GB1349489A - Sound source cabinets - Google Patents
Sound source cabinetsInfo
- Publication number
- GB1349489A GB1349489A GB3740371A GB3740371A GB1349489A GB 1349489 A GB1349489 A GB 1349489A GB 3740371 A GB3740371 A GB 3740371A GB 3740371 A GB3740371 A GB 3740371A GB 1349489 A GB1349489 A GB 1349489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- loud
- partition
- speaker
- front face
- 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.)
- Expired
Links
- 238000005192 partition Methods 0.000 abstract 6
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
- H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
1349489 Loud-speaker cabinets NECKERMANN VERSAND KGaA 9 Aug 1971 [18 Aug 1970] 37403/71 Headings H4J and H4X A loud-speaker cabinet includes rigid internal partitions which define a pressure chamber for the loud-speaker and a spiral horn which extends around the pressure chamber gradually opening out and couples the chamber to an external opening in the cabinet. The Figure shows an internal view of the cabinet after the front face has been removed. The loud-speaker faces outwardly through an aperture in the front face and protrudes rearwardly into a pressure chamber 14. Sound in the chamber 14 passes round a spiral formed by partitions such as 16 which extend between the front face and a partition 4 parallel to that face and pass over an edge 26 of an opening 27 to enter a lower chamber below the partition 4. The lower chamber is divided by a partition which extends in the direction of the edge 26, below that edge and below the chamber 14 to form a continuation of the horn which extends in a clockwise direction round the partition. The horn then turns towards the front of the casing and debouches through a square opening in the front face.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702041012 DE2041012C (en) | 1970-08-18 | Loudspeaker enclosure |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1349489A true GB1349489A (en) | 1974-04-03 |
Family
ID=5780085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3740371A Expired GB1349489A (en) | 1970-08-18 | 1971-08-09 | Sound source cabinets |
Country Status (10)
Country | Link |
---|---|
US (1) | US3730291A (en) |
AT (1) | AT305403B (en) |
BE (1) | BE771389A (en) |
CH (1) | CH539372A (en) |
FR (1) | FR2102317B1 (en) |
GB (1) | GB1349489A (en) |
LU (1) | LU63280A1 (en) |
NL (1) | NL7111302A (en) |
NO (1) | NO133344C (en) |
SE (1) | SE370306B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2338298C2 (en) * | 1973-07-27 | 1975-09-11 | Neckermann Versand Kgaa, 6000 Frankfurt | Loudspeaker enclosure with an exponential funnel and at least two loudspeakers |
US4138594A (en) * | 1977-06-02 | 1979-02-06 | Klipsch And Associates, Inc. | Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and loudspeaker system including same |
US5824969A (en) * | 1996-09-30 | 1998-10-20 | Takenaka; Masaaki | Speaker system with a three-dimensional spiral sound passage |
JPH11234783A (en) * | 1998-02-13 | 1999-08-27 | Masaaki Takenaka | Speaker system |
US6349792B1 (en) | 2000-04-07 | 2002-02-26 | Harold N. Smith, Jr. | Sound enhancing speaking cabinet for a removable speaker assembly |
FI112909B (en) * | 2001-02-19 | 2004-01-30 | Genelec Oy | The structure of a reflex speaker and a method for forming it |
US6860363B2 (en) * | 2002-07-03 | 2005-03-01 | Christopher Gardner | Planar acoustic waveguide |
JP6852399B2 (en) * | 2016-12-28 | 2021-03-31 | ヤマハ株式会社 | Speaker device and speaker cabinet |
US20210105556A1 (en) * | 2019-10-08 | 2021-04-08 | Soniphi Llc | Systems & Methods For Expanding Sensation Using Isobaric Chambers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2866513A (en) * | 1952-11-24 | 1958-12-30 | Edward V Bracken | Apparatus for generating sound |
US2815086A (en) * | 1954-02-18 | 1957-12-03 | William L Hartsfield | Convertible loudspeaker system |
US2835335A (en) * | 1955-05-02 | 1958-05-20 | Courtney Q Glassey | Loudspeaker housing using an open side as a horn mouth |
US2986229A (en) * | 1957-01-15 | 1961-05-30 | Gen Dynamics Corp | Loudspeaker enclosures |
US3112006A (en) * | 1961-02-08 | 1963-11-26 | Alfred H Roberts | Loudspeaker enclosures |
US3135349A (en) * | 1962-04-02 | 1964-06-02 | Uolevi L Lahti | Loudspeaker |
-
1971
- 1971-04-28 AT AT366371A patent/AT305403B/en not_active IP Right Cessation
- 1971-04-30 NO NO1616/71A patent/NO133344C/no unknown
- 1971-05-03 CH CH651471A patent/CH539372A/en not_active IP Right Cessation
- 1971-05-28 FR FR7119436A patent/FR2102317B1/fr not_active Expired
- 1971-06-03 LU LU63280D patent/LU63280A1/xx unknown
- 1971-07-26 SE SE7109569A patent/SE370306B/xx unknown
- 1971-08-04 US US00168977A patent/US3730291A/en not_active Expired - Lifetime
- 1971-08-09 GB GB3740371A patent/GB1349489A/en not_active Expired
- 1971-08-17 NL NL7111302A patent/NL7111302A/xx unknown
- 1971-08-17 BE BE771389A patent/BE771389A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH539372A (en) | 1973-07-15 |
FR2102317B1 (en) | 1973-11-30 |
DE2041012B2 (en) | 1972-08-17 |
FR2102317A1 (en) | 1972-04-07 |
NO133344C (en) | 1976-04-21 |
BE771389A (en) | 1971-12-31 |
US3730291A (en) | 1973-05-01 |
AT305403B (en) | 1973-02-26 |
DE2041012A1 (en) | 1972-02-24 |
NL7111302A (en) | 1972-02-22 |
LU63280A1 (en) | 1971-09-09 |
SE370306B (en) | 1974-10-07 |
NO133344B (en) | 1976-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |