Abstract: The present application discloses a heat dissipation device. The heat dissipation device includes a heating element, a sounding device and a heat conductor. The speaker unit includes a diaphragm separating the accommodation space into a front cavity and a back cavity. The housing body is provided with first sound outlet holes communicating to the front cavity. Heat generated by the heating element is transferred outside along with an air flow in the front cavity. The heat dissipation device provided by the present application has the advantages of being good in heat dissipation effect and exquisite and compact in structure and capable of meeting the demand of miniaturization of the heat dissipation device.

Abstract: An acoustic device including a first passive radiator structure and a second passive radiator structure is provided. The first passive radiator structure includes a passive diaphragm mechanically coupled to a first enclosure member via a first flexible suspension element, and is configured to vibrate relative to the first enclosure member. The second passive radiator structure includes a second enclosure member, and is configured to vibrate relative to the first enclosure member. The second passive radiator structure further includes a second flexible suspension element mechanically coupled to the first enclosure member and the second enclosure member. The second passive radiator structure further includes an active electro-acoustic transducer mechanically coupled to the second enclosure member. The second passive radiator structure moves when the active electro-acoustic transducer vibrates.

Abstract: An acoustic metamaterial (AMM) passive impedance matching device for headphone-type devices for matching the complex acoustic impedance load of a human ear to enhance acoustic performance of a headphone is disclosed. The device includes shunt compliance chambers stacked concentrically relative to one another from an upper end to a lower end. Each of the shunt compliance chambers includes side connecting inductive channels positioned annularly around a circumference of at least one of the shunt compliance chambers. The shunt compliance chambers define a predetermined volume of air. The inductive channels connect the shunt compliance chambers to the main headphone volume, generating an acoustic resistance and reactive impedance that matches the complex acoustic impedance load of the human ear canal. The AMM device also includes an inductive channel, as a design parameter, extending from the main headphone volume to the ambient air serving as an additional resistive and reactive load.

Abstract: A passive radiator assembly includes a surrounding unit and an inner radiator cone. The surrounding unit includes a top layer surrounding an axis, and a bottom layer being spaced apart from and disposed under the top layer, and surrounding the axis. The inner radiator cone interconnects the top layer and the bottom layer of the surrounding unit.

Abstract: A speaker device includes a housing body, a speaker driver and a passive radiator. The housing body is formed with a first sound hole and a second sound hole respectively opening in two opposite directions. The speaker driver is disposed in the housing body, is located adjacent to the first sound hole, and is adapted to generate sound. The passive radiator is disposed in the housing body, is located adjacent to the second sound hole, and is adapted to generate sound. The first sound hole and the second sound hole are adapted for respectively allowing the sound generated by the speaker driver and the sound generated by the passive radiator to travel out from the housing body respectively in two opposite directions therethrough.

Abstract: Embodiments of the present disclosure provide a display apparatus and an electromagnetic actuator, the display apparatus includes a display structure, a sound-emitting substrate, at least one electromagnetic actuator and a stabilizer; where one side of the sound-emitting substrate is attached to the display structure, and the electromagnetic actuator is fixedly attached to the other side of the sound-emitting substrate through the stabilizer; the electromagnetic actuator includes a bracket and a plurality of flexible support feet extending away from the bracket. The electromagnetic actuator is fixedly arranged on the sound-emitting substrate through the stabilizer, and the bracket receives the electromagnetic actuator, the plurality of flexible support feet can keep the electromagnetic actuator stable during the vibration process of the electromagnetic actuator, which helps avoid position shift of the electromagnetic actuator under long-time working.

Abstract: A passive diaphragm assembly includes a counterweight member, a first diaphragm and a second diaphragm. The first diaphragm and the second diaphragm are spaced apart from each other, are connected respectively to opposite ends of the counterweight member, and cooperate with the counterweight member to define an air space thereamong.

Abstract: A speaker includes a sound box, a speaker module, and a heat pipe. The sound box includes a first opening and a second opening. The speaker module is hermetically connected to the first opening. The heat pipe is hermetically connected to the second opening. The heat pipe includes a first end and a second end. The first end is located in the sound box. The second end is exposed to the second opening. The speaker module is fixedly connected to at least part of an outer wall of the heat pipe. In the speaker, a hollow heat pipe is fixedly connected to the speaker module, and vibration of the speaker module drives air in the heat pipe to flow to dissipate heat from the heat pipe. Further, the cold heat pipe carries heat away from the speaker module through heat transfer, thereby dissipating heat from the speaker.

