Abstract: A speaker system includes a cabinet, a front baffle, a speaker unit, a rear baffle, and a fitting member fitted in the rear baffle. The front baffle includes a front duct segment extending backward from the rear thereof. The rear baffle includes an opening portion, a duct connecting portion, and a receiving portion having a semicircular cross section. The receiving portion extends from the opening portion to the duct connecting portion while protruding backward. The opening portion, the receiving portion, and the duct connecting portion have a groove. The receiving portion has an engagement hole. The fitting member having a semicircular cross section is formed by double molding. The frame of the member is made of relatively rigid resin and the rim thereof is made of relatively flexible resin. The frame has an engagement projection. The receiving portion and the fitting member constitute a sealed rear duct segment.

Abstract: A loudspeaker system includes a loudspeaker enclosure having an inside space, a loudspeaker provided on the loudspeaker enclosure, a first diaphragm which has one of ends fixed to a surface of the loudspeaker enclosure and the other end, a second diaphragm which has one of ends fixed to the surface of the loudspeaker enclosure and the other end, a coupling portion having an elasticity, and coupling the other end of the first diaphragm to the other end of the second diaphragm, an opening structure provided in the surface of the loudspeaker enclosure, and a sealing member provided to a portion among the first and second diaphragms, the coupling portion and an edge part of the opening structure, and closing the inside space to hold an airtightness of the loudspeaker enclosure in a state that the first and second diaphragms can be vibrated.

Abstract: A speaker enclosure having a substantially seamless rigid outer skin, a middle sound absorbing layer, and a substantially seamless inner skin results in a lightweight speaker having sound absorbing characteristics. The speaker enclosure is comprised of two basic parts, a box section and a baffle section where each of these sections include a rigid outer skin, the middle sound absorbing layer and a seamless inner skin and are made according to the same method. The outer skin is formed from a layer of sheet molding compound, the middle sound absorbing layer includes pieces of honeycomb material, and the inner skin is formed from a layer of sheet molding compound. The layers of material are placed into a mold and then cured through vacuum bagging and heating thereby producing a strong, lightweight speaker enclosure made of materials which attenuate the transmission and retransmission of errant sound waves in the enclosure thereby reducing distortion of the sound signal produced by the speaker.

Abstract: The present disclosure relates to an acoustic device. The acoustic device includes an enclosure and a speaker enclosed by the enclosure. The enclosure includes a magnesium based composite material. The magnesium based composite material includes a magnesium based metal matrix and nanoparticles dispersed therein. The present disclosure also relates to an earphone.

Abstract: A loudspeaker grille for a wall-mount loudspeaker in a home environment is disclosed, which comprises a frame attached directly to a wall where a loudspeaker being mounted, the loudspeaker enclosure lending no support to the frame, and a cover stretched across the frame, the cover being substantially transparent to acoustic energy, wherein the cover provides protection as well as decoration to the underneath loudspeaker.

Abstract: A display device includes an enclosure, a pair of speakers, and a sound reflector accommodated in the enclosure. The sound reflector defines two chambers for receiving the sounds generated from the pair of speakers respectively and outputting the sounds out of the display device independently.

Abstract: A speaker device includes a speaker and a connecting component. The speaker has a pair of input terminals spaced apart with a first predetermined distance therebetween. The connecting component electrically couples the speaker to a printed circuit board. The connecting component has a relay-use printed circuit board and a pair of lead wires. The relay-use printed circuit includes a pair of sub-board portions and a separation portion. The sub-board portions have a pair of terminal holes. The input terminals of the speaker are disposed through the terminal holes, respectively. The separation portion is disposed between the sub-board portions to couple the sub-board portions with a second predetermined distance between the terminal holes of the sub-board portions, and selectively separate the sub-board portions when the first predetermined distance between the input terminals of the speaker is different from the second predetermined distance between the terminal holes of the sub-board portions.

Abstract: A Speaker Side Air Supply Cabinet that has three things that are working together the Speaker Side Air Supply ducts, the Front Air Chamber, and the Bass Horn. The Front Air Chamber takes in air then compress it so that we get a very high sound pressure {sound wave} output, and the Speaker Side Air Supply ducts supply all the air the Front Air Chamber needs. At the same time the Speaker Side Air Supply ducts also supplying air to the Bass Horn working together to eliminate the pull back on the out going sound wave so there is no reduction of the very high sound wave volume output.

