Abstract: A circuit for operating loudspeakers includes a first, second, third and fourth loudspeaker circuit, having one input each for injecting a signal and one output each for connecting a loudspeaker input. The loudspeaker circuits are designed to amplify the injected signal and to provide the amplified signal at the outputs thereof. The loudspeaker circuits can, for example, be used for a 2.1 sound system. The three channels for a 2.1 sound system can be implemented by an amplifier circuit with four loudspeaker circuits, one loudspeaker circuit each being required for the two stereo channels left and right. A subwoofer channel can be driven differentially by two loudspeaker circuits. The stereo channels are, by contrast, only still connected to one loudspeaker circuit each, and so the stereo channels require at least one further common ground cable.

Abstract: A protective enclosure for an electronic device can include a waveguide to direct and enhance sound waves emanating from a speaker of an electronic device when installed in the protective enclosure. The waveguide can include a first end and a second end. The first end of the waveguide can be located proximate the speaker of the electronic device. The waveguide can increase in cross-sectional area between the first end and the second end.

Abstract: A frame including an opening, a sound outputting unit arranged inside the frame, and an elastically deformable packing attached to the frame and projecting outward from the frame to be formed into an annular shape are provided, and they are configured to be stored in a tire storage unit including a storage concave portion opening upward in which a spare tire is stored in a state in which the packing is pressed against a rim portion of a wheel below a disk portion of the wheel of the spare tire. According to this, two spaces enclosed by the packing, each portion of the wheel, and the tire storage unit are formed, so that sound may be output from a speaker unit in an excellent manner and it is not required that the speaker unit be removed from the tire storage unit when the spare tire is stored in or removed from the tire storage unit.

Abstract: The present invention relates to a loudspeaker assembly and a method of assembling a loudspeaker assembly. In one or more embodiments, the invention comprises forming a front baffle comprising a first driver mounting portion, an intermediate portion, and an edge mounting portion. A first driver is installed in the first driver mounting portion proximate to a first driver aperture. A rear baffle is formed from a second material, which, in one or more embodiments, is less stiff than the first material from which the front baffle is formed. The rear baffle comprises a top portion, sidewalls, a recessed mounting portion, and an edge portion. The edge mounting portion of the front baffle is attached to the recessed mounting portion of the rear baffle such that an entirety of said front baffle is recessed within said rear baffle spaced apart from said open bottom portion.

Abstract: A manipulated vortex waveguide loudspeaker alignment that provides frequency independent amplification and projects with even dispersion and signal correlation from both sides of the transducer. The loudspeaker of the present invention may include a housing that contains a driver baffle that supports at least one transducer. The present invention may further include pressure baffles, waveguide baffles, and output flare baffles arranged within the housing to project amplified sounds with reflection resistance.

Abstract: A speaker apparatus selects a path which emits a speaker sound. The speaker apparatus includes a speaker unit for outputting the sound generated from voice data, a body including at least one or more emission paths for guiding and emitting the sound output from the speaker unit, and a member for opening or shutting out at least one emission path.

Abstract: A speaker arrangement comprises a first sound transducer (101) for reproducing sound in a lower frequency range and having a first on-axis direction and a first center point. The arrangement further comprises a second sound transducer (103) for reproducing sound in a higher frequency range, the second sound transducer (103) being mounted in front of the first sound transducer and having a second on-axis direction and a second center point. The transducers are positioned such that an angle between the first on-axis direction and the second on-axis direction is between 45° and 135°, and such that the distance between the first center point and the second center point is not higher than a cross-over wavelength corresponding to the cross-over frequency. The cross-over frequency between the lower frequency range and the higher frequency range is selected to be within the interval from 1.5 kHz to 3 kHz. An improved point source approximation may be achieved.

Abstract: A sub woofer for in-ground installation and a method of installation. The sub woofer has a cylindrical enclosure or housing having a driver, electronics and a band pass filter. The driver cone is coaxial with the axis of the cylindrical housing. A port tube assembly having a tuned port tube and a resilient elbow interface is attached to an end wall of the housing in an eccentric position with the port tube projecting vertically and terminating at a canopy. The installation requires placing the enclosure in an excavation and positioning the housing and port assembly so a predetermined above ground spacing exists between the upper end of the above ground port tube and grade.

