GB2529863A - Loudspeaker enclosure - Google Patents

Loudspeaker enclosure Download PDF

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Publication number
GB2529863A
GB2529863A GB1415672.3A GB201415672A GB2529863A GB 2529863 A GB2529863 A GB 2529863A GB 201415672 A GB201415672 A GB 201415672A GB 2529863 A GB2529863 A GB 2529863A
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
loudspeakers
enclosure
opening
faces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1415672.3A
Other versions
GB201415672D0 (en
Inventor
Michael D Gillett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1415672.3A priority Critical patent/GB2529863A/en
Publication of GB201415672D0 publication Critical patent/GB201415672D0/en
Publication of GB2529863A publication Critical patent/GB2529863A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer

Abstract

The loudspeaker enclosure comprises a housing 10 defining an inner cavity. The housing comprises a substantially uniform polyhedron having a plurality of substantially identical faces 12 each face having at least five sides. The cavity is configured to house a loudspeaker and the housing has an opening 14 to accommodate the loudspeaker.

Description

LOUDSPEAKER ENCLOSURE
This invention relates generally to a loudspeaker enclosure and, more particularly but not necessarily exclusively, to a loudspeaker enclosure for housing a loudspeaker of an acoustic amplifier system.
An acoustic amplifier is a device that can be used with acoustic instruments, typically a guitar, to enhance and amplify the sound produced by the instrument. Such devices are available in a wide range of sizes and can produce varying levels of volume depending on the model used. Bass instrument amplification, used for the bass guitar, double bass and similar instruments, is distinct from other types of amplification systems due to the particular challenges associated with low-frequency sound reproduction. This distinction affects the design of the loudspeakers and the speaker cabinet, as well as the preamplifier and amplifier. In particular, speaker cabinets for bass instrument amplification usually incorporate larger (or more) loudspeakers than those used for the amplification of other instruments. As a result, the amplifier head and speaker assembly required to be carried by a musician between venues tends to be very large, heavy and generally more difficult to transport.
When playing together in a band, musicians such as a bassist and drummer must be able to hear each other's instruments being played in order to maintain a blended rhythm. Thus, the bassist's amplifier speaker stack, which is usually located nearby, must be at a sufficiently high volume for the drummer to be able to hear the output. However, this often results in all members of the group having to play at a sufficiently high volume to match the output of the bass amplifier assembly, resulting in a combined volume which may be unsuitable for smaller venues, certain acoustic environments, or specific functions and circumstances.
Therefore, it would be desirable to provide an assembly which addresses at least some of these issues and, in accordance with an aspect of the present invention, there is provided a loudspeaker enclosure comprising a housing defining an inner cavity comprising a substantially uniform polyhedron having a plurality of substantially identical faces of at least five sides, said cavity being configured to house a loudspeaker and having an opening therein.
As a result of the novel shape of the cavity defined by the enclosure described above, it is possible to provide a significantly smaller speaker enclosure than those conventionally required for a bass amplifier system in particular, whilst maintaining a high quality acoustic response, as the internal configuration of the cavity prevents, or at least significantly reduces, the formation of standing waves within the cavity. Furthermore, similar smaller units can be provided for other band members, to be located around a performance area as required, thus eliminating the need for a single, large speaker stack, and also the need for the bassist's loudspeaker volume to be high enough for everyone else to hear, and enabling greater volume control overall. Still further, due to the shape and configuration of the enclosure, several such enclosures can be stacked or bracketed together in various configurations, as required.
In one exemplary embodiment, the faces may comprise pentagons, although other geometric shapes are also envisaged, such as hexagons or octagons. In one exemplary embodiment, the cavity comprises a substantially uniform dodecahedron.
The opening may be provided in one of said faces, and in one exemplary embodiment, the opening forms substantially all of one of said faces, such that when a loudspeaker is housed within the enclosure, the output thereof (possibly defined by the dust filter) can be mounted within the opening.
Another aspect of the present invention extends to a loudspeaker including an output portion, said loudspeaker being mounted in an enclosure as defined above, wherein said output portion is mounted within said opening.
Yet another aspect of the present invention extends to a loudspeaker assembly comprising at least two loudspeakers as defined above, said loudspeakers being removably mounted to each other, for example, by means of one or more brackets.
A further aspect of the invention extends to an amplifier assembly comprising an amplifier head having an input and at least two outputs, and at least two loudspeakers as defined above, wherein one of said loudspeakers is connected to a first of said outputs and the other of said loudspeakers is connected to a second of said outputs.
These and other aspects of the present invention will be apparent from the following specific description, in which embodiments of the present invention will be described in more detail, by way of examples only, and with reference to the accompanying drawings, in which: Figure 1 is a schematic front perspective view of a loudspeaker enclosure according to an exemplary embodiment of the present invention; and Figure 2 is a schematic diagram illustrating an amplifier system including two loudspeakers according to an exemplary embodiment of the present invention.
Referring to Figure 1 of the drawings, a loudspeaker enclosure according to an exemplary embodiment of the present invention comprises a dodecahedral housing 10 comprised of eleven pentagonal faces 12, and a pentagonal opening 14 in place of the twelfth face. The enclosure 10 may be moulded or otherwise formed of any suitable material, for example, softwood. In the example illustrated, the external faces of the enclosure also form the exterior shape of the overall speaker unit, but in alternative embodiments, the exterior may be of any shape, such as a square or rectangular box, within which is provided a polyhedral cavity.
Referring additionally to Figure 2 of the drawings, the enclosure of Figure 1 houses a conventional loudspeaker over which is provided a dust filter 16.
The dust filter of the loudspeaker may be mounted within the opening 14 of the enclosure 10, such that it forms the twelfth face of the dodecahedral unit and enables the output of the loudspeaker to be projected therethrough to the exterior environment.
In use, a loudspeaker unit 10 is connected to an output 18 of a bass amplifier head 20. A musical instrument, such as a bass guitar (not shown) is connected to the input 22 of the amplifier head 20. In a preferred arrangement, the loudspeaker unit 1 Oa provided for the bass guitarist may be somewhat larger in size than the loudspeaker unit lOb provided for, for example, the drummer. It will be appreciated that, whilst the loudspeaker units 10 are connected to the amplifier by means of hard wires, they may alternatively be connected wirelessly if the amplifier is configured for such communication.
It will be apparent to a person skilled in the art, from the foregoing description, that modifications and variations can be made to the described embodiments without departing from the scope of the invention as claimed.