Abstract: A speaker cabinet according to an embodiment of the present invention includes: a pair of side plates whose outer peripheral portions define no apexes; and a bent plate curved in conformity with the outer peripheral portions of the pair of side plates and mounted to the pair of side plates.

Abstract: A loudspeaker system includes an enclosure having an open end defining a plane, a baffle, a loudspeaker operating in the 4 kHz to 10 kHz range, and a device, preferably a ribbed portion having a plurality of grooves, coupled to the baffle for modifying the spectral profile of the projected sound waves. The baffle includes first and second angled surfaces each oriented at an oblique angle with respect to the plane. The speaker is coupled to the first angled surface and the ribbed portion is coupled to the baffle along the intersection of the first angled surface and the second angled surface. When mounted in a wall or ceiling, the system projects a sound field substantially indistinguishable from that of a loudspeaker located within the listener's listening plane. The baffle can also have acoustic damping material attached thereto, with grooves formed therein, to prevent reflections of 4 kHz to 10 kHz sound.

Abstract: A box-shaped enclosure of a storage box includes a deadening wall or walls defining a storage space between first and second planes. The storage space is open at the first and second planes. A deadening wall member extends along the first plane. An auxiliary box-shaped enclosure is connected to the box-shaped enclosure so as to close the first plane of the box-shaped enclosure. The auxiliary box-shaped enclosure defines an auxiliary space isolated from the storage space with a deadening wall member. The storage space is connected to the fresh air through the ventilation opening and the auxiliary space. The deadening wall or walls of the box-shaped enclosure and the deadening wall member serve to prevent the leakage of the operating sound.

Abstract: An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide.

Abstract: An on-wall loudspeaker and mounting apparatus includes an enclosure, a loudspeaker driver mounted in the enclosure, brackets of equal length and attachable to a wall, arms of equal length pivotably attached to the brackets and pivotably attached to the enclosure, each arm pivotable perpendicular to the wall. A movement of a cone in the driver is parallel to the pivoting of the arms when an alternating current signal is applied to the driver. The present invention mitigates vibrations transmitted to walls and other building structures, and provides improved means for reproducing low frequencies below a range of conventional loudspeakers.

Abstract: An audio speaker cover that can remain on the speaker while in use comprising: a storage compartment with an opening; said opening configured to receive an audio speaker; said storage compartment configured to enclose an audio speaker; said storage compartment further comprising a front panel; said front panel comprising an outer cover and a sound radiating panel; said outer cover removably attached to said storage compartment and configured to cover said sound radiating panel; said sound radiating panel configured to cover the radiating side of the speaker.

Abstract: The invention relates to a cladding part for components. The cladding part has at least two areas with different vibration damping properties. The different areas make it possible in a simple manner to meet partly conflicting requirements for cladding parts of the components in an optimum manner. The components include medical examination devices.

Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.

Abstract: An attachment apparatus for forming an arrangement comprising a plurality of loudspeaker boxes hanging one above the other comprises a latching connection by means of which two loudspeaker boxes which are adjacent in the arrangement can be connected together at a pre-selectable angle.

Abstract: A long and narrow loudspeaker on an entire wall gives off a cylindrical wave, which covers the entire room. Extra loudspeakers fixed at an angle against the wall will be heard in another direction, producing angle stereo independent of where one is in the room. Electro-dynamic loudspeakers are made of long plates of iron with air gapes between them where magnetic fields are produced. In the air gaps are strips, which conduct the sound currents. The strips influence directly one or more membranes. The magnetic field can be produced by permanent magnets, electromagnets or through concentration of geomagnetic fields. Long loudspeakers, which use other forces such as electrostatic forces, only need to be made for small sound pressure at the membrane.

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 speaker enclosure, or enclosure, and kit with plural linearly aligned panels connected by flexible couplings are shipped in a parallel stack with all the coupled panels still coupled during shipment, plus additional panels, also stacked parallel. The flexible couplings may be provided by a single sheet of flexible substrate coupled to the linearly aligned panels. One side of the assembled speaker enclosure includes a middle panel of the coupled panels, having at least one flat rabbet joint. The external length of the middle panel is long enough to permit folding of at least one of the outermost of the panels, with flexible substrate and a covering, under the middle panel. The assembled speaker enclosure is held together with a flexible substrate, adhesive, clamps, or preferably, any two thereof. Openings for speakers and connector cups are provided. The kit includes adhesive, instructions, at least one connector cup, and hardware.

