Abstract: A speaker and a speaker-box using the same is provided in the present disclosure. The speaker includes a basket and a vibration system. The vibration system includes a diaphragm fixedly connected to the basket. The diaphragm includes a body part and a fixed part bent and extended from the edge of the body part to the basket, the basket includes a side wall encircling the receiving space, the side wall includes an upper surface opposite to the body part and an outer side surface extended from the outer edge of the upper surface, and the upper surface encircles an opening communicated with the receiving space; the body part covers the opening and is fixed with the upper surface, and the fixed part is extended along the outer side surface and fixed with the outer side surface.

Abstract: This electroacoustic conversion chain comprising at least one loudspeaker, this loudspeaker comprising means for generating a magnetic field in a magnetic circuit having an air gap and a membrane secured to turns of a conducting material which may move in this air gap, is characterized in that it comprises at least one control module comprising at least one input for conveying a signal to be broadcast and at least one output connected to a turn, the control module being able to apply to said or each output an excitation signal depending on the position of at least one turn relatively to the air gap.

Abstract: Disclosed is a vibration sound-producing apparatus. A sound output aperture of the vibration sound-producing apparatus is provided at a lateral surface. A diaphragm corresponds to the position of the sound output aperture. A flat sound coil is perpendicular to the diaphragm. A magnet is parallel to the sound coil. The vibrating direction of the sound coil avoids a thickness direction. The vibrating direction of the magnet and a mass block also avoids the thickness direction. The mass block is fixedly joined to a housing via a flexible piece. This facilitates reduced product thickness, increased product performance, and a simplified product production process. Therefore, the vibration sound-producing apparatus of the present invention has the advantages of a great thickness-reduced design, great performance, and simple assembly.

Abstract: Disclosed is a micro loudspeaker, which comprises a magnetic circuit system, a vibration system and a support system. The magnetic circuit system comprises a yoke, and a magnet and a washer accommodated within the yoke. The vibration system comprises a diaphragm and a voice coil adhesively fixed to the diaphragm. The support system comprises a front cover, and a housing matched and combined with the front cover. The housing comprises a bottom wall and a side wall. The bottom wall is provided with a mounting portion accommodating the magnetic circuit system, and is also provided with an assembly plane for assembly with a terminal. A height difference is provided between a position of the bottom wall of the housing corresponding to the assembly plane and a position of the side wall of the housing corresponding to the assembly plane, so as to cooperatively form an avoidance inclined surface.

Abstract: A loudspeaker module for a hearing device has a loudspeaker, which has a loudspeaker diaphragm and a drive for the loudspeaker diaphragm, and a housing, in which the loudspeaker is arranged. Furthermore, the loudspeaker module contains an antenna unit, which has an antenna coil having a coil axis, a tubular coil core, which forms a sound channel, and an antenna base plate, in which a sound passage opening that opens into the sound channel is formed. The antenna coil, the coil core and the antenna base plate in this case prescribe an antenna characteristic of the antenna unit. The side wall of the housing on the diaphragm side is in this case formed by the antenna base plate.

Abstract: The present invention provides an apparatus and methods to deliver audible acoustic sound to the brain through bone conduction and to terminate snoring and sleep apnea. The apparatus comprises a control module and a device that measures signs of the snoring and the sleep apnea and generates the audible acoustic sound to arouse a subject. The device is reversibly attachable to a part of a head overlying a skull of the subject and uses a composite sensor comprising a reflectance pulse oximeter and a vibration sensor for the measurement and an acoustic speaker for generation of the sound. The device drives the acoustic speaker to produce human-conversational sound and non-human sound.

Abstract: An apparatus includes at least one load and a plurality of armatures, each including a permanent magnet, which are coupled to the at least one load to cause the at least one load to move. The apparatus also includes a common stator that defines an air gap within which the plurality of armatures is disposed. The common stator is configured for creating magnetic flux across the air gap for the armatures to interact with, thereby to drive motion of the at least one load.

Abstract: A diaphragm for a loudspeaker may include a continuous primary diaphragm having an upper surface and a lower surface, where the primary diaphragm comprises a ring-shaped, flat region having an inner diameter and an outer diameter. The diaphragm may also include a reinforcing ring attached to the upper surface of the primary diaphragm, where the reinforcing ring has an inside diameter and an outside diameter, and where the reinforcing ring is attached to the upper surface of the primary diaphragm such that the inside diameter of the reinforcing ring coincides with the inner diameter of the flat region.