Abstract: A three-dimensional air-adsorbing structure for use in a volume in which there is a time-varying acoustic field. The structure has a three-dimensional, unitary, skeletal, porous scaffold having scaffold openings distributed within its volume, where the scaffold openings make up at least about 50% of the volume of the scaffold, air-adsorbing material particles, and a hydrophobic binder that couples air-adsorbing material particles to each other to form agglomerates and couples particles and agglomerates to the scaffold. The structure has structure openings in the agglomerates and structure openings between agglomerates, such structure openings being open to the outside environment, wherein the cumulative volume of the structure openings that have an apparent diameter larger than about 0.

Abstract: A grille 10 for covering an aperture in a panel 16 that supports audio equipment behind a back face of the panel 16, the grille 10 being installed upon a front face of the panel. The grille comprises a formed sheet of pierced and expanded sheet material that has a major axis (A-A) running parallel to a direction in which the sheet is introduced to a forming machine and a minor axis (B-B) that extends orthogonally to the major axis (A-A). The formed sheet has a central portion with surface discontinuities selected that are swirls 18, stiffening furrows 22 and ridges 20 running substantially parallel to the major axis (A-A) and combinations thereof.

Abstract: A vibration-proof sound box includes a sound box, a first board unit, a speaker, a second board unit, and an engagement structure having a clasp, a holder and a vibration-absorption unit. The clasp has a base portion connected to the first board unit, two clasping arms extending from the base portion, and a clasping space formed between the clasping arms. The free end of each of the clasping arms is formed with a protruding clasping piece. The holder has an accommodating portion connected to the second board unit, and two clasping holes passing through the accommodating portion. The two clasping pieces respectively engage the two clasping holes. The vibration-absorption unit has a main body snugly disposed in the clasping space, and two extension portions extending from the main body. The two extension portions abut the inner wall of the holder.

Abstract: The present invention relates to moving armature receiver assemblies wherein a first U-shaped armature and a second U-shaped armature are configured for suppression of vibration of a housing structure along a longitudinal housing plane. The first and second U-shaped armatures may be shifted away from each other along a longitudinal housing plane to render the first and second U-shaped armatures partially overlapping in the orthogonal plane with a predetermined overlap distance.

Abstract: A vibration-proof sound box includes a sound box, a first board unit, a speaker, a second board unit, and an engagement structure having a clasp, a holder and a vibration-absorption unit. The clasp has a base portion connected to the first board unit, two clasping arms extending from the base portion, and a clasping space formed between the clasping arms. The free end of each of the clasping arms is formed with a protruding clasping piece. The holder has an accommodating portion connected to the second board unit, and two clasping holes passing through the accommodating portion. The two clasping pieces respectively engage the two clasping holes. The vibration-absorption unit has a main body snugly disposed in the clasping space, and two extension portions extending from the main body. The two extension portions abut the inner wall of the holder.

Abstract: A speaker cabinet includes an outer shell, at least one inner shell, and a core material. The outer shell includes high tensile strength material and includes at least one aperture. The at least one inner shell includes high tensile strength material and includes an aperture configured to accept an audio driver. Each of the at least one inner shell corresponds to one of the at least one aperture of the outer shell. The core material includes a vibration absorbing material. The aperture of each inner shell is positioned adjacent to the corresponding aperture of the outer shell. Each inner shell is held in position by the core material, and each inner shell does not make direct mechanical contact with the outer shell.

Abstract: A loudspeaker having an external extension includes an enclosure, at least one speaker, and a port formed in a surface of the enclosure so as to communicate with an outside, and a hollow external extension extending from the port outwardly.

Abstract: A noise attenuation system is disclosed for use in a structure having a recessed fixture mounted therein or other unit which creates a hole in the structure in which it is secured, such as a ceiling. The noise attenuation system is constructed to permit the absorption of noise emitted into the structure from the mechanism. The noise attenuation includes a noise absorbing muffler positioned within the structure in an area substantially surrounding the mechanism. The noise absorbing layer includes an outer barrier layer that limits the passage of sound waves emitted from the mechanism therethrough. The noise absorbing muffler further includes a noise absorbing layer positioned adjacent the outer barrier layer. The noise absorbing layer absorbs a predetermined amount of sounds waves emitted from the recessed fixture. Additionally, an optional noise absorbing layer, or equivalent decoupling material can be included to decouple the barrier from the structure for low frequency noises.

Abstract: A speaker, including: a casing having a baffle plate; and a sound source fixed to the baffle plate of the casing, wherein at least one cutout is formed in the baffle plate, the at least one cutout having a configuration in which a width of the at least one cutout increases with an increase in a distance from the sound source.

