Abstract: A loudspeaker includes a sound channel extending between the vibrating region of a membrane and the outer side of the loudspeaker, the central axis of the sound channel extending perpendicular to the membrane. The sound channel includes a wave front shaping portion arranged to transform the substantially flat wave front of the sound emitted from the membrane into a wave front having a cross section in the shape of a circular segment. The wave front shaping portion is divided into multiple sub-channels by divider walls that extend from an entrance opening to an exit opening of the wave front shaping portion. Seen in cross section the side walls of each sub-channel converge towards each other from the entrance opening to the exit opening. The centre line of each of the divider walls, seen in cross section, converge towards each other adjacent the exit opening.

Abstract: A loudspeaker includes a sound channel extending between the vibrating region of a membrane and the outer side of the loudspeaker, the central axis of the sound channel extending perpendicular to the membrane. The sound channel includes a wave front shaping portion arranged to transform the substantially flat wave front of the sound emitted from the membrane into a wave front having a cross section in the shape of a circular segment. The wave front shaping portion is divided into multiple sub-channels by divider walls that extend from an entrance opening to an exit opening of the wave front shaping portion. Seen in cross section the side walls of each sub-channel converge towards each other from the entrance opening to the exit opening. The centre line of each of the divider walls, seen in cross section, converge towards each other adjacent the exit opening.

Abstract: A loudspeaker array suitable for use in both a compression suspension mode and a flying suspension mode, wherein each two adjacent loudspeakers housings are coupled to each other by coupling means comprising a stationary connection frame, a pivotable connection bar and a connection member; wherein one of the connection frame and bar is provided with a fly mode pulling connection member stop and a compression mode pushing connection member stop which each are arranged to receive and block movement of the connection member in two opposite directions, one being a fly mode direction and one being a compression mode direction, such that blocking the movement of said connection member in the fly mode direction causes the back sides of the loudspeaker housings to exert a pulling force on each other while maintaining a predetermined angle and blocking the movement of said connection member in the compression mode direction causes the back side of said loudspeaker housings to exert a pushing force on each other while

Abstract: A loudspeaker comprising a housing and a membrane mounted in said housing, which membrane can be set vibrating so as to produce sound, wherein the loudspeaker has at least one sound channel which extends between the membrane and the outer side of the housing, and wherein one or more local sound barriers are provided in the sound channel, which sound barriers locally block at least 15% of the cross-sectional area of the sound channel, such that amplification of the sound pressure occurs in the audible frequency range due to resonance.

Abstract: A loudspeaker comprising a housing and a membrane mounted in said housing, which membrane can be set vibrating so as to produce sound, wherein the loudspeaker has at least one sound channel which extends between the membrane and the outer side of the housing, and wherein one or more local sound barriers are provided in the sound channel, which sound barriers locally block at least 15% of the cross-sectional area of the sound channel, such that amplification of the sound pressure occurs in the audible frequency range due to resonance.

Abstract: A loudspeaker comprising a housing provided with a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting at least part of the membrane in motion so as to produce sound, wherein a part of the conductor pattern extends beyond the plane of the aforesaid movable part of the membrane near at least one end of the membrane. Preferably, the aforesaid part of the conductor pattern makes an angle of about 90 degrees with the aforesaid movable part of the membrane.

Abstract: A coupling system (10, 110) comprising coupling means (11, 111) for coupling at least two loudspeaker housings (2, 102) together, designed to couple the loudspeaker housing (2, 102) in such a manner that the loudspeaker housings (2, 102) will extend at a predetermined angle (3, 103) relative to each other in a hoisted position, further comprising setting means (12, 112) for setting said predetermined angle (3, 103), when the loudspeaker housings (2, 112) are in a non-hoisted, stretched position, wherein the coupling system (10, 110) is further designed for coupling the loudspeaker housings (2, 102) in such a manner that said loudspeaker housings (2, 102), upon being moved from the non-hoisted position to the hoisted position, will move under the influence of gravity from the stretched position to the position in which the loudspeaker housings (2, 102) extend at said pre-determined angle (3, 103).

Abstract: A loudspeaker comprising a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane in motion so as to produce sound, the frame being provided with metallic cooling members that partially cover the conductor pattern, wherein said cooling members are mounted in a metal housing, making contact with said housing over the larger part of their surface area, or are integral with such a metal housing.

Abstract: A loudspeaker comprising a housing provided with a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting at least part of the membrane in motion so as to produce sound, wherein a part of the conductor pattern extends beyond the plane of the aforesaid movable part of the membrane near at least one end of the membrane. Preferably, the aforesaid part of the conductor pattern makes an angle of about 90 degrees with the aforesaid movable part of the membrane.

Abstract: A loudspeaker comprising a housing provided with a magnet unit that generates a magnetic field and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane in motion so as to produce sound, wherein the conductor pattern is provided on the membrane in at least two spaced-apart vibrating regions, wherein the loudspeaker is provided with at least two sound channels extending between the two vibrating regions and the outer side of the housing, and wherein the central axes of the two sound channels, which are located between the outer wall and the inner wall of each channel, incline towards each other over a particular distance from the membrane.

Abstract: A loudspeaker comprising a magnet unit that generates a magnetic field and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane vibrating to produce sound, said loudspeaker being provided with a sound opening located between the vibrating region and the outer side of the loudspeaker, which sound opening connects to a sound horn having diverging walls, characterized in that substantially identical sound openings and sound horns connecting thereto extend on both sides of the membrane.

Abstract: A loudspeaker comprising a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane in motion so as to produce sound, the frame being provided with metallic cooling members that partially cover the conductor pattern, wherein said cooling members are mounted in a metal housing, making contact with said housing over the larger part of their surface area, or are integral with such a metal housing.

Abstract: A loudspeaker comprising a housing provided with a magnet unit that generates a magnetic field and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane in motion so as to produce sound, wherein the conductor pattern is provided on the membrane in at least two spaced-apart vibrating regions, wherein the loudspeaker is provided with at least two sound channels extending between the two vibrating regions and the outer side of the housing, and wherein the central axes of the two sound channels, which are located between the outer wall and the inner wall of each channel, incline towards each other over a particular distance from the membrane.