Speaker type

A loudspeaker assembly comprising a loudspeaker including a front mounting flange having front surfaces, and an enclosure for the loudspeaker including a front wall and a rear wall and a top wall and a bottom wall and opposed side walls all having at least two layers of corrugated material, the inner...     

A stereophonic speaker headrest for motor vehicles includes a rigid interior shell and a padded cover. The rigid interior shell is generally hollow with a pair of opposed side wing members having speaker attachment structure therein for holding a speaker in each wing. The hollow portion of the rigid...     

The sound speaker system comprises an elongated vertical cylinder having an overall length equal to an integral multiple of its inside diameter. The cylinder is open at its upper and lower ends and a loudspeaker is positioned adjacent its lower end. The diameter of the loudspeaker cone is equal to one-half...     

An acoustic system for disposition proximate to an acoustical boundary comprising at least one acoustic transducer for directing acoustic energy away from the boundary and an acoustic reflector surface extending, without substantial acoustic discontinuity, from proximate to the center of the transducer...     

A novel speaker unit for incorporating into a high fidelity and sound system, the speaker unit consisting of a cabinet made of plexiglas, the plexiglas cabinet enclosing tweeter, midrange and woofer speakers, and the cabinet also carrying a crossover network with a volume knob and also carrying a female...     

A loudspeaker enclosure for an automobile trunk-mounted open loudspeaker carried beneath the rear package shelf of the automobile comprises a closed housing having an opening in the top wall thereof shaped and dimensioned to permit the housing to be fitted over the loudspeaker, with the housing top wall...     

A loudspeaker combination comprises a rectangular casing having mounted on its top wall a midfrequency speaker and two or more high frequency speaker devices. The midfrequency speaker is oriented generally upwardly with an angle of declination of less than 45.degree. from the vertical. The high frequency...     

Two main speaker enclosures when latched to each other at their open faces for transport purposes, enclose chambers that are of an internal configuration and dimension to respectively receive and hold two abutting auxiliary speakers in assembled relationship provided the two auxiliary speakers are inserted...     

Four speakers, each having a small thickness, are arranged so as to form a cubic arrangement. The four speakers form the four side surfaces of the cubic arrangement, with each of two diametrically opposed speakers extending at an acute angle relative to a vertical plane perpendicular to the other two...     

A speaker is enclosed in furniture cabinets consisting of three units. The base cabinet, supported on legs, is a rectangular parallelepiped and accommodates a full range speaker. The top cabinet is pyramidal and accommodates a tweeter at one of its sides. An intermediate cabinet of smaller dimensions...     

Masking sound generating apparatus for use in a conventional room enclosure occupied by adult persons of average range of heights comprising a hollow enclosure having a top opening and a side opening, a speaker mounted inside the enclosure intermediate the top opening and the side opening and facing...     

The subject matter of the invention is a directional electro-acoustical converter, primarily a cardioid sound radiator which, in spite of its small dimensions, has cardioid directivity diagram and at the same time wide transmission band. The known solutions of the cardioid sound radiator have frequency...     

A hanging planter pot speaker enclosure for stereo or monaural music systems comprising a hollow ceramic housing enclosed on all sides and having openings at the top and bottom. A planter pot is set down into the top opening of the housing, and has a radially outwardly extending flange around its top...     

A combination loudspeaker and sign holder having a housing which has enlarged flat parallel end walls joined by narrow end walls. Within the housing is an acoustic horn having a vertical axis and horn end walls diverging downwardly and outwardly. The horn end walls are secured to the housing side walls,...     

An audio speaker system designed to achieve multidirectional sound characteristics which includes an enclosure body having a base, front wall, two angled, forward sound directing side walls, at least one angled, inclined rear wall and a top wall which slopes downward from the rear wall to the front wall....     

A reflex type speaker enclosure integrally formed of ceramic material having a shell of hemispheroidal configuration and having an inturned speaker mounting flange adjacent the equatorial plane. The enclosure is adapted to be suspended by structure extending through an aperture in its apex. The flange...     