Abstract: A sound transmission, material is made of fibers entangled with each other and has a self-standing property and a high performance sound transmission property, namely the Taber stiffness is not less than 5 mN·m, the bending resistance is not less than 100 mN, the porosity is not less than 50%, and the thickness is not more than 3 mm.

Abstract: A speaker device with vibration absorbing function includes a main body and at least one damping mechanism. The main body is installed inside a first casing and a second casing for generating sound. The at least one damping mechanism is connected to the main body and includes a sheathing member, a sleeve member and a resilient member. The sheathing member is disposed on the first casing and located in a position near the main body. The sleeve member is connected to the main body and sheathes the sheathing member in a slidable manner for transmitting vibration generated by the main body as generating sound. Two ends of the resilient member are respectively installed inside the sheathing member and inside the sleeve member for resiliently abutting against the sleeve member, so as to absorb the vibration transmitted from the sleeve member as the main body generates sound.

Abstract: A loudspeaker cabinet (2) includes a device for mechanical connection to another loudspeaker cabinet and/or a device (8) for adjusting an angle formed between the cabinet (2) and the other cabinet. The connection device includes a mechanism for the conversion of a translational actuation control in a first direction into a translational movement of at least one first latch in a second direction different from the first direction. The angle adjustment device includes an element (8) the length of which in the operating position adjusts the angle and is determined according to the position of a rotary component (10).

Abstract: A loudspeaker enclosure is disclosed that includes a plurality of exterior panels enclosing an air volume and a first brace disposed within the air volume and comprising a first reentrant through opening shaped to closely follow a profile of loudspeaker assembly components within the enclosed air volume. A loudspeaker enclosure is disclosed that includes: a plurality of exterior panels enclosing an air volume; at least one loudspeaker coupled to a front exterior panel; a first brace disposed within the air volume and comprising a first reentrant through opening; a second brace disposed within the air volume and comprising a second reentrant through opening; and a third brace disposed within the air volume and comprising a third reentrant through opening. The first, second, and third reentrant through openings are shaped to closely follow a profile of loudspeaker assembly components within the enclosed air volume.

Abstract: In a low frequency transducer system a multi-compression chamber, an inverse horn structure is employed in combination with a resonance-distortion filter chamber. The filter chamber effectively expands the effective enclosure volume at low frequencies and connected to one of the compression chambers filter parasitic resonances and distortion and allowing the system to more efficiently reproduce low frequencies while being able to use smaller diameter transducers and maintaining good system sensitivity. Compression chambers are organized for constant or continuous compression on a section-by-section basis throughout the inverse horn system.

Abstract: One embodiment of the present invention sets forth a system that includes a detection device and a processor. The detection device is configured to sense that a handheld device has not been placed on or near a surface. In response to sensing that the handheld device has not been placed on or near a surface, the detection device is configured to transmit an indicator to the processor. The processor is configured to receive a first audio signal, and determine that the handheld device has not been placed on or near a surface by receiving the indicator from the detection device. In response to determining that the handheld device has not been placed on or near a surface, the processor is further configured to apply a compensating function to the first audio signal to generate a second audio signal, and transmit the second audio signal to a speaker.

Abstract: An audio equipped fan is disclosed having a housing defining an inner cavity, a motor disposed at least partially in the inner cavity of the housing and having an output shaft extending therefrom that is rotatable by the motor, a fan connected to the output shaft of the motor and rotatable therewith, a grille connected to the housing and positioned in alignment with the fan, the grille having an interior side and an exterior side and defining first openings through which air may flow while the fan is rotated and second openings through which sound may travel, and having a speaker connected to at least one of the housing, motor, fan and grille and aligned on the interior side of the grille with the second openings of the grille so that sound may travel from the speaker through the grille. Related methods are also disclosed.

Abstract: A speaker enclosure and method of building same is provided for redirecting standing waves outside the enclosure. The enclosure includes an exterior and an interior comprised of a body having six interior surfaces defining the interior. One of the surfaces has a speaker opening and another of the surfaces has a tuned port opening and defines four corners opposite the speaker opening. An element having an acoustically reflective surface faces the interior and is positioned in a plane that intersects and is inclined with respect to each of the interior surfaces that form the corner. A handle system that includes an attachment means is mounted to the exterior of the enclosure. A rotatable and detachable handle is mounted to the attachment means.

