Abstract: Power amplifies are provided to correspond with a plurality of speaker units constituting a speaker array. Driving signals from the power amplifies are supplied to one terminals of the speaker units, and other terminals are connected a common line. Inverters are provided at preceding stages of the power amplifies such that the driving signals supplied to the speaker units being arranged adjacently have an opposite phase respectively. Since a correlation between the driving signals of the adjacent speaker units is high, a current flowing through the common line can be very reduced. An LED display panel can be driven by the similar method.

Abstract: A sound reproducing screen for an ultrasonic converting and reproducing method wherein a sound signal is carried on the ultrasonic wave which is transmitted via the screen which has a lattice structure in which a plurality of cells is continuously arranged. Using the screen, the sound signal can be divided from the ultrasonic wave, so that the sound signal can be reproduced. A cell structure of the screen is thus provided for converting the ultrasonic wave into the sound signal by ultrasonic conversion and reproduction which is simple to make and which has a maximum conversion efficiency. Accordingly, an efficiency of reproducing the sound source in a low frequency band as well as a high frequency band is superior, and a realistic three-dimensional sound system can be implemented.

Abstract: A flexible multiple speaker support apparatus is provided for supporting a plurality of speakers therein and includes a flexible, hollow speaker support unit which includes a plurality of open, sound emission channels. The speakers are housed within the flexible, hollow speaker support unit, and the speakers are placed in registration with the open, sound emission channels. With one embodiment of the invention, the flexible, hollow speaker support unit includes a flexible, tubular speaker support member, and the flexible, tubular speaker support member includes a plurality of the open, sound emission channels. The speakers are placed in registration with the open, sound emission channels. With another embodiment of the invention, a suspension bracket assembly is connected to the flexible, hollow speaker support unit for supporting the flexible, hollow speaker support unit in a desired orientation from a ceiling, wall or other surface.

Abstract: A speaker device for a mobile terminal enlarges resonance space of a speaker while decreasing a size of the mobile terminal. The speaker device for a mobile terminal includes at least one speaker installed within a main body of the mobile terminal and a speaker bracket installed at one surface of an electronic circuit board mounted within the main body. In addition, the speaker bracket fixes the at least one speaker in place and has housing space to enclose the at least one speaker therein. At least one resonance groove is formed in a portion enclosed by the speaker bracket in one surface of the electronic circuit board. Because resonance space can be enlarged without increasing a size of the speaker bracket, an entire thickness of the mobile terminal can be reduced and thus a size and thickness of the mobile terminal can be decreased.

Abstract: A wireless speaker may include a housing comprising a networking module configured to receive a signal from an audio source, a power amplifier configured to amplify the signal, and at least one speaker configured to translate the electrical signal into an acoustic wave. The wireless speaker may also include at least one electrical connector configured to be electrically and mechanically coupled to a power source, such as an AC outlet. The electrical connector may be configured to orientate the wireless speaker in various positions relative to wall and may be configured to allow the wireless speaker to pivot or rotate relative to the wall. The wireless speaker may also include at least one light source configured to illuminate at least a portion of the speaker membrane.

Abstract: A middle to high frequency straight pathway horn with wide horizontal dispersion characteristics having extended terminus side walls which approach a perpendicular angle compared to the horn axis which are further extended by a rearwardly divergent angled or curved surface from the terminus frontal plane to reduce the deleterious effects of horn mouth, edge, and baffle diffraction, allowing for traditional front baffle mounting or free-standing use. Modular baffle elements allow the invention to be configured for the further reduction of diffraction effects in a variety of applications.

Abstract: A speaker apparatus includes a speaker unit arranged to output sound to the exterior of the speaker apparatus via an opening; an enclosure containing the speaker unit; and a protection units, supported by the enclosure, for protecting the speaker unit, wherein the protection units includes a protection member for at least partially covering the opening, and wherein the apparatus comprises moving unit for changing the distance between the enclosure and the protection units and wherein the protection units is configured such that the position of the protection member changes with respect to the opening in accordance with a change in the distance between the enclosure and the protection units.