The invention relates to a loud speaker system, and more particularly, the utilization of space to the utmost of efficiency for the reproduction of sound. The single unit of a loud speaker apparatus is most effectively mounted at the 90.degree. intersection of adjacent walls and ceiling, cater-corner...     

A speaker protector to enclose the rear of a speaker mounted on a panel in a motor vehicle or the like and comprising housing means including a bottom wall, a tapered side wall extending upwardly and outwardly from the bottom wall, and an outwardly extending circumferential rim connected to the side...     

A speaker cabinet is constituted with plate material formed by intimately bonding a rigid foam plate having communicating or open-cell bubbles to a surface plate material with the latter being outside.

A triaxial or four-dimensional radiant energy transducer system is embodied in an omniphonic microphone and loudspeaker system as it relates to the sound spectrum. This is a system which is capable of detecting the location and direction of a source of sound and, conversely, is capable of re-presenting...     

A loudspeaker having a magnet housing and mounting flange is mounted within an enclosure including an inner member of corrugated fiberboard cut at angles to the corrugations thereof to define hingedly interconnected panels foldable to form a generally prismoidal housing with a speaker opening in one...     

The rear cavity of a tweeter speaker includes a cylindrical block four of a rigid, open celled, homogenous foamed material, such as aluminum. The rear end of the cylinder is cut to expose open cells, and is coated with an impermeable resin film, whereby the block absorbs and dampens back-pressure vibrations...     

A shock resistant loudspeaker enclosure includes a resilient shell formed with an opening therein and a resilient, shock resistant bracket secured to the shell about the periphery of the opening. A loudspeaker mounting board or baffle is secured to the shock resistant bracket through a rigid frame thereby...     

A loudspeaker having precise imaging, neutrality of frequency response, and controlled mid-range and tweeter dispersion. The loudspeaker incorporates an open cell, reticulated polyurethane cartridge for placement of a supertweeter mounted in the loudspeaker at an angle of 45.degree. from other speaker...     

A loudspeaker system for the passenger compartment of a vehicle, such as an automobile, is disclosed. The system has at least two loudspeakers arranged on opposite sides of the passenger compartment in the end regions of a rigid, hollow support element which is closed on all sides and extends across...     

A cabinet for improving the sound output of an amplifier, the cabinet being in the form of an upright rectangular housing with a horizontal partition dividing the interior into an upper and lower portion, the partition having a speaker opening and a baffle opening, a speaker being mounted in the speaker...     

A speaker structure comprising a tetrahedronal shell having an upper end and an equilateral triangular base with equisized triangular walls and with the margins of the adjacent walls and base being secured together and wherein one of the walls includes a pattern of port openings and these openings are...     

This invention relates to a cabinet for audio reproduction speakers of the type which have a movable speaker cone mounted within a fixed speaker frame. The cabinet includes a plurality of external cabinet members juxtaposed to form a substantially rectangular cabinet having a rectangular void therein...     

A speaker supporting device used for radios or cassette tape recorders includes a cylindrical or annular elastic body for supporting a speaker on its inner peripheral surface, one open end of the elastic body is tightly secured to a baffle plate and other open end of the elastic body is tightly secured...     

Loudspeaker equipment embodying a speaker, an enclosure for the speaker which is substantially closed except for the speaker opening and which is formed of walls which are thin and therefore capable of excitation and consequent sound generating vibrations under the influence of the speaker, the speaker...     

A loudspeaker system is disclosed having a rigid framework which contains a high compliance loudspeaker connected to an adjustable air column tube. The adjustable air column tube provides exact 1/4 wavelength tuning for the speaker system, to further improve its low frequency response, in accordance...     

A speaker system in which at least one driver is mounted on an enclosure and is adapted to radiate sound waves outwardly from said enclosure in response to an input signal. A sound absorbing material is disposed on at least a portion of the outer surface area of said enclosure to reduce the effect of...     

A loudspeaker enclosure comprises a shell having an opening therein and a loudspeaker mounting baffle disposed over the opening. The shell is formed entirely from one or more diaphragm members or passive radiators which oscillate in response to selected low frequency sound waves emanating from a loudspeaker...     