Abstract: A protective enclosure for an electronic device can include a waveguide to direct and enhance sound waves emanating from a speaker of an electronic device when installed in the protective enclosure. The waveguide can include a first end and a second end. The first end of the waveguide can be located proximate the speaker of the electronic device. The waveguide can increase in cross-sectional area between the first end and the second end. The second end of the waveguide can be located proximate a front surface of the protective enclosure and can direct sound waves toward a user of the electronic device.

Abstract: Provided are a speaker and a speaker system. The speaker includes a main unit and a sub unit. The main unit emits a sound in a first direction. The sub unit is formed integrally with the main unit and emits a sound in a second direction different from the first direction.

Abstract: An acoustic system kit for a vehicle speaker and associated methods of installation and manufacture are disclosed. A drum of open-cell foam, preferably several inches thick, having a peel-and-stick pressure-sensitive adhesive backing is cut with two concentric circles to create an outer ring, and inner ring, and a core. The parts are sized to correspond in diameter, respectively, to the front edge, rear edge, and back disc of a particular size of speaker. The inner ring is cut circumferentially to reduce its height to a thin strip relative to the outer ring and drum. Using the pressure-sensitive adhesive, the core is affixed to the inside wall of vehicle door directly behind the door's speaker mount, the inner ring is affixed to the rear edge of a speaker to be installed, and the outer ring is affixed to front edge of the speaker. The speaker is then installed on its mount.

Abstract: A frame including an opening, a sound outputting unit arranged inside the frame, and an elastically deformable packing attached to the frame and projecting outward from the frame to be formed into an annular shape are provided, and they are configured to be stored in a tire storage unit including a storage concave portion opening upward in which a spare tire is stored in a state in which the packing is pressed against a rim portion of a wheel below a disk portion of the wheel of the spare tire. According to this, two spaces enclosed by the packing, each portion of the wheel, and the tire storage unit are formed, so that sound may be output from a speaker unit in an excellent manner and it is not required that the speaker unit be removed from the tire storage unit when the spare tire is stored in or removed from the tire storage unit.

Abstract: A protective material for acoustic transmission is disclosed which optimizes sound transmission of the material while also providing a barrier from ambient conditions to transducers. The protective material of the disclosure is a self-tensioning membrane with properties such that sound attenuation is minimized as the membrane transfers acoustic energy. In one embodiment, the self-tensioning membrane is used to cover an opening in an electronic device enclosure by securing the entire outer edge of the membrane with an adhesive. Such a construction creates an unbound region where the self-tensioning membrane can effectively transmit sound energy by moving in response to incoming sound waves. The self-tensioning membrane allows sound to travel out of the protective enclosure while also preventing liquid or particulate intrusion.

Abstract: A speaker system includes a case having a receiving chamber; a variable mechanism received in the receiving chamber for dividing the receiving chamber into a first chamber and a second chamber and being capable of varying a volume of the first chamber; and a speaker unit is received in the first chamber and defining an acoustic port facing an exterior of the case. The separating wall alternatively inserts into one of the receiving member for placing the separating wall precisely at specific locations. Thus, it is easy to vary the volume of the first chamber for achieving an excellent acoustic capability of the speaker system.

Abstract: The present disclosure provides a speaker box including a main body portion and an upper plate connected to the main body portion. The main body portion includes a frame for receiving a speaker body therein. The frame has a cavity for housing the speaker body, a partition wall, and a groove separated from the cavity by the partition wall for preventing the frame from shrinking. A plurality of reinforcement ribs spaced from each other is disposed on an inner side wall opposite to the partition wall.

Abstract: A stand for supporting sound amplifiers, wherein the stand has a base for resting on a floor, an amplifier support platform on the base, the plane of said platform being slanted downwardly from front to rear, a back rest pivotally mounted on the base for pivoting between 0° and 90° to the plane of the platform, and cooperating stop means on the base and said back rest for stopping pivoting motion of the back rest beyond 90° to the plane of the platform, wherein the plane of the platform is below the plane of the back rest when the back rest is in a stored position lying adjacent the platform.

Abstract: A portable full duplex communication device (100) is provided with improved acoustic porting (114) by providing an earpiece enclosure (108) within the housing (102) of device. The earpiece enclosure (108) includes an array of micro-ports (114) formed to provide optimal low frequency response and echo performance without the use of external acoustical leak ports to the housing.

Abstract: According to one embodiment, an electronic apparatus includes a speaker and a matching section. The speaker includes an output section configured to output sound and an opening which exposes the output section. The matching section closes the opening and includes a slit which partially exposes the output section.