Claims (10)

  1. CLAIMS1. A loudspeaker enclosure comprising a housing defining an inner cavity comprising a substantially uniform polyhedron having a plurality of substantially identical faces of at least five sides, said cavity being configured to house a loudspeaker and having an opening therein.
  2. 2. A loudspeaker enclosure according to claim 1, wherein said faces comprise pentagons.
  3. 3. A loudspeaker enclosure according to claim 1 or claim 2, wherein said cavity comprises a substantially uniform dodecahedron.
  4. 4. A loudspeaker enclosure according to any of the preceding claims, wherein said opening is provided in one of said faces.
  5. 5. A loudspeaker enclosure according to claim 4, wherein said opening forms substantially all of one of said faces.
  6. 6. A loudspeaker including a output portion, said loudspeaker being mounted in an enclosure according to any of the preceding claims, wherein said output portion is mounted within said opening.
  7. 7. A loudspeaker assembly comprising at least two loudspeakers according to claim 6, said loudspeakers being removably mounted to each other.
  8. 8. A loudspeaker assembly according to claim 7, wherein said loudspeakers are removably mounted to each other by means of one or more brackets.
  9. 9. An amplifier assembly comprising an amplifier head having an input and at least two outputs, and at least two loudspeakers according to claim 6, wherein one of said loudspeakers is connected to a first of said outputs and the other of said loudspeakers is connected to a second of said outputs.
  10. 10. A loudspeaker enclosure substantially as herein described with reference to the accompanying drawings.
GB1415672.3A 2014-09-04 2014-09-04 Loudspeaker enclosure Withdrawn GB2529863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1415672.3A GB2529863A (en) 2014-09-04 2014-09-04 Loudspeaker enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1415672.3A GB2529863A (en) 2014-09-04 2014-09-04 Loudspeaker enclosure

Publications (2)

Publication Number Publication Date
GB201415672D0 GB201415672D0 (en) 2014-10-22
GB2529863A true GB2529863A (en) 2016-03-09

Family

ID=51796205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1415672.3A Withdrawn GB2529863A (en) 2014-09-04 2014-09-04 Loudspeaker enclosure

Country Status (1)

Country Link
GB (1) GB2529863A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545674A1 (en) * 1983-05-02 1984-11-09 Leguillou Denis Pentagonal acoustic enclosure with self-supporting star-configured internal tie bars
US20050025319A1 (en) * 2003-07-31 2005-02-03 Solid Acoustics Co., Ltd. Dodecahedral speaker system
US6961438B1 (en) * 1999-12-20 2005-11-01 Globo Technology, Inc. Loudspeaker system having wide-directional characteristics
US20060233402A1 (en) * 2005-04-15 2006-10-19 Victor Company Of Japan, Limited Electroacoustic transducer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545674A1 (en) * 1983-05-02 1984-11-09 Leguillou Denis Pentagonal acoustic enclosure with self-supporting star-configured internal tie bars
US6961438B1 (en) * 1999-12-20 2005-11-01 Globo Technology, Inc. Loudspeaker system having wide-directional characteristics
US20050025319A1 (en) * 2003-07-31 2005-02-03 Solid Acoustics Co., Ltd. Dodecahedral speaker system
US20060233402A1 (en) * 2005-04-15 2006-10-19 Victor Company Of Japan, Limited Electroacoustic transducer

Also Published As

Publication number Publication date
GB201415672D0 (en) 2014-10-22

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)