Abstract: In reverberant environments, reflected waves including an echoic sound and a muffled sound affect and disable recognition of sound arrival directions. As a result, the subjective clearness of the sounds deteriorates. In order to enhance the clearness of a reproduced sound in a reverberant environment, a pre-processing filter unit corrects an input sound signal portion having a frequency band relating to human auditory recognition on a sound wave arrival direction, and speakers reproduce the sound signal. The correction involves attenuating an input sound signal in the frequency band portion, based on the relationship between the frequencies of the input sound signal and the magnitude of influence to the recognition of the sound wave arrival direction. This attenuation is achieved by filtering using filter coefficients that are set by a first filter characteristic setting unit using hearing characteristic parameters that are set by a hearing characteristic setting unit.

Abstract: The present invention discloses a sound converter with an enclosure which utilizes an outer space to expand a resonance space. The sound converter with the enclosure includes a frame being equipped with a magnetic circuit for forming a magnetic field in a predetermined gap, a voice coil at least partially positioned in the gap, a diaphragm adhered to the voice coil and inserted into a diaphragm seating portion of the frame, a protector formed at the upper portion of the diaphragm, and an enclosure case coupled to the frame, for defining the inner space of the enclosure which is the resonance space. A vent is provided at the enclosure case so that the inner space of the enclosure can communicate with the outer space. This configuration can secure a wide resonance space.

Abstract: A device for housing a sound-emitting transducer including a housing and a cap. The housing has a chamber defined by a cylindrical sidewall and an endwall with apertures. The cap mounts to the housing, and has apertures that can register with the apertures in the endwall. A groove is formed between the cap and teeth formed at its circular outer periphery. The cap's circular lip is inserted into the groove by deforming the cap slightly. Thus, relative movement is permitted between the cap and housing for registering and de-registering the apertures on the cap and housing. This controls the volume of the sound-emitting transducer.

Abstract: In one aspect, the present invention is directed to a system for rendering audio animation, the system comprising: two or more non-biotic figures; an audio player, having two or more audio sources correspondingly to the two or more non-biotic figures, for simultaneously playing the audio signals associated with the two or more non-biotic figures; and two or more speaker units corresponding to the two or more audio sources. The system may further comprise means for wireless transmission of the audio signal of at least one of the audio sources to a remote speaker unit thereof. The means for wireless transmission may comprise a wireless transmission unit deployed at the audio player, and a wireless receiving unit deployed at the speaker unit. The non-biotic figure may be a two-dimensional, three-dimensional figure, and so on.

Abstract: A multi-directional flat speaker device is disclosed. By the directional characteristics of a plurality of flat speakers of the flat speaker device, accompanying with mechanism to actuate each of the plurality of flat speakers independently rotating to its desired direction, a composite sound field is generated as desired accordingly. The design makes the applications of the flat speaker device more suitable to meet the requirement of future utilizations. The mechanism to actuate the plurality of flat speakers can be achieved by controlling one or more of the flat speakers to rotate in a unique manner. The mechanism can control a facing angle of any one of the plurality of flat speakers independently. The mechanism can be designed by mechanical or electrical controlling manner.

Abstract: A portable terminal with a speaker device includes a body housing, and a speaker module provided in the body housing and slidably retracted or extracted into/from the body housing. The speaker module includes a speaker housing slidably settled in the body housing, guide rails provided in the body housing, for sliding the speaker housing, at least one guide protrusion provided on the speaker housing and slidably engaged with the guide rails, and a moving member protruding from the speaker housing to an outside of the body housing, for retracting or extracting the speaker housing into/from the body housing.

Abstract: In an acoustic design support apparatus, a speaker selection supporter selects a desired speaker as a candidate for use in a given space based on shape information representing a shape of the space. A speaker mounting angle optimizer calculates an optimal mounting direction of the selected speaker by selecting a mounting direction pattern which minimizes a degree of variation among sound pressure levels at a plurality of positions on a sound receiving surface defined in the space. An acoustic parameter calculator calculates a variety of acoustic parameters at sound receiving points within the space based on both of the shape information of the space and the optimal mounting direction of the speaker.