Abstract: A long stroke speaker is provided in the present disclosure. The long stroke speaker includes a shell, a magnetic system received in the shell, and a vibrating system. The vibrating system includes a membrane and a coil assembly connecting to the membrane for driving the membrane to vibrate. The membrane includes a membrane body and a periphery surrounding the membrane body. The periphery includes a first periphery part with a first protrusion portion protruding away from the magnetic system, and a second periphery part with a second protrusion portion protruding towards the magnetic system.

Abstract: The present invention relates to a compact and robust hybrid receiver comprising a moving coil type receiver and one or more moving armature type receivers, wherein the moving coil type receiver and the moving armature type receiver, at least partly, share a common magnetic circuit.

Abstract: A microspeaker includes a frame and a diaphragm having length sides that are longer than its width sides. A magnet is positioned below the diaphragm. A yoke includes a base portion positioned below the magnet and sidewalls which extend from the base portion, the yoke sidewalls positioned only along a length dimension of the magnet. A voice coil includes an upper end attached to a bottom face of the diaphragm and a lower end positioned within a gap formed between the length dimension of the magnet and the yoke sidewalls. A first suspension member is attached to the length sides and the width sides of the diaphragm and the frame. The first suspension member is within a first plane. A second suspension member is attached to the lower end of the voice coil and the frame. The second suspension member is in a second plane different from the first plane.

Abstract: The technology described in the document can be embodied in a speaker that includes one or more drivers, and an acoustic horn that includes a first side panel and a second side panel. Edges of the first and second side panels defines an opening for receiving acoustic outputs from one or more drivers. The speaker also includes a manifold disposed between the opening and the one or more drivers, the manifold including a plurality of acoustic passages for connecting the opening to each of the one or more drivers, and an adaptor. The adaptor is disposed between the manifold and the acoustic horn, and includes multiple apertures for the plurality of acoustic passages. The adaptor is configured to conform to a profile of the opening while maintaining a seal between the acoustic horn and the plurality of acoustic passages.

Abstract: A diaphragm for a loudspeaker may include a continuous primary diaphragm having an upper surface and a lower surface, where the primary diaphragm comprises a ring-shaped, flat region having an inner diameter and an outer diameter. The diaphragm may also include a reinforcing ring attached to the upper surface of the primary diaphragm, where the reinforcing ring has an inside diameter and an outside diameter, and where the reinforcing ring is attached to the upper surface of the primary diaphragm such that the inside diameter of the reinforcing ring coincides with the inner diameter of the flat region.

Abstract: A method of fabricating a damper is described. A printed pattern is formed on a screen, the printed pattern having an outer edge and a non-circular inner edge. A fiber fabric is soaked in a resin bath, and has a damper forming region provided with a predetermined coating region. The fiber fabric is placed below the screen so that the printed pattern is aligned with the predetermined coating region. A coating material is then poured over the screen so as to flow through a gap region of the printed pattern onto the predetermined coating region. After the fiber fabric has undergone baking, the inner edge of the predetermined coating region can be converted from the non-circular shape to a predetermined shape. The coating material thereby is distributed over the surface of the damper in a substantially regular and uniform manner.

Abstract: There is disclosed a noise reducing headphone including a headphone housing, a microphone generate an ambient audio signal representative of ambient noise, a processor to generate an anti-sound signal based on the ambient audio signal. A first speaker is disposed within the headphone housing to convert the anti-sound signal into anti-sound. A second speaker is disposed within the headphone housing to convert an audio input signal into high fidelity sound. At least one characteristic of the second speaker is different from a corresponding characteristic of the first speaker.

Abstract: A speaker is provided in the present disclosure. The speaker includes a magnetic system and a vibrating system placed on the magnetic system, the vibrating system includes a membrane. The membrane comprises a main membrane body and a periphery connected to an outer edge of the main membrane body, the periphery is adjacent to the magnetic system and a ring-shaped structure. The periphery comprises a first connecting portion connected to the main membrane body, a second connecting portion for fixing the membrane, and a middle connecting portion connected between the first connecting portion and the second connecting portion, the middle connecting portion bends perpendicularly to a vibrating direction of the main membrane body.