Abstract: The present invention relates to speaker enclosures utilizing the golden ratio geometrically throughout the design to reduce reflections, resonance and phase shifting, and to improve the transient response. Enclosures can be box-shaped, trapezoidal, suspended or otherwise configured. The enclosure has a driver wall, a baffle and a rear wall. The driver wall and baffle define a front chamber, and the baffle and rear wall define a rear chamber. The volumetric ratio between the rear chamber and front chamber can be approximately 0.6. The rear chamber also can have braces or dividers that segment the chamber into a central portion and two side portions. The volumetric ratio between the side portions and the central portion can be approximately 0.6. Ports of various configurations are provided. Braces can be used in conjunction with the ports to diffuse the incoming air. The baffle can have a plurality of radiused holes there through.

Abstract: A ceiling speaker assembly is disclosed. In one or more embodiments, the ceiling speaker assembly includes a three-dimensional support frame attached to a perforated grille. The support frame is configured with a speaker aperture adjacent to which a speaker is mounted and a port aperture. The speaker aperture and port aperture are configured such that the speaker aperture is in communication with the front of the speaker and the port aperture is in communication with the rear of the speaker. In one or more embodiments, the support frame includes a horn cavity that functions as an acoustical cross-over such that higher frequencies generated by the speaker are emitted primarily through the speaker aperture and the lower frequencies generated by the speaker are emitted primarily through the port aperture.

Abstract: A ceiling-mounted loudspeaker includes a horn-shaped enclosure, an acoustic driver, and a front module. The tubular or horn-shaped enclosure carries a slanted woofer or loudspeaker driver which radiates into an angled or slanted first opening. The tubular enclosure terminates at bottom in a second, circular opening substantially parallel to a second plane, wherein the woofer's slanted plane is inclined with respect to the second plane. The slanted woofer can be oval and radiates sound through the enclosure's interior lumen and outwardly through ports defined in a substantially circular baffle carrying the front module and connected to the second opening. The baffle carries a midrange and tweeter near the ceiling where they can provide enhanced sound dispersion.

Abstract: A speaker device with vibration absorbing function includes a main body and at least one damping mechanism. The main body is installed inside a first casing and a second casing for generating sound. The at least one damping mechanism is connected to the main body and includes a sheathing member, a sleeve member and a resilient member. The sheathing member is disposed on the first casing and located in a position near the main body. The sleeve member is connected to the main body and sheathes the sheathing member in a slidable manner for transmitting vibration generated by the main body as generating sound. Two ends of the resilient member are respectively installed inside the sheathing member and inside the sleeve member for resiliently abutting against the sleeve member, so as to absorb the vibration transmitted from the sleeve member as the main body generates sound.

Abstract: There is provided an acoustic element (102) for placement in a sound path (120) of a loudspeaker device (100), the acoustic element (102) comprising a container(104) and an acoustic volume increasing material(106) located in the container (104). In an embodiment, the container (104) comprises wall portions with different physical characteristics. In other embodiments, the walls of the container (104) are made of the same material.

Abstract: Speaker performance can be improved by routing sound from a rear side of speaker through a circuitous port formed between inner and outer surfaces of a wall of the speaker enclosure. An audio speaker enclosure comprises an enclosure housing defining an internal volume with a speaker opening at a first end thereof, the speaker opening being configured to receive a speaker therein, the enclosure housing having an inner surface facing the internal volume and an outer surface, the enclosure further defining at least one port communicating between the internal volume and the outer surface, the at least one port extending between the inner and outer surfaces along a port length that is greater than a maximum housing thickness between the inner and outer surfaces. The speaker enclosure can be made by arranging an inner speaker enclosure shell within an outer speaker enclosure shell such that the port is defined therebetween.

Abstract: A speaker unit mounting structure includes a provisionally fastening mechanism for fastening a speaker unit to a ceiling with a cabinet section of the speaker unit inserted in a mounting hole of the ceiling. The provisionally fastening mechanism includes a provisionally fastening tab formed of resilient metal, fixed to the outer peripheral side surface of the cabinet section and having a stepped engaging section engageable with the inner peripheral edge portion of the mounting hole. Engagement of the engaging section with the inner peripheral edge portion of the mounting hole can be canceled by a human operator pressing, from the face side of the ceiling, an operating section of the tab, exposed to a gap between the front side and a flange portion of the speaker unit, to thereby resiliently deform the operating section.