Abstract: A box-shaped enclosure of a storage box includes a deadening wall or walls defining a storage space between first and second planes. The storage space is open at the first and second planes. A deadening wall member extends along the first plane. An auxiliary box-shaped enclosure is connected to the box-shaped enclosure so as to close the first plane of the box-shaped enclosure. The auxiliary box-shaped enclosure defines an auxiliary space isolated from the storage space with a deadening wall member. The storage space is connected to the fresh air through the ventilation opening and the auxiliary space. The deadening wall or walls of the box-shaped enclosure and the deadening wall member serve to prevent the leakage of the operating sound.

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: In some embodiments, a subwoofer enclosure includes a substantially triangular first face, second face, third face, and fourth face, a first corner at an intersection of the first, second and third faces, a second corner at an intersection of the first, second and fourth faces, a third corner at an intersection of the first, third and fourth faces, a fourth corner at an intersection of the second, third and fourth faces, wherein an angle between the first corner and a midpoint between the third corner and the fourth corner, having the second corner as its vertex, is substantially ninety degrees, wherein an angle between the third corner and the fourth corner, having the second corner as its vertex, is substantially ninety degrees, and a subwoofer driver attached to the third face, having a free air resonant frequency less than one hundred Hertz.

Abstract: An improved structure for the compositely formed sound box consists of a plastic-made box with one-way opening and intensified rib and inlet components provided inside the box. The main feature is the bubbled one-piece soundproof layer inside the sound box to expand the overall structure of the sound box, reduce the thickness of the sound box, minimize the thickness of the shell, and upgrade the soundproof performance at the same time.

Abstract: A box-shaped enclosure of a storage box includes a deadening wall or walls defining a storage space between first and second planes. The storage space is open at the first and second planes. A deadening wall member extends along the first plane. An auxiliary box-shaped enclosure is connected to the box-shaped enclosure so as to close the first plane of the box-shaped enclosure. The auxiliary box-shaped enclosure defines an auxiliary space isolated from the storage space with a deadening wall member. The storage space is connected to the fresh air through the ventilation opening and the auxiliary space. The deadening wall or walls of the box-shaped enclosure and the deadening wall member serve to prevent the leakage of the operating sound.

Abstract: An acoustic material is intended to be mounted behind a loudspeaker 8 to decrease the resonant frequency and/or to reduce the back volume. The acoustic material includes a woven or non-woven fabric which supports highly porous particles or fibers such as particles of carbon black. The woven or non-woven is thin and light to avoid damping sound, whilst still being capable of retaining the porous material. The use of a flexible acoustic material allows the material to be more easily included with loudspeakers in portable mobile devices.

Abstract: A front resonator for a speaker of a wireless device, comprising: an enclosure mounted over the speaker and forming with an upper surface of the speaker a front volume for the front resonator; and, a horizontal or approximately horizontal tube formed or mounted on a surface of the enclosure, the tube coupled to the front volume, and the tube having at least one end to emit sound generated by the speaker and passing through the front volume and tube from the wireless device.

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 self-draining grill and system incorporating the same. The grill includes a plurality of ribs extending from a surface of a housing and angled downward in a direction across the surface of the housing. One or more openings are disposed between the ribs and allow air flow to a sound generation device.

Abstract: Disclosed is a loudspeaker assembly incorporating innovations resulting in an enclosure of very small volume to which is integrated a large area, shallow and lightweight acoustic diaphragm assembly capable of a natural resonant frequency of a few Hertz. This is achieved by incorporating a vacuum chamber in conjunction with a chamber containing compressed gas or vapor that acts against a movable pressure boundary of changeable area being mechanically coupled with the acoustic radiating diaphragm. In an alternative operating mode, the apparatus also serves as a passive low frequency acoustic attenuator.

Abstract: A speaker cabinet Includes a first surface oriented generally along a first plane and a second surface oriented generally along a second plane. The second plane is generally orthogonal to the first plane. A third surface may be positioned between the first and second surfaces and may be oriented generally along a third plane that intersects the first plane and the second plane. The third surface may be configured to redirect an audio 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 speaker box, or enclosure, and kit with five panels connected by flexible couplings is shipped in a stack of four of the five panels, plus two side panels. The flexible couplings may be provided by a single sheet of fabric coupled to the five panels. When the kit is assembled into a speaker box, the five coupled panels circumferentially engage the two side panels, which are shaped as isosceles trapezoids. One side of the assembled speaker box includes two coupled panels, of the five coupled panels, joined with a flat rabbet joint. The assembled speaker box is held together with bundle ties, adhesive, or preferably, both. Openings for a speaker and a connector cup are provided. The kit includes adhesive, instructions, bundle ties with bundle tie locks, a connector cup, and hardware.

