loudspeaker cabinet, at least one driver connected to the cabinet and an amplifier electronics including an equalizer, in which method the loudspeaker is calibrated in controlled conditions for forming factory calibration parameters for controlling the equalizer, the factory calibration parameters controlling the equalizer are stored in the amplifier electronics. In accordance with the invention the factory calibration parameters are also stored in a memory fixedly mounted to the loudspeaker.

Method and device for storing equalization settings in active loudspeaker

Loudspeaker

The present invention provides a loudspeaker driver not suffering from high levels of distortion caused by the non-linear stiffness commonly found with drivers that utilize progressive suspension elements. The novel suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof has a geometry with two opposing first sections and two opposing second sections, which connect the two first sections. The second sections have a curvature radius smaller than that of the first sections. The mean height of the radial cross-sectional profile of the second section is higher than the height of the cross-sectional profile of the first sections. The first sections have an axial stiffness greater than the second sections.

Suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof as well as driver and loudspeaker comprising the same

The present invention provides an improved loudspeaker enclosure comprising two opposing end sections arranged at a distance from each other and enclosing sections which connect the end sections over said distance, wherein the inner volume of the enclosure is defined by said sections. The enclosure also has a reflex port which comprises a reflex opening which is provided to the enclosure and adapted to exhaust internal pressure from the inner volume to outside the enclosure. The reflex port further comprises an inner reflex port former which connects the inner volume of the enclosure to the reflex opening for forming the reflex port. The reflex port former is formed by molding as an integral inner wall section which extends inwards from the inner surface of either or both end section. On the other hand the reflex port former extends adjacent to an enclosing section which at least partially surrounds the reflex port former such that the reflex port is formed to a space between the reflex port former and the adjacent enclosing section.

Loudspeaker and manufacturing method thereof

The present invention relates to a loudspeaker including a first driver, which is configured to produce a first frequency band and a corresponding first acoustic axis, a second driver, which is configured to produce a second frequency band, which is different from the first frequency band but may overlap in a crossover region, and which second frequency band has a second acoustic axis, and an enclosure enclosing said drivers and comprising a three dimensional wave guide positioned on a front surface of the enclosure and around the first driver. In accordance with the invention the three dimensional waveguide comprises an acoustically selectively transparent portion which is acoustically essentially reflecting to sound waves of the first frequency band propagating in a direction angled to the first acoustic axis, the waveguide portion is essentially transparent to sound waves of the second frequency band propagating in the direction of the second acoustic axis through the waveguide portion, and in that the second driver is positioned inside the enclosure behind the acoustically selectively transparent portion.

Loudspeaker with a wave guide

The present invention provides a novel drive unit mounting arrangement, in which a drive unit having a chassis is mounted to a cabinet from at least two sides. The arrangement comprises a member for securing the drive unit to the cabinet from mounting points of the chassis. The arrangement further comprises a suspension member between the mounting points of the chassis and the cabinet such as to suspend the drive unit chassis elastically to the cabinet for allowing suspension in both forward and rearward directions.

Drive unit mounting arrangement and loudspeaker

A nested compound loudspeaker comprising a speaker assembly chassis (), an outer driver () connected to the speaker assembly chassis () and having an inner edge, which defines an opening in the outer driver () and forms a functional edge (), and an inner driver () connected to the speaker assembly chassis () and at least partially surrounded by the opening of the outer driver () and the inner driver () having an acoustical center axis located at a distance (r) from the functional edge () in a radial direction (&#x3b1;). The distance (r) is non-constant around the acoustical center axis, wherein the distance (r) has a first value in a first radial direction (&#x3b1;) and a second value different to the first value in a second radial direction (&#x3b1;).

Nested compound loudspeaker drive unit

The invention relates to a reflex loudspeaker construction (), which comprises a loudspeaker chamber () delimited by the reflex loudspeaker construction (), a reflex channel () connected to the loudspeaker chamber (), which connects the loudspeaker chamber () to the external space of the reflex loudspeaker construction (), and at least one loudspeaker element () connected to the reflex loudspeaker construction (), which forms part of the structure delimiting the loudspeaker chamber (). According to the invention, the reflex loudspeaker construction () comprises at least two components (), which can be repeatedly detached at least partly from each other, without dismantling, in order to use the loudspeaker chamber () as a transportation space.

Reflex loudspeaker structure

The loudspeaker construction comprises a loudspeaker chamber delimited by a loudspeaker enclosure structure, a reflex duct communicating with the loudspeaker chamber so as to connect the loudspeaker chamber to the exterior environment of the loudspeaker enclosure, and at least one loudspeaker unit mounted on the loudspeaker enclosure structure so as to form a portion of the delimiting walls of the loudspeaker chamber. According to the invention, the loudspeaker enclosure structure comprises a curved spiral structure closed from its both sides by gable elements so as to form the loudspeaker chamber, and the reflex duct is adapted at least partially running on the outer periphery of the spiral structure.

Growing community of inventors

Iisalmi, Finland

Ilpo Martikainen