Abstract: A mounting ring with which an engaging hook of a fall-preventing member is to be engaged and a flexible handle member are fixed within an area of a cabinet section that is located upward of a first plane passing through the position of a center of gravity of the cabinet section generally in parallel to the bottom surface of the cabinet section and located to one side of a second plane passing through the position of the center of gravity in intersecting relation to the first plane. The speaker unit hung by the handle member being held with a hand of a human operator is inclined, so that the mounting ring is oriented upward near the hand. Thus, the human operator can perform with ease an operation for engaging the engaging hook with the mounting ring with one hand while holding the handle member with the other hand.

Abstract: The present disclosure relates to a speaker cabinet for electronic device, which is disposed in an electronic device and comprises a cabinet body, two first fixing structures, two dampers, and two second fixing structures. The damper is disposed on two side surfaces of the cabinet body through the two first fixing structures and fixed on the electronic device through the two second fixing structures for fixing the cabinet body in the electronic device. The cabinet speaker according to the present disclosure adopts only two fixing structures to fix the cabinet body to the electronic device. The damper is also used for mitigating the vibrations generated by the cabinet body. In addition, the two fixing structures are used for supporting the damper for avoiding inclination of the cabinet body towards an unpredictable direction and colliding the housing of the electronic device and its internal components.

Abstract: An integrated rigging system for loudspeakers comprises top and base front and top and base rear rigging structures for mounting to the internal framework of the loudspeaker and for forming the top front, base front, top rear and base rear portions of the loudspeaker's enclosure, and a plurality of links, each link extendable from a link stowing channel in one of the rigging structures into a link receiving slot in the corresponding rigging structure of the enclosure of an abutting loudspeaker for linking the rigging structure of the loudspeaker with the corresponding rigging structure of the enclosure of the abutting loudspeaker.

Abstract: Disclosed herein is a rigging component and method for connecting an array element in an array. The rigging component includes an elongate housing connectable to an array element; a connection link disposed within, and slidably extendable from, one end of the housing; a conduit extending into the housing from its opposite end, the conduit dimensioned to receive another connection link extending from an adjacent rigging component; and at least one latching device associated with the conduit for releasably retaining the other connection link within the conduit. Further disclosed is a system for connecting an array element in an array. The system comprises at least one rigging component having a connection link extendable to be locked at a single fixed distance and at least one rigging component having a connection link extendable to be locked at one of a plurality of fixed distances.

Abstract: A customizable modular speaker system. The system includes one or more acoustic modules; one or more optional spacer modules coupled to the acoustic modules; and one or more end caps that can be coupled to the acoustic or spacer modules. The modules and endcaps, when assembled, formed a substantially continuous T-slot. The T-slot is capable of engaging a wall mounting cradle which in turn can affix the speaker to a surface with a mounting bracket to create a wall mounted speaker. In other instances, where a shelf or tower speaker is desired, the T-slot engages a spine mounted in a base. The present modular system allows for the same components to be assembled into a bookshelf speaker, a tower speaker, a sound bar, or a wall speaker.

Abstract: A loudspeaker module includes a housing having a plurality of side walls and a cover plate positioned over a top surface of the plurality of side walls, a bottom of the housing remaining open. A driver mounting plate is secured to the plurality of side walls and divides the housing into an upper compartment and a lower compartment. At least one of the plurality of side walls includes an aperture linking the lower compartment to the external environment surrounding the housing. A driver is mounted to the driver mounting plate, the driver being positioned to fire into the lower compartment of the housing. A mounting bracket is secured to the at least one of the plurality of side walls including an aperture.

Abstract: Systems and methods to remove heat from an acoustic enclosure are provided. An apparatus includes an enclosure and a free convection passage located within the enclosure. The convection passage includes a non-horizontal convection inlet acoustic port having an inlet opening to the ambient environment and a non-horizontal convection outlet acoustic port having an outlet opening to the ambient environment. At least one heat producing element is coupled to an acoustic port of the free convection passage via a low thermal resistance conduction path. Heat produced by the heat producing element initiates a unidirectional free convective airflow in a direction corresponding to a path between the convection inlet acoustic port and the convection outlet acoustic port.

Abstract: A speaker fastening mechanism includes a first fastening component installed inside an audio device, a second fastening component installed inside the audio device and disposed on a side of the first fastening component, a speaker unit whereon a first fixing part and a second fixing part are formed, a first elastic component wedged in the first fixing part and fastened inside the first fastening component, and a second elastic component wedged in the second fixing part and fastened inside the second fastening component in a rotating manner after the first elastic component is fastened inside the first fastening component.