Abstract: A speaker enclosure, or enclosure, and kit with plural linearly aligned panels connected by flexible couplings are shipped in a parallel stack with all the coupled panels still coupled during shipment, plus additional panels, also stacked parallel. The flexible couplings may be provided by a single sheet of flexible substrate coupled to the linearly aligned panels. One side of the assembled speaker enclosure includes a middle panel of the coupled panels, having at least one flat rabbet joint. The external length of the middle panel is long enough to permit folding of at least one of the outermost of the panels, with flexible substrate and a covering, under the middle panel. The assembled speaker enclosure is held together with a flexible substrate, adhesive, clamps, or preferably, any two thereof. Openings for speakers and connector cups are provided. The kit includes adhesive, instructions, at least one connector cup, and hardware.

Abstract: A high-performance, full-range speaker includes a front horn having a channel tube located on the inside at the bottom side, a rear cover shell, a holder base defining a sound transmission passage, a speaker unit mounted on the holder base, a control circuit board, an equalizer mounted in the sound transmission passage of the holder base to buffer the gain of the treble of the forward waves produced by the speaker unit and to balance the mid-range, a bass resonator, a rack and first, second, third and fourth resonance chambers in air communication with the channel tube and the bass resonator to eliminate noises and to amplify the bass.

Abstract: An electro-optical device includes an electro-optical panel, a holding frame that holds the electro-optical panel, and a sound-production frame that is attached to the holding frame, constitutes a sound-production air space at the rear of the holding frame, and holds a sound-production unit. The holding frame is provided with an internal sound-guiding path that is connected to the inside of the sound-production air space and opens to the outside.

Abstract: Normally a speaker is used by attaching to a sealed or semi-sealed cabinet so that vibration generated at the front and the back of a diaphragm does not mutually interfere. Therefore, a certain depth and a volume are necessary, and in a limited location such as a front panel of a device, there is a case that it cannot be attached to the most suitable position for a listener. As a means to solve that, a method that a speaker sound at a distant position is led to a front panel by a waveguide is practically used. However, still it has limitations in depth and attaching position, and good results cannot be obtained also in efficiency. A speaker is attached so that a sound generated at the front of the speaker attached to a cabinet is led to a plane such as a front panel of a device by a waveguide, and the opening surface of the waveguide is almost perpendicular to the plane.

Abstract: A mounting panel for attaching a projection device to an overhead structure or standard grid ceiling includes a mounting panel attachable to a projection device and to a number of accessories. The mounting panel is attachable to a plurality of speakers, an amplifier, and a power rough in, creating one ceiling installed video projection device. The mounting panel for attaching a projection device reduces installation work in a standard grid ceiling and provides a pleasant appearance for the projector and accessories.

Abstract: A method and system (50) for inducing multi-frequency vibrations in a vibration propagating structure, for example a seat (52), is disclosed. The system is comprised of an acoustic vibration transducer unit (12) mounted on a relatively flat and rigid surface (54?) such that the direction of movement of an actuating element in the unit is parallel to the surface. When the unit is driven by an amplified low frequency audio signal a person sitting in the seat experiences vibrations. Additionally, a series of vibration propagating structures, for example a row of seats at a movie theatre, can be connected in series via vibration-propagating members (60) between adjacent seats thereby allowing a single acoustic vibration transducer unit to propagate vibrations to all connected seats.

Abstract: Provided is an acoustic loudspeaker comprising an enclosure and at least first and second loudspeaker drivers. The enclosure comprises at least one tubular sound channel of a substantially constant inside dimension acoustically coupled to the at least first and second loudspeaker drivers. The at least one tubular sound channel comprises a first opening disposed at a first end of the at least one tubular sound channel, a second opening disposed at a second end of the at least one tubular sound channel and a third opening disposed on the at least one tubular sound channel between the first and second ends. The second opening comprises a sound outlet for outputting sound conducted through the enclosure. The enclosure further comprises at least one tuning section disposed within the at least one tubular sound channel between the second and third openings.

Abstract: An acoustic chamber as part of adapter for an appliance. The acoustic chamber is substantially enclosed except at the exterior surface, and is configured to interchangeably receive a plurality of different consumer electronic devices.