A speaker system comprises a cylindrical enclosure and at least one speaker attached to the cylindrical side wall of the enclosure. The speaker is attached to the side wall of the enclosure in such a state that the front thereof is supported at a position depressed from the side surface of the enclosure...     

A loudspeaker enclosure is disclosed which includes a horizontal bottom wall, parallel spaced vertical front and rear walls connected with the bottom wall, the front wall containing an opening for receiving a loudspeaker, and a horizontal top wall connected with the upper edges of the front and rear...     

A speaker cabinet includes a baffle plate having at least one aperture for mounting a speaker unit, the baffle plate having a plurality of small areas over its entire surface and so constructed and arranged that the sound waves propagated along the surface of the baffle plate are scattered.

A speaker cabinet comprises an enclosure having a top, bottom, front, back and two side panels, each panel being contiguous with an adjacent panel along its four edges, and the front panel having a sound port and interiorally of which is mounted a speaker, an improvement comprising a sound post extending...     

Loudspeaker equipment is disclosed of a type comprising a speaker and a speaker enclosure, the enclosure having intercommunicating front and rear compartments, the front compartment being of larger volume than the rear compartment, and the compartments being defined by walls formed of sheet material...     

In a loudspeaker system having eight drivers on a baffle, the baffle has two port openings centered in respective squares embracing respective groups of four drivers. A tubular column extender snaps into each port opening and has a snap cap for detachably securing a polyester disk over the opening. A...     

Modular furniture structure in which one or more modular pillar blocks have supportive engagement with modular articles of furniture wherein at least one of the top and bottom load bearing surfaces of each pillar block has a recessed seat for receiving the complementary surface of the modular article...     

A vent for linear control of pressure in an infinite baffle type loudspeaker system wherein an elongated "V" shaped trough is cut through the back wall of a speaker enclosure with the smaller side of the trough piercing the inner surface of the back wall of the enclosure and the larger side thereof piercing...     

A speaker assembly comprising a first cabinet or housing of a pyramidal configuration having a speaker element mounted therein in such a manner that the sound emitting from the speaker is concentrated in a direction outwardly of the pyramid, and a second housing of pyramidal configuration disposed in...     

A compact portable high acoustic power loudspeaker system is described. A plurality of speakers are mounted inside an enclosure which is sealed. A passive radiator is also provided which is symmetrically disposed inside the enclosure relative to the speakers so as to be subjected to a generally uniform...     

A speaker system comprises an enclosure and at least one speaker mounted therein. The enclosure includes at least one duct connecting the interior of the enclosure directly with the outer air at the front thereof. Each duct is confined at least at one side by a member extending substantially normal to...     

A bass sound projection system comprises a cabinet containing at least one bass loudspeaker operating into a sound channel. The sound channel converges forwardly, relative to the direction of propagation of sound waves, of the loudspeaker to a throat and then diverges forwardly, relative to the direction...     

Loudspeaker equipment embodying a speaker, an enclosure for the speaker which is substantially closed except for the speaker opening and which is formed of walls which are thin and therefore capable of excitation and consequent sound generating vibrations under the influence of the speaker, the speaker...     

A speaker system in which a speaker unit mounting frame and unit boards are mounted in juxtaposition on a baffle board, and at least a part of the unit board surface contiguous to the surface of the speaker unit mounting frame is bevelled to form a gently-sloping face.

An improved loudspeaker assembly wherein one or more speakers are mounted in a closed cylindrical housing of air impervious material. When a plurality of speakers are utilized in an assembly, they are vertically spaced, with the central axis of each speaker contained in a respective radial plane and...     

A loudspeaker system embodies an enclosure defining a sound chamber having a front wall with a sound emitting opening therein. An outwardly and forwardly flaring speaker cone is mounted within the enclosure and adjacent the opening therein with the innermost portion of the speaker cone emitting more...     

For use with a cabinet containing at least one loudspeaker, a grille is provided which is comprised of elongated frame members connected by corner brackets. A rigid superstructure, comprising corner ridge members and one or more central ridge members joined by ridge joint members, is attached to the...     

