Abstract: A speaker device (100) includes a speaker unit (2) including a diaphragm (6); a windshield cover (3) covering the speaker unit and including a sound emitting unit (130) emitting a sound produced by the speaker unit; and a cabinet (5) connected to a bottom of the windshield cover, and supporting the speaker unit so as to form an angle equal to or greater than 0 degree and equal to or smaller than 90 degree between a vibration direction X of the diaphragm and the sound emitting unit.

Abstract: An object is to enhance workability in attachment in a sound generating apparatus that generates sound by vibrating a vibration plate with a vibrator while ensuring acoustic performance as good as that achieved by fastening with fine screw threads. Workability in attaching operation is improved while ensuring acoustic performance as good as that provided by fastening with fine screw threads, by providing first fixing portion that brings engagement portions into screw engagement with each other by rotation by a predetermined angle that can be attained by a user without taking his/her hand that holds a coupler off it and second fixing portion for fixing the coupler to a bracket so as to prevent the coupler from rotating relative to said bracket in a direction to loosen the engagement achieved by said first fixing portion.

Abstract: Embodiments of the present invention comprise a battery charging jobsite audio unit that is particularly useful at construction and other jobsites are disclosed which provides important desirable features and functionality comprise a housing, at least one charger for charging a removable battery pack, an audio unit that includes a speaker system for providing substantially 360° sound, as well as subwoofer, a cord and plug for connecting the unit to a source of AC power, and circuitry for selectively applying power to the audio unit and the charger. The preferred and alternative embodiments also preferably have a unique protective frame structure that is connected to the housing of the unit.

Abstract: A handheld electronic device vehicle holder is used to hold a handheld electronic device having a loudspeaker. The handheld electronic device vehicle holder includes a holding body, and the holding body has a sound guiding groove extending to the edge of the holding body. When the handheld electronic device is place on the holding body, the sound outlet of the loudspeaker of the handheld electronic device is placed in the sound guiding groove. Then, sounds produced from the handheld electronic device are guided to the edge of the holding body through the sound guiding groove.

Abstract: A speaker system includes an enclosure, a first speaker unit for low frequency and a plurality of second speaker units for high frequency. The enclosure includes a front plate portion which is a baffle plate and a rear plate portion. A length of the rear plate portion in a first direction perpendicular to a forward and backward direction is shorter than a length of the front plate portion in the first direction. The first speaker unit and the second speaker units are mounted to the front plate portion. The plurality of second speaker units are arranged in the first direction. Vibration plates of the plurality of second speaker units are located in the vicinity of the front plate portions in the forward and backward direction.

Abstract: Described herein is a serving tray having an audio player associated therewith. In a preferred embodiment, the serving tray includes an item supporting portion having a periphery, and a wall extending upwardly from at least a portion of the periphery of the item supporting portion. In other preferred embodiments, the audio player of the serving tray includes a receiver and/or memory for storing digital content.

Abstract: Described herein is a serving tray that includes a removable cartridge that houses an audio player. In a preferred embodiment, the serving tray includes an item supporting portion having a periphery, and a wall extending upwardly from at least a portion of the periphery of the item supporting portion. In other preferred embodiments, the audio player of the removable cartridge includes a receiver and/or memory for storing digital content.

Abstract: An audio system utilizes a method for detecting and adjusting a sound field effect thereof. The audio system includes a first speaker and a second speaker. The first speaker is used to emit a first sound signal, and the second speaker is used to emit a second sound signal. The method for adjusting the sound field effect includes the steps of detecting a specific position and adjusting the first speaker or the second speaker based on the specific position to focus the first sound signal and the second sound signal on the specific position.

Abstract: Microphones arranged in an array shape along a longitudinal direction are respectively formed in both the longitudinal side surfaces of a housing 2 with substantially an elongated rectangular parallelepiped shape, and speakers arranged in an array shape along the longitudinal direction are formed in a lower surface. The speaker array forms sound emission beams based on sound emission directivity set according to a conference environment. On the other hand, when the microphone array forms sound collection beams by sound collection signals collected, a talker direction is detected from these beams and an output sound signal corresponding to this direction is formed and also is reflected on setting of the sound emission directivity. Also, when there are plural input sound signals, the sound emission directivity is set according to a use situation of the plural input sound signals.

