Abstract: A coaxial speaker horn constitutes a coaxial speaker together with a tweeter and a woofer. The coaxial speaker horn includes a plurality of through holes arranged around an entire circumference of the horn.

Abstract: A mounting tool includes a female member and a male member. The female member has first and second engagement grooves that arc inclined such that a distance therebetween increases toward one side, and a female-side locking projection disposed adjacent to the first engagement groove and protruding to a side of the second engagement groove. The male member has first and second rail portions that are simultaneously fittable into the first and second engagement grooves, and a male-side locking projection disposed adjacent to the first rail portion. The male-side locking projection is disposed so as to interfere with the female-side engagement protrusion while the first and second rail portions that are being fitted into the first and second engagement grooves move in an intermediate axis direction, and so as not to interfere with the female-side locking projection while the second rail portion is being slid along the second engagement groove.

Abstract: A speaker device includes a first column speaker, a second column speaker and a speaker holder. The first column speaker has a first elongated housing and a plurality of first speaker units arranged in a row inside the first elongated housing. The second column speaker has a second elongated housing and a plurality of second speaker units arranged in a row inside the second elongated housing. The first and second speaker units have same frequency characteristics. The speaker holder connects the first and second column speakers together in parallel.

Abstract: A speaker device includes a first column speaker, a second column speaker and a speaker holder. The first column speaker has a first elongated housing and a plurality of first speaker units arranged in a row inside the first elongated housing. The second column speaker has a second elongated housing and a plurality of second speaker units arranged in a row inside the second elongated housing. The first and second speaker units have same frequency characteristics. The speaker holder connects the first and second column speakers together in parallel.

Abstract: A mounting tool includes a female member and a male member. The female member has first and second engagement grooves that arc inclined such that a distance therebetween increases toward one side, and a female-side locking projection disposed adjacent to the first engagement groove and protruding to a side of the second engagement groove. The male member has first and second rail portions that are simultaneously fittable into the first and second engagement grooves, and a male-side locking projection disposed adjacent to the first rail portion. The male-side locking projection is disposed so as to interfere with the female-side engagement protrusion while the first and second rail portions that are being fitted into the first and second engagement grooves move in an intermediate axis direction, and so as not to interfere with the female-side locking projection while the second rail portion is being slid along the second engagement groove.

Abstract: An object is to reduce weight load acting on a connecting member that connects a speaker unit and a bracket and keep the weight balance of the right and left of the speaker unit. A speaker unit mounting bracket is provided with a voltage converter, a base plate, and a cover. The cover covers the voltage converter and the base plate.

Abstract: An object is to reduce weight load acting on a connecting member that connects a speaker unit and a bracket and keep the weight balance of the right and left of the speaker unit. A speaker unit mounting bracket is provided with a voltage converter, a base plate, and a cover. The cover covers the voltage converter and the base plate.

Abstract: Disclosed is a speaker unit which includes a provisionally fastening mechanism provided on a side surface of a cabinet section for provisionally fastening the speaker unit to a mounting part with at least a portion of the cabinet section inserted in an opening section of the mounting part from a face side of the mounting part. The provisionally fastening mechanism includes an engagement section for provisionally fastening the speaker unit to the mounting part, and a retention section for retaining the engagement section. The engagement section is movable between an engagement position in which the engagement section engages with the mounting part and a cancellation position in which the engagement section cancels the engagement with the mounting part by being moved away from the mounting part, and the retention section retains the engagement section in the cancellation position.

Abstract: Disclosed is a speaker unit which includes a speaker surface provided in a bottom surface of a cabinet section and a provisionally fastening mechanism provided on a side surface of the cabinet section. The provisionally fastening mechanism includes: an engagement section for provisionally fastening the speaker unit to the mounting part; an operating section exposed on a face side of a mounting part with the speaker unit provisionally fastened via the engagement section; and a non-shielded portion formed adjacent to the outer periphery of the speaker surface for allowing the operating section to be visible from a face side of the speaker surface. The non-shielded portion is an opening or a recess formed in a flange section projecting radially outward from the outer peripheral edge of the bottom surface of the cabinet section.

Abstract: Disclosed is a speaker unit which includes a provisionally fastening mechanism provided on a side surface of a cabinet section for provisionally fastening the speaker unit to a mounting part with at least a portion of the cabinet section inserted in an opening section of the mounting part from a face side of the mounting part. The provisionally fastening mechanism includes an engagement section for provisionally fastening the speaker unit to the mounting part, and a retention section for retaining the engagement section. The engagement section is movable between an engagement position in which the engagement section engages with the mounting part and a cancellation position in which the engagement section cancels the engagement with the mounting part by being moved away from the mounting part, and the retention section retains the engagement section in the cancellation position.

Abstract: Disclosed is a speaker unit which includes a speaker surface provided in a bottom surface of a cabinet section and a provisionally fastening mechanism provided on a side surface of the cabinet section. The provisionally fastening mechanism includes: an engagement section for provisionally fastening the speaker unit to the mounting part; an operating section exposed on a face side of a mounting part with the speaker unit provisionally fastened via the engagement section; and a non-shielded portion formed adjacent to the outer periphery of the speaker surface for allowing the operating section to be visible from a face side of the speaker surface. The non-shielded portion is an opening or a recess formed in a flange section projecting radially outward from the outer peripheral edge of the bottom surface of the cabinet section.

Abstract: An audio device has an electroacoustic transducer mounted on a clamp for converting an electric signal into an acoustic signal, an electromechanical vibration transducer for converting the electric signal into a mechanical vibration, and an abutting member having the electromechanical vibration transducer therein and mounted on the clamp so that the electromechanical vibration transducer is contacted with a cervix of a user when the audio device is worn on the head of the user.

Abstract: A duct is provided in a cabinet for radiating sound pressure emitted from a speaker unit. The duct comprises a first duct and a second duct. The first duct extends in a direction perpendicular to a radiating direction of the sound pressure radiated from a front side of the speaker unit. The second duct is connected to an end of the first duct. An inner end of of the second duct is communicated with the cabinet. The speaker unit is disposed at a connection of the first and second ducts.