Abstract: Provided is a display device that includes a display on which an image is displayed on a display surface, a rear cover arranged on a back surface side of the display, and an upper speaker and a lower speaker arranged between the display and the rear cover and located so as to be separated vertically from each other, in which an upper slit functioning as a passage hole for sound output from the upper speaker is located above the display, a lower slit functioning as a passage hole for sound output from the lower speaker is located below the display, and a vertical width of the lower slit is larger than a vertical width of the upper slit.

Abstract: The present invention relates to a speaker box (1) having a speaker housing (2) and a speaker (3). The speaker (3) has a speaker chassis (4) having a flange ring (5) on the front side (6) of the speaker (3), and a magnet head (8) on the rear side (7), opposite the flange ring (5), of the speaker (3). The speaker (3) is attached, by way of its flange ring (5), to a metal plate (9) that at least partly covers the speaker housing (2) at the front. For simpler and more effective self-cooling, a section connected to the flange ring (5) and made from metal projects into the speaker housing (2) and forms a channel wall (10) of an air channel (11).

Abstract: A portable speaker system includes a tunnel with at least one internal speaker facing inwardly into the tunnel such that acoustic resonance amplifies desirable frequencies of sounds emitted by the internal speaker. The portable speaker system includes solar panels and is waterproof. A display touch screen permits operation of the speaker system. The portable speaker system is adapted to receive input of audio files from a variety of sources. A non-transitory storage medium permits storage of the audio files and a CPU is programmed to permit playback of audio files in a desired sequence or from a desired live-streaming source. The smart speaker can utilize Bluetooth, Wi-Fi, and/or telecommunication connectivity to receive and/or play audio files, and can queue files from multiple sources for playback.

Abstract: A speaker includes a frame and a partition wall coupled with the frame to form a boundary between an inner chamber and an outer chamber. The frame has an annular sidewall and a top wall. The annular sidewall has a plurality of through holes allowing the inner chamber and the outer chamber in fluid communication.

Abstract: An electronic speaker comprising: a device housing defining an interior cavity and including a sidewall extending around the interior cavity between an upper portion and a lower portion of the device housing; first and second sound channels formed at opposing locations along the sidewall, each of the first and second sound channels comprising a plurality of openings formed through the sidewall; a passive radiator array comprising first and second passive radiators disposed within the interior cavity, spaced apart from each other in an opposing relationship and aligned to project sound through the first and second sound channels; an active driver disposed in the device housing and configured to generate sound in response to an electrical signal, the active driver comprising driver housing disposed at least partially between the first and second passive radiators, a magnet disposed within the driver housing, a voice coil and a diaphragm facing downwards towards the lower surface of the device housing; and an an

Abstract: An acoustic enclosure includes a housing at least partially defining an acoustic chamber for an acoustic radiator. The housing further defines an acoustic opening from the acoustic chamber to a surrounding environment. The acoustic enclosure also has a first acoustic resonator and a second acoustic resonator. The first acoustic resonator and the second acoustic resonator are acoustically coupled with the acoustic chamber in parallel relative to each other. Each of the first acoustic resonator and the second acoustic resonator modifies a frequency response of the acoustic chamber. Loudspeakers can include such an enclosure acoustically excited or driven by an electro-acoustic transducer. As well, an electronic device can include such a loudspeaker.

Abstract: A speaker includes a frame, a first tuning portion, a vibration system and a magnetic circuit system. The frame has a lateral wall, a bottom wall, an accommodation space defined by the lateral wall and the bottom wall and an opening end located at a top end of the accommodation space. The first tuning portion is formed on the lateral wall of the frame. The vibration system is disposed in the accommodation space of the frame and has a vibration film vibrating along an axial direction of the frame. A rear chamber is defined by the vibration film and the bottom wall of the frame. The magnetic circuit system is disposed in the accommodation space of the frame. When the vibration film vibrates, an airflow generated in the rear chamber flows along the first tuning portion on the lateral wall and exits, so as to form a first tuning path.