Abstract: A speaker assembly arrangement for a vehicle is provided that includes a speaker unit including a speaker cabinet defining a first volume and a body part of a vehicle including a hollow member defining a second volume. The speaker cabinet is acoustically coupled to the hollow member by a press-fit coupling having a press-fit direction and mounted on the body part by at least one fastener having a fastening direction substantially perpendicular to the press-fit direction. The body part comprises a first guide arranged and configured to slidably engage with a second guide arranged on the speaker cabinet so that force on the speaker cabinet in the fastening direction is at least in part redirected to the press-fit direction by the slidable engagement of the first guide and the second guide.

Abstract: A loud speaker group includes loud speakers which are equipped with joints on their front sides, and on their back sides, each is equipped with a mount for connectors with which the individual loud speakers can be connected to one another. For facilitating their assembly, the mount comprises two legs that are attached to the back side of the loud speaker box and enclose a channel in which the connector is displaceably movable. At its one end the mount has a row of holes for receiving a pin that extends through a hole on one end of a connector belonging to the adjacent loud speaker box and has at its other end a manually actuated spring-loaded snap-in pin. The snap-in pin is insertable through another hole disposed in front of the other end of the connector. One guide unit on each side of the snap-in pin limits the channel and are arranged perpendicular to the direction of movement of the connector and form guides for the connector.

Abstract: A sound system which has, for example, a radio, a cassette and a CD player is usually already installed in cars as standard or as an option. In addition, a better sound system includes a box system which has a tweeter and a woofer. In order to provide a speaker box which is suitable particularly for dispensing frequencies below 150 Hz and at the same time has neat pulses accompanied at the same time by little distortion, pulse dynamics and is highly effective, a sound transducer (10) is introduced into the supporting structure of the vehicle. This takes place in such a manner that subcompartments which are separated from each other adjoin each of its two membrane sides. In this case, the two subcompartments of the speaker box are formed by at least two elements (2, 3, 4) of the supporting structure of the vehicle (1).

Abstract: A speaker system has a laterally extending body portion for supporting the back of the head of a user and a pair of right and left side portions respectively connected to the right and left ends of the body portion. A plurality of openings in side wall of each of two speaker boxes for making communication between the inside and the outside of each speaker box, for preventing sound leakage from each speaker unit and ensuring the sound pressure level in a low-frequency range of the audio frequencies reproducible by the speaker unit.

Abstract: An audio system includes mounting one or more speakers on the surface between an exterior side panel and an interior side panel of a door on a vehicle. The one or more speakers may face substantially along an axis in the longitudinal direction of the door. When the door is open, a cover may be controlled to extend over and close an opening in the interior side panel, thereby allowing sound from the one or more speakers to project to an exterior of the vehicle. When the door is closed, the cover may be controlled to expose the opening, thereby allowing sound from the one or more speakers to enter an interior of the vehicle through the opening.

Abstract: A portable system for an outdoor umbrella includes a portable housing, a detachable locker, and an audio device. The portable housing includes a first housing body and a second housing body defining a mounting slot for a shaft of the outdoor umbrella fitting therewithin. The detachable locker includes a first locker provided at the first housing body and a second locker which is provided at the second housing body and is releasably locked with the first locker so as to detachably lock up the second housing body with the first housing body. The audio device includes a speaker supported in the first housing body and an audio input operatively coupling with the speaker such that when the audio input sends an audio signal to the speaker, the speaker is adapted for producing audio sound as an additional function for the outdoor umbrella.

Abstract: In various embodiments, a speakerphone may comprise multiple (e.g., 16) microphones placed in a circular array around a central speaker. The microphones may be mounted vertically in the speakerphone with their respective diaphragms substantially parallel to the top surface of the speakerphone. The centrally mounted speaker may be coupled to a stiff internal speaker enclosure. The speaker enclosure may be made of a stiff, heavy material (e.g., a dense plastic) to prevent the speaker vibrations from excessively vibrating the speakerphone enclosure (which may affect the microphones). The speaker enclosure may also include a raised rim and ridges to increase its stiffness.

Abstract: Disclosed is a fit adjuster for a neckband type headset, which includes a headset band and a pair of earpieces connected to both ends of the headset band and placed on the ears of a user. The fit adjuster includes at least one opening formed at a stress concentration portion of the headset band; and an adjustment pin inserted into the opening to be movable in a longitudinal direction of the opening.

Abstract: A mobile device comprises a housing including a bottom section and a top section slidably connected to the bottom section so as to be movable relative to the bottom section between closed and open positions. A speaker disposed within the bottom section of the housing. An acoustic port extends from the speaker in the bottom section of the housing and through the top section of the housing to project sound produced by the speaker toward the front of the mobile device.

Abstract: A ported electroacoustical device uses the action of the port to provide cooling airflow across a heat producing device. The device includes a loudspeaker enclosure including a first acoustic port, and an acoustic driver, mounted in the loudspeaker enclosure. The device also includes a heat producing device. The acoustic driver and the acoustic port are constructed and arranged to coact to provide a cooling, substantially unidirectional airflow across the heat producing device, thereby transferring heat from the heat producing device.

Abstract: A door leaf includes a stiff, light structural part that maintains fed-in vibrational energy and, by flexural waves, propagates this energy in at least one active surface perpendicular to its thickness to distribute resonance mode vibration components over at least one surface, which has specified, preferred locations or sites within it for transducer devices, which are affixed on the structural part at one of the locations or sites to set the structural part into vibration and to allow it to resonate, thus creating an acoustic radiator that delivers an acoustic output signal when it vibrates in resonance, the front and/or the rear cover panel of the door leaf being part of the stiff, light structural component. The transducer(s) is/are situated between the cover panels.

Abstract: The present disclosure relates to a bracket, particularly to a universal style bracket for mounting a speaker to a television or monitor panel.

Abstract: A combined power and audio dock for a handheld electronic device provides an integrated solution to the multiple uses of multifunction devices such as mobile telephones with built-in music players. The dock is configured with a recess into which the handheld device is docked so that all four exterior edges of the device are surrounded by the dock. This enables the dock to engage with any controls, jacks and ports along any edge of the device, and includes loudspeakers that can amplify the audio output of the device. The device is docked in an intentional assembly sequence that enables power and audio connectors to engage corresponding jacks on common, adjacent or opposing edges of the handheld device. Removal is accomplished in a reverse sequence.

Abstract: Loudspeaker apparatus comprise commonly some sort of casings or assemblies, in which one or more single speakers are integrated and which are used to convert electrical signals into sound. A loudspeaker apparatus 1 for radiating sound in a hemisphere is disclosed having a center axis 9, the loudspeaker apparatus 1 comprising: a set of midrange drivers 6a, b, c, d, e, f, whereby the midrange drivers 6a, b, c, d, e, f are controlled and/or arranged in a Bessel configuration and are operable to provide a first acoustic field in the hemisphere, a set of tweeter drivers 7a, b, c, d adapted to provide a second acoustic field in the hemisphere, whereby the first and the second acoustic field are respectively arranged symmetrically, whereby the main sound emitting directions of the single tweeter drivers 7a, b, c, d are angled to the center axis 9.

Abstract: An electromagnetic transducer is disclosed. The electromagnetic transducer includes a holder forming a hollow space, a suspension mounted on the holder, a vibrating member suspended in the hollow space by the suspension, a diaphragm arranged facing the vibrating member. The outlines of the diaphragm, the vibrating member and the suspension are the same. The electromagnetic transducer provides sound producing and vibration functions.

Abstract: An integrated seat speaker includes a cushion, a seat frame defining a first internal air volume, and a speaker enclosure defining a second internal air volume. The second internal air volume is acoustically coupled to the first internal air volume through an air passageway, thus producing a continuous acoustical air volume. An acoustic sealing member is disposed between the enclosure and the frame. The frame includes a closure feature at one end for isolating a portion of the first internal air volume. The cushion includes an outer surface, and the speaker enclosure is enclosed within the seat cushion and at least partially concealed by the outer surface. A method optimizes the acoustical performance of a speaker assembly by acoustically coupling an internal air volume defined by a speaker enclosure to another internal air volume defined by a seat frame to create a continuous acoustical air volume.

Abstract: A door speaker box includes an enclosure member and speaker operatively attached thereto, such that they define an acoustic volume, into which the speaker communicates. The enclosure member and speaker are configured to be installed as a speaker box unit in the vehicle door, such that speaker box unit seals the door against moisture passage into the vehicle interior. A flange integrally formed in the enclosure member extends substantially around a portion thereof and is configured to seal against such moisture passage. A hardware mounting surface may be integrally formed in the enclosure member, and configured to receive and support a door hardware component. The flange may further define and enclose the acoustic volume, and may be configured to seal multiple access holes in the inner panel, such that the door is characterized by an absence of rain paper or other dedicated water barrier.

Abstract: A rapid installation and detachment device for flush mounting speaker on ceiling or wall is composed of a hinge bracket, coil springs, gaiters, press fits, cushion springs and stop blocks. The above mechanisms are driven by the coil springs to rapidly and efficiently install a speaker on the hinge bracket. The detachment of the speaker never damages the surrounding surface material of the ceiling or wall. The device is applicable to all kinds of surface materials with different thickness.

Abstract: A wireless earphone with an indicating light includes a cover, a hanger connected to the cover, a housing, a microphone, an indicating light and a PCB. An outer hole is opened in the cover. The housing is accepted in the cover. An inner hole is opened in the housing and corresponding to the outer hole. The microphone and the indicating light are arranged in the housing and connect to the PCB, the indicating light protrudes into the inner hole. An escutcheon is arranged between the outer hole and the inner hole to resist dust into the inner hole. The light from the indicating light is delivered via the inner hole and the outer hole to the outside.

Abstract: A speaker system utilizes input from a transducer that receives an acoustical signal produced by a speaker that is separate from the speaker system. The acoustical signal is amplified and drives a speaker of the speaker system. The speaker system is thereby provided with the necessary electrical audio signal without the speaker system being wired into any existing sound system wiring. In automobiles, the transducer is in proximity to a speaker wired into the automobile's audio system, and the transducer obtains the acoustical signal to produce the electrical audio signal used by the speaker of the speaker system so that no access to high or low level electrical audio signals of the audio system of the automobile is necessary. Additionally, the speaker system may employ a power socket plug that is electrically coupled to the power input of the amplifier and that may be plugged into a power socket such as those typical of most vehicles to provide electrical power to the amplifier of the speaker system.

Abstract: A speaker housing assembly including an adapter and a speaker enclosure is disclosed. The adapter has an escutcheon and a partially spherical recessed concave portion. The speaker enclosure has a partially spherical sidewall that is received in the recessed concave portion of the adapter. A lock assembly secures the speaker enclosure to the adapter through an arcuate slot. Flanges of the lock assembly are placed in registry with teeth formed on opposite sides of the arcuate slot to lock the speaker enclosure in place. An elastomeric pad is provided between the recessed concave portion and the partially spherical sidewall to dampen vibrations and supplement the locking engagement of the lock assembly.

Abstract: A display cover to housing interface system includes a display screen fronted by a display cover having front and obverse faces and a distal edge between the faces around a circumference thereof (i.e., edge thickness), and also an outer housing that provides support for the display cover. A portion of the display cover distal edge or thickness is fully exposed to outside, such that the display cover is exposed and substantially visible when viewed directly from the front and at least one side while installed. The display cover can be glass, while the housing is metal. A protective layer located between the housing and display cover protects the display cover from the housing. Various support components hold the display cover in place, and can include magnets and/or a stabilizer assembly affixed along a bottom edge of the display cover and adapted to couple to a bottom chin of the housing.

Abstract: A method for automatically switching an incoming call signal output mode in a mobile communication terminal is disclosed. The method comprises the steps of determining whether or not a present incoming call signal output mode is a vibration mode when receiving incoming call, driving a vibrator to output vibration if it is determined that the present incoming call signal output mode is set to the vibration mode, detecting an intensity of actual vibration of the terminal via a vibration detection sensor when the vibration is output, followed by calculating transfer energy using the intensity of the actual vibration on the terminal, and automatically switching the incoming call signal output mode from the vibration mode to a ringtone mode according to comparison of the calculated transfer energy with a reference value. With the method, a user can easily recognize the incoming call signal.

Abstract: A system and methods for implementing substantially triangular or trapezoidal speaker enclosures and related components. A speaker enclosure may be shaped substantially as an equilateral triangle, loaded with three speakers mounted radially equidistant from the planar center of the triangular enclosure. The speaker enclosure may comprise a triangular port with a detachable lid. A speaker enclosure also may be shaped substantially as a box with an interior triangular subchamber. The speaker enclosures may further include an amplifier system having a novel input gain stage or a novel tone stack, or both. An amplifer system also may comprise parallel audio input processing through input gain modules and tone stack modules, with the separate audio signals summed by a novel mixdown module.

Abstract: A light socket mounted radio receiver speaker device having a light bulb screw base for attaching to a light socket. A detector having a detector signal input, a first electrical output and a control output is electrically connected to the light bulb screw base. A radio receiver is controlled by the control output of the detector, having a radio frequency input and an audio signal output, whereby said radio receiver converts a radio signal into an audio signal. A speaker is connected to the audio signal output of the radio receiver, whereby said audio signal may be propagated. A light bulb socket is in electrical connection with the first electrical output of the detector.

