JPS6420797A - Speaker system - Google Patents
Speaker systemInfo
- Publication number
- JPS6420797A JPS6420797A JP17742787A JP17742787A JPS6420797A JP S6420797 A JPS6420797 A JP S6420797A JP 17742787 A JP17742787 A JP 17742787A JP 17742787 A JP17742787 A JP 17742787A JP S6420797 A JPS6420797 A JP S6420797A
- Authority
- JP
- Japan
- Prior art keywords
- acoustic
- acoustic tube
- sound
- tube
- speaker unit
- 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.)
- Granted
Links
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
PURPOSE:To generally increase efficiency over the wide band area of a low frequency sound while the resonance of an acoustic tube is continuously generated by constituting plural pieces of acoustic tubes having different lengths on the back face of a speaker unit and further providing a shared acoustic tube at an outlet. CONSTITUTION:Partition boards 6a-6h in a cabinet 5 are constituted of two acoustic tubes having different length continuously extended from the back face of a speaker unit 8 and a shared acoustic tube at these outlets. Under a frequency f1 that one wavelength tunes in the longer acoustic tube, the front face sound of the speaker unit 8 is inverted with a sound to be radiated from an opening 7 of the common acoustic tube and a large sound pressure trough is generated. The shorter acoustic tube can be of an arbitrary acoustic characteristic by selecting its length, for example, when a tube length is obtained that a 3/4 wavelength tunes in at f1 so as to offset the sound pressure trough of the longer acoustic tube, the reproducing band of a low sound area can be widely expanded.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17742787A JPH0632527B2 (en) | 1987-07-16 | 1987-07-16 | Speaker system |
US07/204,523 US4930596A (en) | 1987-06-16 | 1988-06-09 | Loudspeaker system |
EP88109508A EP0295641B1 (en) | 1987-06-16 | 1988-06-15 | Loudspeaker system |
DE88109508T DE3883624T2 (en) | 1987-06-16 | 1988-06-15 | Speaker system. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17742787A JPH0632527B2 (en) | 1987-07-16 | 1987-07-16 | Speaker system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6420797A true JPS6420797A (en) | 1989-01-24 |
JPH0632527B2 JPH0632527B2 (en) | 1994-04-27 |
Family
ID=16030744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17742787A Expired - Lifetime JPH0632527B2 (en) | 1987-06-16 | 1987-07-16 | Speaker system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0632527B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015222901A (en) * | 2014-05-23 | 2015-12-10 | 本田技研工業株式会社 | Speaker device for vehicle |
-
1987
- 1987-07-16 JP JP17742787A patent/JPH0632527B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015222901A (en) * | 2014-05-23 | 2015-12-10 | 本田技研工業株式会社 | Speaker device for vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPH0632527B2 (en) | 1994-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080427 Year of fee payment: 14 |