A cabinet for improving the sound output of an amplifier including an upright housing with a speaker mounted on the front, the front having one or more baffle openings, a device herein called a sound lens inserted in the baffle opening, the vibration of the speaker serving to induce vibration of the...     

An acoustical reproducing apparatus is disclosed for high fidelity sound reproduction comprising a speaker unit in combination with a cabinet enclosure acting as a resonating chamber. The resonating chamber has a rhombic dodecahedron configuration having speaker-mounting openings located on two or more...     

A loudspeaker enclosure for housing a basic speaker and providing a conduit for channeling the sound waves emitted from the back surface of the basic speaker so that the sound waves are shifted in phase and emerge from a port in the enclosure and add to, rather than acoustically cancel, the sound waves...     

A thermoplastic front frame having many small protrusions on the whole front face and many thorn-like sharp projections on the whole rear face. The frame is strongly forced onto a cloth with the front face of the frame being directed downwardly, so that the front protrusions cut into the cloth so as...     

A loudspeaker having a framework with a plurality of openings therein is fitted with an elastic body of a bitumen-containing urethane foam over the rearside of the framework to absorb the acoustic energy transmitted rearwardly from the speaker.

A speaker enclosure with a multiplicity of sound-openings in which the back sound pressure from a plurality of front radiating speaker-units mounted in a vertical row on a baffle board, is completely divided at the back of the speaker-units by a centrally located dividing board. Reflecting boards at...     

The invention is an improved enclosure for electronic speakers used in sound reproduction equipment. The enclosure is in the form of a pyramid with the speaker mounted at a precise position within the enclosure to give improved results in sound reproduction. The invention includes associated mountings...     

A loudspeaker enclosure of the acoustic suspension type has a hollow interior of a generally spherical shape, and the enclosure is formed of polyurethane foamed plastic in which the volume (V) of the enclosure interior is determined according to the following empirical formula: V=[MD].sup.3 where M is...     

A loudspeaker enclosure for use in housing loudspeakers, the loudspeaker enclosure comprising a casement having a generally rectangular cuboid shape, the casement including three layers. A first layer and a second layer comprise sheets of metal and are space apart to provide for an inner layer of plastic...     

A loudspeaker system makes use of a closed cubic enclosure the front of which is a square baffle having tapered edges, the intersections of which fit the outline of an imaginary sphere which substantially encompasses the enclosure. Wide dispersion of audible acoustic waves of low frequency with a minimal...     

A loudspeaker apparatus comprises an enclosure having a loudspeaker mounted on a surface thereof, means within the enclosure and cooperating with other surfaces thereof for initially directing sound energy emanating from the back of the loudspeaker through a first sound wave compression zone in a first...     

An exponential folded horn loudspeaker enclosure is built so that all of its components are coaxial with respect to a line that is equidistant from three cooperating surfaces, including floor or ceiling, as well as the customary two walls of a corner. Perfect symmetry with all three cooperating surfaces...     

A speaker enclosure comprising a cabinet that defines an upper compartment and a lower compartment. A sectorial horn is mounted in the upper compartment and a prismatic member is disposed across the outlet of the horn to direct the sound energy upwardly and downwardly from the horn. Mounted in the lower...     

A folded-horn loudspeaker system adapted for high-power audio applications. The system preferably comprises a rigid enclosure of generally cubicle dimensions and an integral, exponentially curved horn projecting outwardly from the enclosure toward the listening area. A transducer housed within a sealed...     

A loudspeaker grille made of stiff material such as stiffened grille cloth, has at least a major proportion of the length of its edge so shaped that, when seen in cross section, one part extends rearwardly, approximately perpendicularly to the plane of the grille, and another part returns forwardly again...     

A passive radiator, which may be a cone-type radiator is employed in a speaker system enclosure facing downwardly in the direction of the floor upon which the enclosure rests. The bottom wall supporting the passive radiator is preferably spaced a relatively short height above the floor by means of a...     

High quality stereo sound dispersion is obtained through the use of a speaker cabinet having three tiers of speakers which are effectively sound insulated from one another. The topmost and bottommost tiers have speakers which are oriented in divergent directions from one another, while the intermediate...     