Abstract: An apparatus includes a support unit for a handheld media device. The support unit has a first surface and a second surface. The first surface is coupleable to a substantially planar object. The substantially planar object is configured for mounting in a vertical position. The second surface is sized to support the handheld media device when the handheld media device is placed thereon.

Abstract: According to one embodiment, a front frame forms a cabinet, and a display screen of an image display unit is arranged to be exposed from an opening at the center thereof. A frame forming portion is located at the lower part of the front frame, and sound emitting units which open elongatedly in a longitudinal direction of the frame forming portion are formed. A cabinet surface is formed continuously to the bottom side of the opening and is tilted and retreated while being bent in a direction of the back face of the front frame as it goes downwards.

Abstract: A method of providing an audio signal to a headphone apparatus for a user is disclosed. The method comprises providing a headphone apparatus comprising at least one left speaker for a left ear of a user having a sound path from the left speaker to the left ear canal and at least one right speaker for a right ear of the user having a sound path from the right speaker to the right ear canal, wherein the sound path of the left speaker has a different length from the sound path of the right speaker. The method further comprises sending an audio signal simultaneously to the left speaker and right speaker thereby creating a timing difference in the time the signal is received by each ear canal based on the difference is the length of the sound path.

Abstract: An audio amplifier and speaker system are stacked and magnetically coupled together. The audio amplifier is coupled for receiving an audio signal. A first securing assembly is provided on a bottom surface of the amplifier. The first securing assembly may be a foot formed on the bottom surface of the audio amplifier. The speaker is electrically coupled to the amplifier. A second securing assembly is provided on a top surface of the speaker. The second securing assembly may be a receptacle formed in top surface of the speaker. The foot is inserted into the receptacle. The foot and receptacle are magnetically coupled to attach the amplifier to the speaker. The foot has a first electrical connector, and the receptacle has a second electrical connector mated to the first electrical connector to route the audio signal from the amplifier to the speaker.

Abstract: A flat panel display with detachable anti-vibrate speaker includes a speaker body with a front bezel attached at least one speaker driver, a rear bezel and a middle frame. The middle frame with a bottom positioning hole is made of an elastic material and situated between the front bezel and the rear bezel, and an elastic rib is formed on an inner surface of the middle frame to separate and to be against the front bezel and the rear bezel. A stand includes a positioning structure and a top surface groove. The positioning structure is assembled inside the top surface groove and is blocked by a blocking member fixed on an upper surface of the top surface groove. An elastic member is situated in the bottom of the top surface groove and a positioning member with a round top is located between the blocking member and the elastic member and is pushed to fit the positioning hole by the elastic member.

Abstract: The present invention is directed to a support fixture suitable for mounting on an underlying support structure such as a speaker box, and consists of a support platform having a fixed depending wall along one side edge thereof, and a bracket supporting a moveable wall opposed to the fixed wall. The top surface of the support platform is provided with a bridge having a slot formed thereunder, and an upstanding tube spaced from the bridge mounted thereon. The base of the upstanding support tube has opposed slots which are in horizontal registry with the slot in the bridge. A rod is provided which moves under the bridge slot and the opposed upstanding tube slot, a rod provided with a moveable wall. The support fixture is mounted upon and underlying support structure such as a speaker box by interposing a speaker box between a fixed depending wall, and the moveable support plate, and locked into position by lock means.

Abstract: An in-vehicle electronic apparatus, to which a portable navigation apparatus is attachable, and which can output audio information to multiple audio outputting portions, and the in-vehicle electronic apparatus includes a receiver receiving as audio information, first audio information being navigation audio information output by the portable navigation apparatus and second audio information through the portable navigation apparatus, and an audio selector outputting the first audio information to at least one of the multiple audio outputting portions, when the audio information is the first audio information, and outputting the second audio information to the multiple audio outputting portions, when the audio information is the second audio information.

Abstract: In a medical device that measures a condition of a living body, a recess is formed on the exterior (first and second surfaces) of its casing. An attachment member is attached to the inside of the recess. In the case where a display screen that displays a measurement result is provided on the casing, it is preferable that the first and second surfaces are adjacent to a third surface on which the display screen is provided. Preferably, the attachment member includes an adhesive material layer, a print layer, and an anti-slip layer that is formed of at least one of a resin material and a rubber material, and the adhesive material layer, the print layer, and the anti-slip layer are stacked in sequence.