Abstract: A speaker system includes an outer panel of a vehicle door of a vehicle having a compartment; a panel member that constitutes a part of the vehicle door, the panel member being closer to the compartment than is the outer panel; an inner panel of the vehicle door, the inner panel residing between the outer panel and the panel member to form a first space and a second space, the first space being defined between the panel member and the inner panel, and the second space being defined between the outer panel and the inner panel, wherein the inner panel has a through hole that communicates the first space with the second space; and a speaker mounted to the panel member; wherein: the panel member is mounted to the inner panel; and the panel member together with at least the outer panel constitutes an enclosure for the speaker.

Abstract: An earphone with a first acoustic cavity, a second acoustic cavity, and an electro-acoustic transducer configured to deliver acoustic energy into the first and second acoustic cavities. A port acoustically couples one of the first and second acoustic cavities to a different volume. The port comprises an opening with a mesh structure that is insert molded into the port.

Abstract: An acoustic transformer for use in a headphone to enhance an auditory experience of a listener, includes a disc or plate with acoustic apertures or aperture regions that is located in front of an acoustic driver in an ear cup of the headphone. In an example configuration, one side or area of the acoustic transformer includes multiple, smaller apertures and an opposite side or area of the acoustic transformer includes a lesser number of larger apertures, or a single larger aperture. When the headphone is over the listener's ear the acoustic transformer is juxtaposed between the acoustic driver and the listener, and in an example configuration the smaller apertures are located toward the front of the listener's ear, and the larger aperture is located toward the back of the listener's ear.

Abstract: An earphone includes a speaker unit, a housing that receives the speaker unit therein, and a baffle that is arranged within the housing and supports an opposite surface of the speaker unit, which is opposite to a sound emission surface of the speaker unit, to define a first space between the opposite surface and the baffle. The baffle includes a vent hole through which the first space communicates with a second space that is opposite to the first space with respect to the baffle. A fourth space through which the first space communicates with a third space on a side of the sound emission surface of the speaker unit is defined between a side surface of the speaker unit and an inner surface of the housing.

Abstract: A microphone transducer is provided, the microphone transducer comprising a housing and a transducer assembly supported within the housing and defining an internal acoustic space. The transducer assembly includes a magnet assembly, a diaphragm disposed adjacent the magnet assembly and having a front surface and a rear surface, and a coil attached to the rear surface of the diaphragm and capable of moving relative to the magnet assembly in response to acoustic waves impinging on the front surface. The transducer assembly further includes a primary port establishing acoustic communication between the internal acoustic space and an external cavity at least partially within the housing, and a secondary port located at the front surface of the diaphragm.

Abstract: Embodiments are directed to a sealed pipe-loaded loudspeaker for augmenting low frequency response in a portable electronic device. A loudspeaker transducer is configured to radiate sound directly out of a forward radiation area and incidentally out of a rearward radiation area, and a sealed transmission line forming a closed pipe acoustically coupled to the transducer through which the rearward radiation propagates to produce standing waves corresponding to the dimensions of the closed pipe, wherein resonances apply a loading to a diaphragm element of the transducer to lower its resonance frequency. An acoustical wave front radiates away from the diaphragm element for the direct sound and is emitted outside of the device, and the rearward radiation is not emitted from the device.

Abstract: A headphone includes a driver unit 2, the first housing 4 that forms a first air chamber 11 on a back side of the driver unit 2, the second housing 5 that forms a second air chamber 12 on an opposite side of an inner surface different from an inner surface where the driver unit 2 is provided in the first housing 4, and a damper 61 provided in the second housing 5. In the first housing 4, an opening 44 that communicates between the first air chamber 11 and the second air chamber 12 is formed.

Abstract: A battery powered wireless audio speaker comprising a passive radiator is disclosed. The perimeter portion of the passive radiator is sandwiched between the speaker chassis and the retention gasket that resides between an external overlying perforated cover to firmly secure the passive radiator. The construction is capable of being well suited to enhance and improve integrity to the seal between the passive radiator and the speaker chassis in strenuous environment conditions such as when a speaker is submerged in water.