Abstract: An edge has an inner circumferential portion connected to an outer circumferential portion of a diaphragm, and is made of an annular elastic deformation member. A frame is connected to an outer circumferential portion of the edge, and supports the diaphragm through the edge. A magnetic circuit displaces the diaphragm in a first direction that is a sound emission direction and in a second direction that is an opposite direction to the sound emission direction, and vibrates the diaphragm. In a region between the inner circumferential portion and outer circumferential portion of the edge, the edge includes a rib, which is protruded in the second direction, and limits a stroke of the diaphragm in the second direction.

Abstract: An edge for a speaker making it possible to decrease a thickness of the speaker and achieve cost reduction by using no damper without lowering a sound quality is provided. The edge of a speaker is in a sheet-like and ring form and includes an outer fixing part formed on its outer peripheral part for fixing the edge to the frame (supporting member), an inner fixing part formed on its inner peripheral part for fixing the edge to the diaphragm, and a sheet-like part lying between the inner fixing part and the outer fixing part (connecting the inner fixing part and the outer fixing part). The respective convex portions are formed at least on both surfaces of the sheet-like part at the boundary portion of the sheet-like part and the outer fixing part, thereby forming the control parts for controlling the vibration of the diaphragm.

Abstract: An electromagnetic transducer is disclosed. The electromagnetic transducer includes a frame, a diaphragm attached to the frame, a magnetic circuit part receiving in the frame with a magnetic gap, a voice coil partially inserted into the magnetic gap for driving the diaphragm, and an elastic member including a first arm attached to the diaphragm and at least a pair of second arms extending outwards from the first arm and partially attached to the frame. Each of the second arms has a first part, a stress-relieving portion connected to the first part and protruding outwards from a plane where the first part is disposed in, and a second part connected with the stress-relieving portion and the first arm. The first parts are coplanar with the second part. The stress-relieving portion could enhance the flexibility of the second arm so that the second arm is not easy to be broken.

Abstract: An electronic apparatus (100) includes a first detachable speaker unit (120) including a first speaker having a relatively high directivity, and a second detachable speaker unit (130) including a second speaker having a relatively low directivity. The electronic apparatus (100) further includes a body unit (an electronic apparatus body (110)) provided with a slot (113) in which any one of the first detachable speaker unit (120) and the second detachable speaker unit (130) is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

Abstract: A loudspeaker includes an acoustic diaphragm, an oscillatory force source, a lever coupling the oscillatory force source to the acoustic diaphragm, and a pivot coupled to the lever such that the lever moves in an arcuate path about the pivot when the oscillatory force source applies a force to the lever. The pivot includes at least one torsion bushing. The at least one torsion bushing includes a first member, a second member coupled to the lever and movable relative to the first member, and an elastomeric member coupling the first member to the second member.

Abstract: A flat subwoofer is provided comprising a driver in which a coil is arranged in an air gap in the driver, which coil is connected to a membrane, where the driver is arranged on a chassis, wherein the membrane comprises two interconnected parts, a forward membrane part and rear membrane part, where both membrane parts are substantially symmetrical around an axis perpendicular to the membranes plane, where each membrane part has an outer and an inner periphery where the forward membrane part along an outer periphery is connected to the chassis by a surround, and where the rear membrane part is connected to a spring member which spring member at least partly surrounds the driver.

Abstract: A one-cabinet stereo loudspeaker, wherein at least first and second loudspeaker units (LL, LR) are arranged in a cabinet structure (CB) so as to radiate sound with at least three lobes of the first acoustic signal (L) alternating with respect to horizontal angle with at least three lobes of the second acoustic signal (R). This provides a spacious sound experience at all locations around the loudspeaker.

Abstract: Digital loudspeaker comprising a support, a plurality of first membranes suspended on the support, said first membranes being bistable, and said loudspeaker comprising actuator for each of the first membranes that can change each of the first membranes from a first stable state to a second stable state and vice versa, and a controller for controlling said first actuator.

Abstract: A speaker assembly membrane including a sound radiating surface (SRS) having a first material; a substantially planar SRS ring positioned concentrically outward from the SRS and having a second material; and a suspension member positioned concentrically outward from the SRS ring and having a third material. The second material is stiffer than the first material and the third material to locally stiffen an area surrounding the SRS and improve a breaking mode frequency of the membrane. In another embodiment, the speaker assembly membrane may include a diaphragm having a first material density; a substantially planar stiffening ring extending radially outward from an outer edge of the diaphragm and having a second material density; and a suspension member extending radially outward from an outer edge of the stiffening ring and having a third material density. The second material density is greater than the first material density and the third material density.