Abstract: There is provided a loudspeaker unit, in particular a ceiling loudspeaker unit, which has a housing (50) having a front housing portion (60). Arranged in the front housing portion (60) are a woofer unit (10), a baffle panel (70) and a tweeter unit (30) in a 2-way coaxial system. The tweeter unit (30) has a tweeter horn having a plurality of legs (33) and a plurality of openings (31) at the edge of the tweeter horn (30).

Abstract: A side frame for a loudspeaker rigging system has a frame structure mountable to the side of a loudspeaker, and links associated with the frame structure for linking together the corners of the frame structures of vertically adjacent side frames. The links associated with each side frame structure include a pivot link and splay adjustment link, each of which has a top extended end and a base end. Stow channels, which are preferably located in the bottom corner regions of the frame structure, contain the pivot link and splay adjustment link in the frame structure. A gripping structure associated with at least one, and preferably each link of the pivot and splay adjustment links allows a user to easily maneuver a link from its stowed to its deployed position.

Abstract: An electrically angle-adjustable speaker includes a seat unit, a rotation unit and a speaker unit. A hole is provided at the central portion of the seat unit and a horizontal-rotation driving mechanism is provided by the hole. An arcuate toothed track is provided on the rotation unit, and a limiting track is provided below the track. A hole is provided at the central portion of the rotation unit. A vertical-rotation driving mechanism and a first limiting device are provided in the front portion of the hole. Two pivot bearings are provided in the rear portion of the hole. A toothed track and a positioning track are provided on the arcuate upper surface of the speaker unit. After the aforesaid components are put together, the electrically angle-adjustable speaker of the present invention is formed.

Abstract: Embodiments of a speaker assembly and cooperating suspension ring designed to allow installation of the assembly in a horizontal ceiling tile from below are disclosed. The speaker assembly includes a body or housing with a flange at one end. The body has a diameter that allows it to fit through a hole the ceiling tile and the suspension ring. The assembly is further provided with clamps attached to the flange next to the body. In order to bring the flange into contact with the ceiling tile, the assembly must be aligned so that the clamps penetrate cooperating voids in the suspension ring. The assembly is then rotated in a direction depending on the tile thickness and lowered into a position where the clamps engage with projections on the suspension ring so that the suspension ring supports the weight of the assembly.

Abstract: A platform for attachment to a sound system and wirelessly sending control signals to the sound system, is constructed and arranged to support said sound system, and has a plurality of control buttons exposed outside the sound system when said sound system is attached to the platform. The platform has a wireless transmitter constructed and arranged to illuminate a sensor of the sound system constructed and arranged to receive wireless control signals from a remote control associated with the sound system. The platform has a signal processor intercoupling the wireless transmitter and the control buttons constructed and arranged to respond to actuation of a control button for producing an emission from the wireless transmitter for activating a corresponding control function in the sound system.

Abstract: A speaker support system is adapted for use in a suspended ceiling with grid openings and ceiling panels. The system has a speaker support base capable of supporting at least one speaker within a ceiling opening without interfering with the operation of the speaker. A guide flange is integral to the speaker support base and is adapted to align at least a portion of a ceiling tile within the grid opening. A support flange having an offset at each end is integral to the system, connected to the guide flange, and supports at least a portion of the ceiling tile within the ceiling grid opening so that the opening is filled with the speaker support base and the remaining portion of the opening is filled with ceiling tile. The base and guide flange are formed from a single piece of material, which is perforated substantially to at least some of the edges thereof.

Abstract: A side frame for a loudspeaker rigging system has a frame structure mountable to the side of a loudspeaker, and links associated with the frame structure for linking together the corners of the frame structures of vertically adjacent side frames. The links associated with each side frame structure include a pivot link and splay adjustment link, each of which has a top extended end and a base end with a seating edge. Guide channels, which are located in the top corner regions of the frame structure to receive the base ends of a pivot link and splay adjustment link associated with a vertically adjacent side frame, have seating surfaces that conform to the seating edges at the base ends of the pivot and splay adjustment link. When base ends of these links seat in the guide channels, pin holes in the base end of the links self-align with pin holes in the corners of the frame structure for easy insertion locking pins.

Abstract: A sound reproduction unit comprises a central, head receiving portion and opposite first and second ends. The first and second ends have opposed front and back surfaces. A first acoustic transducer is mounted within the first end and a second acoustic transducer is mounted within the second end. First, second, third and fourth acoustically substantially transparent pathways are provided between the first transducer and the front surface of the first end, the first transducer and the back surface of the first end, the second transducer and the front surface of the second end, and between the second transducer and the back surface of the second end, respectively.