Abstract: A loudspeaker system positioned to one side of a listener includes a closed-back tweeter supported in front of a concave reflective surface. The curvature of the surface is formed by vertical and parallel first and second sides of a rectangle wherein the first side is rotated around the second side as axis. The tweeter projects sound with hemispherical directionality away from the listener and toward the surface. Some of the sound projected by the tweeter is reflected off of the surface toward the listener at an angle of less than about 10° relative to a principal plane of the concavity. A low frequency range loudspeaker projects sound towards the listener generally at an azimuth nearly equal to that of a virtual center of radiation of the sound projected by the tweeter off of the concavity. Thereby, the listener localizes a well-defined sound image at a few meters behind the system.

Abstract: A sound producing apparatus with multi-directivity has two or more speakers to produce music or other types of audio sounds. Each of the speakers can produce audio sounds in a certain direction and at least one speaker is steerable so that its sound propagation direction relative to the others can be changed. Furthermore, one or more speakers can produce audio sounds in an adjustable angular range. One or more of the speakers can be dual-mode speakers, each of which can be operated as a wide-angle speaker or a narrow-angle speaker. With multi-directivity, it is possible to play one type of music in one direction and another type of music in another direction to suit the interests of the audience. The apparatus can be a mobile phone, an audio player, a digital or analog recorder/player, or the like.

Abstract: A thermal management system improves thermal property of the speaker system by promoting air circulation to cool the speaker system. The thermal management system includes a speaker frame, an air guide formed on the speaker frame for guiding the air, a ventilation slit formed on the air guide which penetrates through the speaker frame for air communication, and a spider mounting ring for mounting a spider of the speaker system on the speaker frame. The spider mounting ring has a cut-out at its upper edge which positionally match the air guide. The cut-out is curved sharply at its upper surface while a lower edge of the spider mounting ring is gently curved, thereby creating an air passage of directional property.

Abstract: The cradle mounted monitors allow the performing musician to have Monitors of 100 watts or more that can be used on smaller stages. These Adjustable angle monitors allow musicians to place the monitor in very close Proximity to themselves and yet still be able to hear the monitors full sound Potential.

Abstract: Provided is a hidden speaker apparatus used as a sound apparatus in a digital TV. The hidden speaker apparatus includes a high range speaker that is disposed such that a sound output direction and a direction to a front side where a listener is present form an acute angle. The high range speaker mitigates high range sound attenuation of the hidden speaker apparatus.

Abstract: A loudspeaker assembly is described which assembly may be moved from a non-exposed to an exposed position by suitable means of which a few are discussed. The inventive assembly may comprise an acoustic lens and a particularly advantageous application is for use in an automotive hi-fi system. A number of other applications are also described.

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: An adjustable tweeter assembly is provided to allow a tweeter to be directionally oriented to a selected position. The assembly includes a base, a bowl, and a cup, which are nested together so that the bowl is sandwiched between the base and the cup for movement therebetween. The tweeter is mounted in the bowl which can be rotated and pivoted relative to the cup and to the base. A fastener extends through the cup, the bowl, and the base, and through a leaf spring so as to provide a compressive or clamping force between the base, the bowl, and the cup. The tweeter is rotatable 360° and pivotal approximately 90°.

Abstract: A peripheral apparatus assembly for an electronic device includes a base, two speakers and a signal line. The base supports the electronic device. The two speakers rotate with respect to the base to selectively locate at the first position and a second position. Each speaker has a sound surface from which sound waves generated by the speaker radiate. At the first position, the two speakers are parallel to each other, and the two sound surfaces face away from each other. At the second position, the sound surfaces face the same direction as the two speakers. The signal line electrically connects the two speakers to the electronic device.

Abstract: A spa speaker system having a housing with a speaker mounted therein, wherein the housing is mounted within a hole in the wall of a spa. The speaker system is arranged at an angle within the housing, and is rotatable with respect to the hole. The system can also comprise a watertight membrane arranged to prevent water and contaminants from interfering with speaker components. A system for providing audio to a spa is also disclosed. The system comprises a spa having walls and at least one speaker unit mounted in a spa wall. Each of the speaker units is capable of receiving an audio signal, and generating sound towards the occupants of the spa. Each of the speaker units comprises a speaker that is individually rotatable and arranged at an angle to direct the sound.