Abstract: A dual-frequency coaxial earphone includes an earphone housing, a moving coil loudspeaker unit and a balanced armature loudspeaker unit. The earphone housing has a receiving space and an acoustic output orifice. The receiving space communicates with the acoustic output orifice. The moving coil loudspeaker unit is assembled in the receiving space and includes a moving coil vibrating diaphragm and an acoustic transmitting member. The moving coil vibrating diaphragm is assembled to face the acoustic output orifice and includes a central vibrating portion. The acoustic transmitting member includes an acoustic transmitting hole corresponding to the central vibrating portion. The balanced armature loudspeaker corresponds to the moving coil loudspeaker unit and includes an armature vibrating diaphragm.

Abstract: Ring-shaped membrane for an electro-acoustical loudspeaker, where said membrane comprises two or more dome-shaped annulus concentrically arranged around a central portion through which an imaginary axis of symmetry passes, where an outer periphery of said membrane is suitable to be attached to a surround; where the central portion is attached to a tower, which again is fastened to the loudspeakers driver, wherein the angle between a plane being perpendicular to the axis of symmetry and the attachment of the membrane to the surround resp. the tower is in the interval 0° to 40°, most preferred around 30°.

Abstract: A magnetic assembly for a speaker is disclosed. The magnetic assembly includes a yoke, a magnet module installed on the yoke, and a pole module mounted on the magnet module. The magnet module includes a main magnet, a first secondary magnet and a second secondary magnet, the pole module includes a main pole plate, a first secondary pole plate and a second secondary pole plate. The first secondary pole plate includes a first pole protrusion extending perpendicularly from an edge thereof, and the second secondary pole plate includes a second pole protrusion extending perpendicularly from an edge thereof. The first pole protrusion and the second pole protrusion are located facing two opposite side walls of the main magnet respectively.

Abstract: There are provided a sound generator with less peaks and dips in sound-pressure frequency characteristics, and a sound-generating apparatus which employs the sound generator. A sound generator and a sound-generating apparatus using the same are provided, wherein the sound generator includes at least a vibration plate, and a plurality of piezoelectric elements attached to the vibration plate so as to be spaced from each other to cause the vibration plate to vibrate. The plurality of piezoelectric elements includes piezoelectric elements having at least two different thicknesses. The piezoelectric elements having at least two different thicknesses are disposed in two directions that cross each other in a main surface of the vibration plate. Accordingly, it is possible to achieve a sound generator, as well as a sound-generating apparatus which have less peaks and dips in sound-pressure frequency characteristics.

Abstract: An innovative magnetic design for speakers is disclosed. The innovative magnetic design of the present invention comprises an upper magnetic portion, a lower magnetic portion, at least one magnetic piece and two or more magnets. Either the upper magnetic portion or the lower magnetic portion has the form of a plate. A magnet is disposed between the upper magnetic portion and the magnetic piece, and another magnet is disposed between the lower magnetic portion and the magnetic piece. When an AC current flows through the voice coil, a magnetic force induced by the current would move the voice coil and diaphragm longitudinally, thereby generating audible sounds. In addition, we only have to increase the length of magnets 4 to increase their volume so as to increase the magnetic force and hence offset the decrease in the magnetic force due to a thinner configuration.

Abstract: A speaker driver including a frame and a magnet assembly positioned within the frame. A sound radiating surface may be suspended over the magnet assembly. The sound radiating surface may include a top face and a bottom face, and the bottom face may face the magnet assembly. A suspension member may suspend the sound radiating surface over the magnet assembly. The suspension member may include a top side connected to the bottom face of the sound radiating surface and a bottom side connected to assembly support member that is separate from the magnet assembly. A voice coil extends from the bottom face of the sound radiating surface.

Abstract: An electroacoustic driver includes a diaphragm, a diaphragm drive system and a diaphragm suspension. The diaphragm system is configured to subject the diaphragm to a motion, wherein the diaphragm suspension is configured to guide the diaphragm. The diaphragm drive system includes an active element configured to actively influence the motion of the diaphragm.