A barrel-shaped diaphragm comprising a plurality of barrel stave-like strips with slits forming gaps between them is mounted on the vibration coil of a vibration generator that is based on a housing. A traverse bar which is based on the housing extends up through the center of the diaphragm. A sound...     

A loud-speaker of a closed or a bass-reflex type, wherein a plurality of speaker units are intensively arranged behind an opening of a baffle board or a throat of a sounding horn with the sound wave radiating direction thereof being concentrated toward the center axis of the opening of throat, and the...     

A loudspeaker cabinet comprising front, back, top, bottom and side panels, a speaker drive unit positioned on an upper portion of the front panel, first and second spaced apart sound wave reflector panels positioned below the speaker unit and extending from the front panel towards the rear panel but...     

A free standing frame supports front, back, side, top and bottom panels in such a manner that the panels are free to move relative to each other. Speaker drivers are mounted to the front panel such that frontwave radiation therefrom is allowed to project outwardly. Rear wave radiation is, however, contained...     

A loudspeaker system with a plurality of direct loudspeakers mounted on an enclosure front for radiating in a forward direction and at least one compensation loudspeaker for each loudspeaker. The compensation speakers are mounted to direct sounds rearwardly so that both the sound pressure as a result...     

A bass-reflex type speaker system having a cabinet including a front baffle board, a back panel and two side panels and a speaker mounted on the front panel. A port is disposed in either the back panel or in one of the side panels and a duct is in communication with the port. The back panel may be flat...     

An enclosure for transducers incorporates an interior acoustically reflective shell. This acoustically reflective shell is shaped so that the inner surface thereof is the envelope of at least a section of a cylinder of elliptical cross section, an ellipsoid of revolution, or the envelope of a multitude...     

A bi-directional speaker unit is provided by a wedge shaped member having intersecting walls with spaced parallel angled louvers. The unit is coupled to a base member through a snap on means permitting other type units to be used with the same base member.

The invention relates to a housing loudspeaker which in addition to the loudspeaker opening has a further opening in its outer wall of the housing. Components are provided in the inner space between the loudspeaker and the opening which should eliminate the sound emitted into the inside by the loudspeaker....     

A speaker enclosure having a rear bass-reflex chamber and a forward mid-range chamber formed within a substantially rectangular housing. A tunnel-bass port is formed in the bottom section of the front wall of the enclosure, the bottom section being angularly disposed and arranged to communicate with...     

A loud-speaker of a closed or a bass-reflex type, wherein a plurality of speaker units are intensively arranged behind an opening of a baffle board or a throat of a sounding horn with the sound wave radiating direction thereof being concentrated toward the center axis of the opening of throat, and the...     

A controlled dispersion loudspeaker configuration is disclosed in which a loudspeaker is mounted through a hole in a front baffle forming a seal between the speaker and the baffle. A rear baffle is parallely spaced a predetermined distance away from the front baffle by means of spacers. Acoustically...     

A loudspeaker enclosure has a loudspeaker driver mounted on a surface of the enclosure such that the driver has an exposed front face to produce sound waves which are sought to be transmitted to a listening space exterior of the loudspeaker enclosure. A plurality of successive spaced limp or semi-limp...     

A stereo audio system for a motorcycle includes a housing (10) for a radio receiver and/or tape deck and speaker-mirror assemblies (11, 12) mounted on base-socket assemblies (13, 14) threaded over mounting posts screwed into tapped holes in place of conventional mirrors on the motorcycle handle bars...     

A passive system having high volumetric compliance in response to compressions and expansions, such as are present in low frequency acoustic wave energy, employs a saturated vapor-saturated liquid interface thermodynamically stabilized by distributed heat sinks that interact with the acoustic wave energy....     

A speaker system comprises a main cabinet and two auxiliary speakers. The main cabinet encloses a bass speaker and includes a slot for slot-loading of the bass speaker. The auxiliary speakers have a frequency range higher than that of the bass speaker, and are in enclosures which fit within slots in...     