Abstract: The present invention is directed to a headphone device including zones to separate different frequency ranges for enhancing and improving sound quality. The headphone device includes more than one cavities and second auxiliary holes. The second auxiliary holes are configured for most bass or low-frequency to enter a second cavity through the second auxiliary holes and to have a better frequency division effect and to improve the audio quality of the headphone device.

Abstract: Disclosed is a loudspeaker module which comprises a housing and a loudspeaker unit accommodated in the housing. The housing comprises a front cover, a first housing and a second housing, and a cavity is defined by the front cover, the first housing and the second housing. The loudspeaker unit is fixed in the cavity, and the cavity is divided into a front cavity and a rear cavity by the loudspeaker unit. The front cavity is a cavity defined by the loudspeaker unit, the front cover and the first housing. The loudspeaker unit comprises a vibration system and a magnetic circuit system. The front cover is provided with a chamber corresponding to a mounting position of the loudspeaker unit, and the cavity is isolated from the front cavity and the rear cavity and is provided with a ventilation structure in communication with external environment.

Abstract: A speaker box includes a housing which has a receiving space and a side wall having a sound hole, and a sound generator received in the receiving space and including a diaphragm including a dome and a periphery connected to the dome. The periphery includes a near-end which is near the sounding hole and a far-end which is farther the sounding hole. A compliance of the near-end is less than a compliance of the far-end.

Abstract: Speaker protection systems can be configured to protect audio speakers from falls. In some embodiments, systems include a bottom cap coupled to a bottom portion of the speaker device. Systems can also include a top cap coupled to a top portion of the speaker device. The top cap can cover part of a top surface of the speaker device such that the top cap is configured to resist downward dislodgement of the top cylindrical cap. The top cap can be rotatably coupled to the bottom cap. Embodiments can enable variable shock absorption with resistance to deformation that increases as the magnitude of the deformation increases. This approach can maximize odds of speakers “surviving” falls from substantial heights.

Abstract: [Object] To make it possible to improve an acoustic characteristic. [Solution] There is provided a headphone including a driver unit that includes a diaphragm, a housing that accommodates the driver unit, and forms a sealed-type front-face air chamber spatially blocked from an outside except for an opening for sound output on a front face side provided with the diaphragm of the driver unit, and an acoustic tube whose end is directly connected to a first ventilation hole provided in a frame of the driver unit, and that spatially connects a driver-unit rear-face air chamber formed between the frame and the diaphragm with the outside of the driver unit via a tube.

Abstract: A MEMS speaker that may include a membrane positioned in a first plane, wherein the membrane may be configured to oscillate at a first frequency thereby generating an ultrasonic acoustic signal; and an acoustic modulator that may include a blind and a shutter; wherein the blind may be positioned in a second plane; wherein the shutter may be positioned in a third plane; wherein the first plane, the second plane and the third plane may be substantially separated from each other; and wherein the acoustic modulator may be configured to (a) receive or generate a shutter control signal and a blind control signal, and (b) modulate, in response to the shutter control signal and the blind control signal, the ultrasonic acoustic signal such that an audio signal may be generated.

Abstract: The present disclosure discloses a speaker box. The speaker box includes a housing which has a receiving space and a side wall having a sound hole, and a sound generator received in the receiving space and including a diaphragm including a dome and a periphery connected to the dome. The periphery includes a near-end which is near the sounding hole and a far-end which is farther the sounding hole. A width of the near-end of the periphery perpendicular to a vibration direction of the diaphragm is smaller than a width of the far-end of the periphery perpendicular to the vibration direction.

Abstract: A high bass speaker monomer comprises a framework, a magnetic air loop component and a vibration membrane. The frame work is disposed at a central position of the frame work. A hollow structure is formed on the framework and around the magnetic air loop component. An isolation ring formed on the framework divides the hollow structure into at least one high tone region and bass region respectively located near and far away from the magnetic air loop component. The vibration membrane is disposed on the framework and covers the magnetic air loop component and the two regions. The high bass speaker monomer is disposed in a casing body to construct a high bass earphone structure. The isolation ring separates the high tone from the low tone to prevent them from mixing. Therefore, the sound of the earphone is more stable and the quality of the sound is better.