Abstract: Electro-dynamic transducer (1) including: a main magnetic circuit (2) defining an air gap (15), a moving part (16) comprising a dome shaped diaphragm (17) fixed to a movable coil (18) diving into the air gap (15); a support (20) to which the moving part (16) is suspended; a suspension (26) linking the moving part (16) and the support (20); wherein the support (20) at least partly extends in an inner volume inside the moving part (16), wherein the suspension (26) is fixed, by an outer periphery, to an inner face of the moving part (16), and wherein the suspension (26) is made of an acoustically non emitting material.

Abstract: An apparatus includes a suspension element coupling a first rigid element to a second rigid element such that the first rigid element is movable in a reciprocating manner relative to the second rigid element. The suspension element includes radial features, some of which may have radial segments of opposite concavity. The segments with opposite concavity provide added stiffness in the primary axis of vibration and may contribute to a more symmetrical force-deflection relationship.

Abstract: It is possible to provide a vibrator configured so as to prevent the leakage of an adhesive out from between a frame and a diaphragm member and a portable information terminal having the vibrator. The vibrator includes: frame 11; diaphragm member 12 vibratably bonded to frame 11; and adhesive 21 used to bond the frame to the diaphragm member. To store adhesive 21, the vibrator further includes gap 22 which is formed between surfaces of frame 11 and diaphragm member 12 facing each other at bonded part 20 where frame 11 is bonded to diaphragm member 12 with adhesive 21, and the gap being used.

Abstract: An electrostatic loudspeaker comprises a membrane structure and an electrode structure. The membrane structure comprises a central membrane portion and a circumferential membrane portion. The electrode structure is configured to electrostatically interact with the membrane structure for causing a movement of the membrane structure along an axis of movement. The electrode structure comprises a circumferential electrode portion and an opening, the circumferential electrode portion being substantially aligned to the circumferential membrane portion and the opening being substantially aligned to the central membrane portion with respect to a direction parallel to the axis of movement. In an end position of the movement of the membrane structure, the central membrane portion is configured to extend at least partially through the opening. A method for operating an electrostatic loudspeaker and a method for manufacturing an electrostatic loudspeaker are also described.

Abstract: A surround that is generally arched in shape and that includes a radial exterior flange that extends downward from exterior side of the arched portion of the surround and that adhesively attaches to the inner wall or edge of the mounting ring of the frame or the loudspeaker.

Abstract: The present invention relates to a high-output microspeaker, and more particularly, to a high-output microspeaker which includes a damper for preventing lateral vibrations of a diaphragm.

Abstract: A low profile loudspeaker transducer is presented with an arrangement of placing the motor up near or into the inside concave portion of a convex dome or inverted convex cone diaphragm. In some preferred embodiments the low profile structure is facilitated by an inverted placement of the spider suspension above the plane of the surround suspension to stabilize the voice coil during excursion while supporting a low profile structure. Additionally, in numerous embodiments a coupling structure is utilized between the voice coil former and the diaphragm to create a broad surface area connection to the diaphragm to create a stiffer structure and minimizing breakup modes and creating a more robust mechanical structure to withstand greater output capability.

Abstract: An audio playback device is provided. The audio playback device includes a magnetic module, an annular armature, a coil module and a diaphragm. The magnetic module includes a magnetic source and two yokes each connected to one of two magnetic poles generated by the magnetic source and extends to form a magnetic field. The annular armature includes a first, a second, a third and a fourth arms that form a hollow area. At least part of the first arm is located in the magnetic area. The coil module is winded on the second arm and generates two varying electro-magnetic poles according to an alternating current data signal. The annular armature vibrates according to a relation of the two varying electro-magnetic poles and the magnetic field. The diaphragm is connected to the annular armature through a driving rod to vibrate according to the annular armature to generate a sound wave.

Abstract: An improved mid to high-frequency loudspeaker of the type having a central dome diaphragm having an outer periphery, and in one embodiment an outer ring-radiator diaphragm portion defining an inner periphery and an outer periphery, the ring-radiator diaphragm being attached at its inner periphery to an armature voice coil assembly and at its outer periphery to a diaphragm chassis in a first plane.