Abstract: An improved-fidelity speaker system is presented. The sound system includes a frame and a pair of matching speakers. The frame is formed to hold a first speaker and a second speaker, each having a front side, a back side, and central axis. When attached with the frame, the two speakers are substantially aligned along their central axes in a configuration selected from a group consisting of being mounted in the frame such that the front sides of the speakers are facing away from each other, and being mounted in the frame such that the front sides of the speakers are facing towards each other. When the speakers are operated in unison, a sound wave is generated and pushed outward from the frame and approximately radially from the central axes of the speakers in up to 360 degrees, expanding outward about a plane approximately perpendicular to the central axes.

Abstract: Attention can be effectively called to an advertisement, and the effect of calling attention can be known. A control device 10 is connected to a super-directional speaker 40 that outputs audio in a specific direction, and a speaker pedestal 41 that adjusts the audio output direction of the super-directional speaker 40. The control device 10 takes a picture of an area in front of an advertisement display surface by means of a camera 50, detects a person photographed in the image captured by the imaging unit as a target, adjusts the audio output direction of the super-directional speaker 40 to the direction of the target by means of the speaker pedestal 41, and causes the super-directional speaker 40 to output audio. After outputting the audio, the control device 10 takes another picture by the camera 50, and again determines the direction in which the face of the target is looking based on this picture.

Abstract: A new speakerphone wherein a loudspeaker is oriented to face the listeners of an audio conference is disclosed. New speakerphones which have a bass loudspeaker and at least one tweeter loudspeaker wherein the tweeter loudspeaker is oriented towards listeners of an audio conference are also disclosed.

Abstract: A vehicle audio system includes an interior trim panel having an opening with a speaker module removably secured therein and having a speaker electrically connected to the vehicle audio system when the speaker module is positioned within the opening. The speaker module includes an interface for receiving an audio signal from a linked portable electronic device for playing the audio signal through the speaker when the speaker module is removed from the interior trim panel opening and electrically disconnected from the vehicle audio system, and for playing the audio signal through the vehicle audio system when the speaker module is positioned within the interior trim panel. The speaker module may include an energy storage device and/or generator, such as a dynamo or solar cell, to power the speaker and play audio from a linked digital media player and/or recharge an electronic device, such as a media player or cell phone.

Abstract: An electronic device (100) having a speaker (30) located in a sealed and separate speaker enclosure is described. The electronic device includes a housing (20) having a cavity (22) receiving the speaker with at least one conductive post (342), a circuit board (70), and a cover (60) with at least one through hole (622). The cover is disposed between the housing and the circuit board. One end of the conductive post passes through the through holes and electronically connects the speaker to the circuit board.

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: An improved audio speaker assembly is provided for directional adjustability of the woofer or driver. The assembly includes a housing comprising a baffle, a swivel, a swivel cup, and a retainer. The driver is mounted in the swivel. The swivel and swivel cup are mounted between the baffle and the retainer. The swivel is pivotal approximately 60° relative to the swivel cup, and is rotatable 360° relative to the baffle, thereby selectively positioning the driver in a desired direction. A pair of screws extend through the baffle and into the retainer, and can be tightened so as to lock or clamp the swivel and driver in the selected position, and preclude directional movement due to vibrations, temperature, and humidity.

Abstract: A multimedia audio dock is provided to support a portable electronic device so that the portable electronic device can stand on a plane. The multimedia audio dock includes two retractable arms formed by a plurality of sleeved-through tubes so that the length of the two retractable arms can be varied to a predetermined length. A biaxial hinge providing two rotational axes is connected to the two retractable arms, so that the two retractable arms may rotate relative to each other about two rotational axes. Two speakers provided respectively at the ends of the two retractable arms opposite to the ends connected to the biaxial hinge. The speakers receive the audio signals and output sound. And the electronic device is held between the two speakers moved by the two retractable arms, so that the portable electronic device can stand on the plane.

Abstract: A baffle assembly fastening system and mounting frame assembly that can be installed and secured without the use of tools. A baffle assembly frame defining an opening to receive a fixture and having an exposed first surface. A fastener is rotationally coupled to the baffle frame. The fastener extends from the exposed first surface to secure the baffle assembly to a recessed mounting frame, wherein the fastener can be manually rotated from a disengaged position to an engaged position in less ring is coupled to the baffle assembly and has a plurality of aligning posts that serve to align the baffle assembly as it is inserted into a recessed mounting frame.