Abstract: A loudspeaker enclosure is disclosed which comprises a front baffle for mounting one or more loudspeaker drivers, an inner and an outer side panel bonded to the front baffle forming one side of the loudspeaker enclosure, the inner and the outer side panel not contacting each other, either the inner or the outer side panel independently enclosing the side of the loudspeaker enclosure, both the inner and the outer side panel being at least approximately one half inch in thickness, wherein vibration on the outer side panel is reduced.

Abstract: An acoustic panel (1) has a recess (8) extending part or all way down to a facing (7). A panel loudspeaker (11) may be fixed in the recess or a water sprinkler (14) or other device may be mounted in or above the recess.

Abstract: Vehicle electrical and electronic components are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are metals or conductive non-metals or metal plated non-metals. The micron conductive fibers may be metal fiber or metal plated fiber. Further, the metal plated fiber may be formed by plating metal onto a metal fiber or by plating metal onto a non-metal fiber. Any platable fiber may be used as the core for a non-metal fiber. Superconductor metals may also be used as micron conductive fibers and/or as metal plating onto fibers in the present invention.

Abstract: A method of assembling a prefabricated speaker enclosure and an assembly including left and right side panels, top, front, bottom, and rear panels each having an inner surface with a left channel configured to receive the left side panel and a right channel configured to receive the right, side panel, and a continuous material extending along an outer surface of the top, front, bottom, and rear panels to form a living hinge at each point where two of the top, front, bottom, and rear panels meet.

Abstract: In order to divide the inside space of the cabinet into at least two with a speaker being the center, obtain a plurality of emitted sound energies through openings constructed in each divided sphere, and utilize a cabinet of a loudspeaker apparatus as a sound echo box, a partition wall 4 is disposed at a right angle to a baffle board 2 or a front board 7, passing through the center O of a speaker 3 disposed on the baffle board 2 or the front board 7 of the cabinet 6, and divides the inside space of the cabinet 6 into at least two of an upper chamber 11U and a lower chamber 11D, so that sound energies are emitted from openings 8 and 9 which are provided in each chamber of 11D and 11U, respectively.

Abstract: A portable audio system includes a housing. A docking cradle includes a connector that is electrically coupled to the electronic audio circuit. The docking cradle is mechanically coupled to the housing such that the docking cradle is capable of being rotated horizontally between an open position in which the connector is external to the housing and a closed position.

Abstract: The speaker member includes: a base material; and a resin film layer laminated on the base material through an adhesive layer. The adhesive layer has a heat shrinkage ratio of 0.5 to 1.0%; the resin film layer has a heat shrinkage ratio of 0.8 to 1.3%; and the heat shrinkage ratio of the adhesive layer is smaller than the heat shrinkage ratio of the resin film layer. The method of manufacturing a speaker comprises the steps of: applying a predetermined resin composition on a release material; drying the resin composition, so as to form a resin film layer on the release material; applying a predetermined adhesive on the resin film layer, so as to form an adhesive layer; attaching together the resin film layer formed on the release material and a base material through the adhesive layer, so as to form a laminate; subjecting the laminate to aging; and molding the laminate subjected to aging by using a metal mold having a predetermined shape.

Abstract: An electronic apparatus having a structure in which the inside of a cabinet having a speaker unit incorporated therein is effectively cooled, so that the speaker unit satisfactorily plays back a bass sound in which the speaker cabinet has at least two bass-reflex ducts. One bass-reflex duct is used for air-discharge, through which air in the cabinet is discharged by a fan unit, and another bass-reflex duct is used for air-intake. Thus, the inside of the speaker cabinet is effectively cooled while making use of the bass-reflex effect.

Abstract: A speaker enclosure having a substantially seamless rigid outer skin, a middle sound absorbing layer, and a substantially seamless inner skin results in a lightweight speaker having sound absorbing characteristics. The speaker enclosure is comprised of two basic parts, a box section and a baffle section where each of these sections include a rigid outer skin, the middle sound absorbing layer and a seamless inner skin and are made according to the same method. The outer skin is formed from a layer of sheet molding compound, the middle sound absorbing layer includes pieces of honeycomb material, and the inner skin is formed from a layer of sheet molding compound. The layers of material are placed into a mold and then cured through vacuum bagging and heating thereby producing a strong, lightweight speaker enclosure made of materials which attenuate the transmission and retransmission of errant sound waves in the enclosure thereby reducing distortion of the sound signal produced by the speaker.