Abstract: When a diaphragm formed in the shape of an oval is held by a holding member, an electrostatic electroacoustic transducer which allows stable tension without a diaphragm flexing is provided. In the electrostatic electroacoustic transducer, a diaphragm 11 and a diaphragm holding member 12 are formed in the shape of an oval, and is provided with a corrector member 21 which presses inwardly from outside both side ends on a major axis of the oval diaphragm holding member, and opens and deforms outwardly a pair of opposed long sides 12a and 12b on a minor axis side of the diaphragm holding member.

Abstract: An ultrasonic audio speaker includes a backing plate comprising a first major surface and a conductive region, the backing plate further comprising a plurality of textural elements disposed on the first major surface. A flexible layer disposed adjacent the first major surface of the backing plate includes a conductive region and an insulative region, wherein the flexible layer is disposed adjacent the backing plate such that the insulative region is positioned between the backing plate and the conductive region of the flexible layer, and such that there is a volume of air between the flexible layer and surfaces of the textural elements.

Abstract: A micro-speaker includes a frame, a diaphragm mounted on the frame, a magnetic system received in the frame and defining a magnetic gap, a voice coil driving the diaphragm and suspended in the magnetic gap, and a suspension having a body portion and at least a pair of connecting portion extending from the body portion and mounted on the frame. The body portion of the suspension connects with the voice coil and far away from the diaphragm for cooperating with the diaphragm to fix the coil firmly, thereby ensuring the vibrating of the diaphragm is stable and balanced.

Abstract: A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance.

Abstract: Electro-dynamic transducer including a main magnetic circuit defining an air gap, a moving part comprising a dome shaped diaphragm and a movable coil fixed thereto and diving into the air gap; a support to which the moving part is suspended; and a suspension linking the moving part and the support; wherein the suspension is floating with respect of the support, allowing a radial degree of freedom.

Abstract: A piezoelectric acoustic transducer (1) of the present invention includes a lower frame (78), a lower speaker circuit (20), an upper frame (77), an upper speaker circuit (10), and a surround (76). The upper speaker circuit (10) has a piezoelectric diaphragm (14) in which piezoelectric elements (16, 17), each having a structure that flat plate electrodes are disposed on top and bottom of a piezoelectric member, are mounted on top and bottom surfaces of a board (15). The lower speaker circuit (20) has a piezoelectric diaphragm (24) in which piezoelectric elements (26, 27), each having the same structure, are mounted on a top surface and a bottom surface of a board (25). The piezoelectric diaphragms (14, 24) are coupled to each other via coupling members (74, 75). At an application of a voltage, the piezoelectric diaphragms (14, 24) are caused to curve in directions opposite to each other.

Abstract: A joint speaker surround and gasket. The speaker surround of the joint speaker surround and gasket is formed of a surround material and has an inner edge defining a speaker cone aperture shaped to match a speaker cone and an outer edge portion shaped to match a housing. The gasket of the joint speaker surround and gasket is formed of a gasket material. The gasket is integrally bonded to the outer edge portion of the speaker surround.

Abstract: Embodiments are provided for configurations of a loudspeaker. The loudspeaker may include a frame, a magnetic structure having a magnetic gap, a voice coil suspended within the magnetic gap, a first suspension element, a diaphragm, and a second suspension element. The first suspension element may have an inner rim and an outer rim attached to the frame. The diaphragm may have an outer portion and a continuous central portion attached to the voice coil via a first coupler. The outer portion of the diaphragm may be attached to the inner rim of the first suspension element. The second suspension element may have an inner rim and an outer rim attached to the frame. The inner rime of the second suspension element may be attached to the diaphragm via a second coupler along a circumferential middle section of the diaphragm between the continuous central portion and outer portion of the diaphragm.

Abstract: Embodiments are provided for configurations of a loudspeaker and assembly of the loudspeaker. The loudspeaker configuration may include a circumferential spacer element having a first surface and a second surface. The first surface may be attached to an outer rim of a first suspension element. An inner rim of the first suspension element may be attached to an outer rim of a diaphragm. A central portion of the diaphragm may be coupled to a voice coil. The second surface may be attached to an outer rim of a second suspension element. An inner rim of the second suspension element may be coupled to a lower surface of the diaphragm. The circumferential spacer element has a structural shape configured to be coupled to a loudspeaker frame such that the voice coil may be suspended at least partially within a magnetic gap of a magnetic structure of the loudspeaker.