Abstract: Embodiments of the present invention provide an audio-based position tracking system. The position tracking systems comprises one or more speakers, an array of microphones and a computing device. The speaker is located at a fixed position and transmits an audio signal. The microphone array is mounted upon a moving object and receives the audio signal. The computing device determines a position of the moving object as a function of the delay of the audio signal received by each microphone in the array.

Abstract: A speaker includes a housing; a support assembly installed on the lower end of the housing to support the housing; at least one first speaker unit installed in the housing to reproduce a sound signal; and a second speaker unit installed in the support assembly to reproduce a sound signal which belongs to a low sound band. Openings are defined through both sides of the support assembly to transmit to the outside sound reproduced by the second speaker unit. A guide cone is provided to the lower end of the support assembly to guide sound toward the openings. The speaker unit can be installed in a baffle which is supported at the opened front end of the housing to be rotated about a vertical axis. Through rotating the baffle, the speaker unit can be actually rotated within a predetermined range to change a sound transmission direction.

Abstract: The invention provides an audio system and 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: A speaker frame that can be rotated to adjust the direction and/or angle of sound dispersion of a speaker mounted therein. One embodiment of the invention includes a recessed speaker frame with an angled flange mounted on an angled ridge. The angled flange rides on the angled ridge to cause the angle of the speaker frame to change, relative to a mounting surface, within a range of angles. The range of angles defined by the maximum cumulative angle of the flange and angled ridge.

Abstract: A system for adjusting a response of a loudspeaker system. The system includes a woofer installed in a housing. The woofer includes a woofer cone. A transmitter for transmitting an ultrasonic audio signal towards the woofer cone. A receiver for receiving the ultrasonic audio signal. A detection unit for determining the position of the woofer cone on the basis of a difference between the phase of the reflected ultrasonic audio signal with respect to the ultrasonic audio signal transmitted from the transmitter. A control unit for adjusting a spring constant of the membrane of the loudspeaker system on the basis of the determined position. A method for adjusting a response of a loudspeaker system, to a module to be used in the system. A computer program product including computer code for adjusting a response of the loudspeaker system.

Abstract: A method for using a device that has a user interface to control the speed of a rotating sound speaker, which has rotating rotors, between predetermined speeds, is disclosed herein. The method includes the steps of providing a user input through the user interface, adjusting some parameters associated with the device in response to the user input, generating a power output, processing the output through a control circuit and continuously varying the speeds of the rotors accordingly. A rotating speaker system is also disclosed herein. The system includes a rotating speaker and a device that controls the speed of the rotating rotors of the speaker between predetermined speeds.

Abstract: The present invention is to provide a speaker, whose surface is distributed with glittering cones, made the user's sense of being positioned within a real, three dimensional space, further the speaker is free from damage, when fallen down or impinged by surrounding objects. The portable, inflatable, and illuminative speaker can provide visual perception and tactile perception. A portable, inflatable, and illuminative speaker comprising: an audio base (3) pervious to light, a speaker (5) mounted inside the base (3), an electric circuit (6) electrically connected to the speaker (5), at least, one light emission diode (LED) (4) disposed inside the base (3) is electrically connected to the circuit (6), and an inflatable body (1) pervious to light is coupled to an exterior wall of the base (3) and partly covering the same, the inflatable body (1) is further coupled to a neck (7) equipped with a leak-proof plate therein (71).

Abstract: A speaker mounting assembly adjustably supports a speaker from a mounting surface. The speaker mounting assembly comprises a speaker enclosure, a support arm, and a mounting bracket mounted to a mounting surface. The speaker enclosure defines a window opening, and the window opening is constructed to receive entry of an insert portion of the support arm. A latch supported by the enclosure and extending from the window opening can be used to engage with the insert portion to automatically retain the support arm when the insert portion is inserted into the window opening. A post extends within the enclosure window and the insert portion engages the post so as to enable pivoting of the speaker enclosure about the support arm. A set screw extends through a channel of the support arm toward the mounting bracket and based on position of the screw, permits pivoting of the support arm about the mounting bracket.

Abstract: A speaker mount has differently shaped coverings. Preferred speakers have a mount that is coupled to a base. The speaker has two interchangeable covers with speaker grills that fit over the mount and have two visibly different shapes.