A speaker bracket comprises a first planar apertured mounting frame to which a speaker is fixedly connected with the aperture thereof aligned with the speaker diaphragm and a second planar apertured mounting frame fixedly connected to a planar mounting surface; in particular the rear deck of an automobile....     

A miniaturized cone driven reentrant loudspeaker is provided. A cone spea is positioned within a housing. The housing includes a front wall for radiating sound and a side wall. The cone speaker is directed towards a reflector back plate having a generally spherical surface which protrudes into the cone...     

A loudspeaker is provided for high-quality and particularly stereophonic sound reproducing systems positioned close to a wall of a room. To reduce distortion due to that part of the reflected sound which arrives from substantially the same direction as the direct sound, the positioning of the sound radiating...     

A loudspeaker enclosure with precisely dimensioned chambers to control and develop loudspeaker back wave energies almost exclusively as acoustical tensions. Focusing of these acoustical tensions is accomplished within each chamber so as to localize the several points of acoustical energy concentration...     

A loudspeaker includes, in an enclosure, a motor and a diaphragm coupled thereto. An inverted horn couples the surface of the diaphragm through the enclosure. The diaphragm is located in the enclosure with the center line which is parallel to but offset from a center line of the inverted horn.

A relatively small, lightweight muffler is provided, especially adapted to low horsepower aircraft and comprises an elongated, essentially cylindrical structure made up of inner and outer casings having sound-absorbent-material-containing chambers and pressure-wave trap elements to minimize exhaust noises....     

A loudspeaker system for use in stereo sound reproduction which is adapted to reflect all higher frequency sounds off a reflecting surface before the sounds reach a listener. The system comprises two enclosures, each having two compartments. The lower compartment houses the woofer; the upper compartment...     

A multi-chamber loudspeaker enclosure comprises a primary chamber having a principal interior volume and a secondary chamber having a minor interior volume substantially smaller than the principal interior volume. The secondary chamber comprises an elongated housing mounted to a front wall of the primary...     

An accessory for mounting on the receiver of a personal paging system. The receiver is normally worn below ear level and the accessory increases the sound of the paging signals reaching ear level.

A loudspeaker system has an enclosure of rectangular cross section with a baffle dividing the interior into first and second subchambers. Each subchamber has a port tube coupling the subchamber to the region outside the enclosure. The dividing baffle carries a woofer.

A speaker unit utilizing the sound radiation from the front and rear faces of a diaphragm can be constructed by placing the diaphragm in an acoustic baffle to isolate the back side and front side radiation and propogating the backside radiation through a tube to an acoustic resonator. This arrangement...     

A loudspeaker is provided for high-quality stereophonic loudspeaker systems intended to be positioned on the floor close to a vertical wall of a room. The aim is to reduce distortion due to that part of the reflected sound which arrives from substantially the same direction as the direct sound. Therefore...     

The stereophonic single baffle comprises two adjacent chambers (7, 8) comprising each a rear wall (9, 10) forming an angle between them. Loud speakers (13 to 16) are mounted on each of said rear walls (9,10). The center of the loud speakers (13 to 16) mounted on a same rear wall (9, 10) are located on...     

A portable speaker for vehicles which includes a shaped, box-like structure having front and rear sound chambers having top segments disposed in different planes and port holes communicating with the sound chambers, respectively, with front and rear speaker units provided in the respective sound chambers....     

This portable sound speaker system has an elongated cylinder supporting a layer of acoustically absorbent material lining the interior surface thereof. The cylinder has an open, raised platform as its support in a vertical position, where the platform has a first base plate carrying a plurality of spacers...     

A parabolic speaker system is provided and consists of a cabinet that has a front grille and a parabolic rear reflecting surface. Inverted woofer, midrange and tweeter speakers are mounted within said cabinet so that sounds would be reflected back to a listener at a wider and fuller range.

This invention relates to low-frequency speaker enclosures in general, and more specifically to dual cabinet construction, wherein each of the cabinet structures contains a portion of a pre-formed generally semi-circular variable diameter horn passageway, surrounded by contoured foam elements that provide...