Abstract: A display device includes: a first display panel and a second display panel disposed to face each other; a backlight unit interposed between the first display panel and the second display panel; and a speaker unit including a first piezoelectric module and a second piezoelectric module sharing an enclosure and disposed to face each other, a first output unit configured to output sound produced from the first piezoelectric module, and a second output unit configured to output sound produced from the second piezoelectric module.

Abstract: This application relates to a wearable speaker system with passive radiators and active driver speakers that are connected by tubes. Acoustic energy from each active driver speaker is projected through the tubes to each respective passive radiator, causing the passive radiators to vibrate and resonate in response to the acoustic energy to project the desired audible sounds to a user.

Abstract: A loudspeaker system has a loudspeaker housing that comprises at least a first and a second housing chamber. The loudspeaker system has a bass loudspeaker that is mounted on a partition between the first housing chamber and the second housing chamber, wherein the back of the bass loudspeaker has the first housing chamber present and the front of the bass loudspeaker has the second housing chamber present. The partition contains at least one bass reflex opening. A phase correction element is arranged at the front of the bass loudspeaker in the second housing chamber. The bass reflex opening opens into the second housing chamber and is arranged in a region adjacent to the phase correction element.

Abstract: A loudspeaker enclosure defined by one or more panels housing a drive unit. The drive unit includes a coil, a diaphragm, and a magnet. The magnet is decoupled from the one or more panels of the loudspeaker enclosure. Sound is generated by the movement of the diaphragm and complementary movement of the magnet, on application of an appropriate electrical signal to the coil. The moving diaphragm acts against a first volume of air within the enclosure, while the movement of a surface coupled to the magnet, acts against a second air volume, different from the first volume. The surface coupled to the magnet is decoupled from the one or more panels of the loudspeaker enclosure.

Abstract: The present invention relates to a loudspeaker including a first driver, which is configured to produce a first frequency band and a corresponding first acoustic axis, a second driver, which is configured to produce a second frequency band, which is different from the first frequency band but may overlap in a crossover region, and which second frequency band has a second acoustic axis, and an enclosure enclosing said drivers and comprising a three dimensional wave guide positioned on a front surface of the enclosure and around the first driver.

Abstract: The present invention provides an improved loudspeaker enclosure comprising two opposing end sections arranged at a distance from each other and enclosing sections which connect the end sections over said distance, wherein the inner volume of the enclosure is defined by said sections. The enclosure also has a reflex port which comprises a reflex opening which is provided to the enclosure and adapted to exhaust internal pressure from the inner volume to outside the enclosure. The reflex port further comprises an inner reflex port former which connects the inner volume of the enclosure to the reflex opening for forming the reflex port. The reflex port former is formed by molding as an integral inner wall section which extends inwards from the inner surface of either or both end section.

Abstract: Ultrasonic signals are used to transmit sounds from a modulated ultrasonic generator to other locations from which the sounds appear to emanate. In particular, an ultrasonic carrier is modulated with an audio signal and demodulated on passage through the atmosphere. The carrier frequencies are substantially higher than those of prior systems, e.g., at least 60 kHz, and the modulation products thus have frequencies which are well above the audible range of humans; as a result, these signals are likely harmless to individuals who are within the ultrasonic fields of the system. The signals may be steered to moving locations, and various measures are taken to minimize distortion and maximize efficiency.

Abstract: A loudspeaker system has a loudspeaker housing that comprises at least a first and a second housing chamber. The loudspeaker system has a bass loudspeaker that is mounted on a partition between the first housing chamber and the second housing chamber, wherein the back of the bass loudspeaker has the first housing chamber present and the front of the bass loudspeaker has the second housing chamber present. The partition contains at least one bass reflex opening. A phase correction element is arranged at the front of the bass loudspeaker in the second housing chamber. The bass reflex opening opens into the second housing chamber and is arranged in a region adjacent to the phase correction element.

Abstract: A headphone comprising: at least one speaker housing comprising at least a first surface with a first opening and a second surface with second opening; at least one resonator designed to cover at least a portion of the second opening of the second surface; at least one speaker, at least a portion of the speaker disposed within the speaker housing proximate to the first opening of the first surface of the speaker housing.