Abstract: Provided is a portable terminal including a first housing, a second housing coupled to the first housing for sliding relative to the first housing while adjacent to the first housing, an antenna device disposed in the first housing, and a speaker module comprising at least one speaker unit and being one of exposed and concealed by the first housing based on the sliding position the second housing relative to the first housing, the speaker module being disposed in the second housing. The antenna device is disposed in a space between an inner face of the second housing and the speaker module, when the sliding position of second housing relative to the first housing is such that the second housing overlaps with the first housing. There is a space adjacent to the antenna device between the inner face of the second housing and the speaker module, when the speaker module is exposed by sliding the second housing.

Abstract: Speaker assemblies for portable media players are disclosed herein. Speaker assemblies can include means for contracting and expanding the speakers to facilitate viewing and listening to a PMP in multiple orientations. Preferred means for contracting and expanding the speaker casings are operably coupled with means for rotating the PMP, such that when the PMP is in a wide viewable configuration, the speakers are expanded.

Abstract: A tweeter sound source angle adjustment arrangement is disclosed to include a holder member fastened to a T-iron of a speaker assembly and having a top recess and a through hole cut through the top recess, a face panel fastened to the holder member to secure a tweeter to the top recess of the holder member, a hub, which has a top round cup portion and a tubular bottom shank downwardly extending from the top round cup portion, a cushion ring set between the face panel and the hollow hub, and a sliding ring set in the top round cup portion of the hub and freely rotatable in the top round cup portion of the hub.

Abstract: An apparatus that enhances the functionality of a fixture is provided. The fixture may include a light. The light may include an illuminating portion. The fixture may also include a loudspeaker. The fixture may also include a casing that houses at least a substantial portion of the loudspeaker. The casing may also include a slot adapted to allow the sound to be transmitted from the loudspeaker to a surrounding area. The slot may be disposed between the loudspeaker and the illuminating portion of the light. Finally, the fixture may include a sound diffuser. The sound diffusor can preferably direct sound from the loudspeaker radially outward through the slot. In an alternative embodiment the fixture may include a tan in addition to, or instead of, the light.

Abstract: A loudspeaker device includes a flexible base member having a lower mounting plate portion, and an upper hanging portion connected to and disposed above the lower mounting plate portion, and a loudspeaker unit mounted on a first side surface of the lower mounting plate portion of the base member. The upper hanging portion of the base member is detachably hung on a display unit.

Abstract: A portable speaker device that includes a frame configured to receive a portable audio device and at least two speakers that are slidably-connected to the frame. The speakers have a first position for providing a substantially extended configuration and a second position for providing a substantially retracted configuration. The portable speaker device also includes a flush hinged sub-assembly that includes a contoured element and arcuate arms extending from a support and rotatably coupled to the frame at the distal ends of the arcuate arms.

Abstract: A portable speaker device comprising a front mounting plate (1) having two openings (1a, 1b) for sound transmission, two loudspeakers (3a, 3b) each fixedly secured to the front mounting plate for broadcasting through one of the openings, a rear mounting plate extending parallel to the front mounting plate (5), and two enclosure bodies (7a, 7b). These bodies are each formed by a plurality of separate ring-shaped enclosure members (11a1-11a5; 11b1?-11b5) axially movable with regard to each other. The members of each enclosure body have a front member (11a1?; 11b1) secured to the front mounting plate in surrounding relation to one of the loudspeakers and a rear member (11a5; 11b5) secured to the rear mounting plate. In a non-operational position of the speaker device, the mounting plates extend closely to each other, whereby the enclosure bodies have a collapsed shape and the device is very compact.

Abstract: A loudspeaker mounting assembly includes a frame, a sleeve, and a tilt-angle adjustment mechanism. The frame may include an outer frame, an inner frame rotatable about a frame axis relative to the outer frame, and a frame wall extending away from a rear side. The sleeve is coupled to the inner frame at a pivot axis and is tiltable to a plurality of tilt angles relative to the inner frame. The tilt-angle adjustment mechanism is engageable with the sleeve to enable selection of a desired tilt angle. A loudspeaker may be mounted to the sleeve such that the loudspeaker may be swiveled about the frame axis and tilted about the pivot axis.