Abstract: A speaker device includes an enclosure provided with a speaker unit and a bass reflex port, wherein the bass reflex port has an outer opening opened to outside of the enclosure and an inner opening opened to inside of the enclosure, and has a tubular body whose hollow cross-sectional area is gradually reduced along an axial direction of the bass reflex port from its ends to its center, and the tubular body is formed so that a length of the hollow cross-section in one direction does not change along the axial direction, and wherein the inner opening of the bass reflex port is located opposite to the speaker unit, with the bass reflex port sandwiched therebetween.

Abstract: A cabinet to which a speaker unit is attached is configured to have an enclosed space where sound waves outputted from the rear surface of the speaker unit are transmitted, a sound guide space separated from the enclosed space, and an outlet for the sound waves transmitted in the sound guide space. A diaphragm is positioned between the enclosed space and the sound guide space of the cabinet, and an actuator is attached to the diaphragm. An audio signal shared with the speaker unit is supplied to the actuator, and diaphragm vibrations are enhanced by the actuator.

Abstract: An object of the present invention is to provide a loudspeaker device which has a high moisture resistance and can further widens an audio range of low-frequency range sounds. To achieve the above object, a closed box loudspeaker device of the present invention includes a loudspeaker unit which is attached to an opening in a box and activated carbon fiber which is provided in the box to adsorb gas. The activated carbon fiber has plural pores, which are exposed on a surface of the activated carbon fiber and have a diameter of 2.0 nm or less, and a volume of the pores having the diameter of 2.0 nm or less occupies 60% or more of a volume of the entire pores, so that the loudspeaker device which simultaneously achieves both an enhancement of the moisture resistance and the widening of the audio range of the low-frequency range sounds can be provided.

Abstract: An improved structure for a passive radiation sound box comprises: a body, which is formed an inner room and a sound-guide tunnel through several clapboards, the surface of the body is disposed an outlet connecting with the tunnel; a passive radiation component, each of the two ends of a vibration film has an edge, the component is disposed between the clipboards, the edges are connected with the clipboards; and an amplifier unit, which is surrounded in the room by the clapboards and the component, a vibration film of the unit is disposed on a side surface of the room, the component is beneath the unit; wherein while the unit is vibrating and sounding, partial sound pressure in the room is through the room by way of the component, and is then released by the outlet along the tunnel.

Abstract: A loudspeaker system has a front loudspeaker enclosure (30) having at least one first loudspeaker (20) and a rear loudspeaker enclosure (50) having at least one second loudspeaker (60). The rear loudspeaker enclosure (50) is in the form of a bandpass enclosure.

Abstract: A portable loudspeaker includes a base and a speaker cap opposing the base. The base and speaker cap are interposed by a movable resonance portion. The movable resonance portion is formed in a storing state and a releasing state. The base has a resonance reflection portion to receive reverse resonance sound waves generated by a speaker. The movable resonance portion includes a first transmission channel to transmit the reverse resonance sound waves to the resonance reflection portion and a second transmission channel to transmit base sound waves generated by the resonance reflection portion from the reverse resonance sound waves towards the speaker cap. The speaker cap has a second audio outlet to output the bass sound waves.

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

Abstract: A loudspeaker comprises a reflex port located within the enclosure at a point substantially co-incident with a nodal surface of at least one resonant mode within the enclosure. The amplitude of that resonance at the input to the duct is minimized, hence assisting in filtering out the effect of that resonance without needing absorptive material. Ideally, it is placed at the intersection of two or more nodal surfaces.

Abstract: An acoustic layer is added to a laptop-type personal computing device, comprising: enclosing walls, optionally—one or more microphones, a signal processing device, at least one audio transducer, and an acoustic waveguide. The acoustic layer adjoins one or more internal areas of a laptop-type device. The signal processing device receives an internal signal from a laptop-type device. The signal processing device provides a directive sound enhancement of the audio input signals based on room acoustics, such as reverberation, echo, noise, delay, frequency response, and/or speaker-positional information that is determined by the signal processing device. The audio transducer device generates an audible audio output in response to an audio signal output from the signal processing device. The acoustic waveguide receives the audible audio output and generates an enhanced bass audio output from the acoustic waveguide.

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.