PT66254A - Loudspeaker system - Google Patents

Loudspeaker system

Info

Publication number
PT66254A
PT66254A PT66254A PT6625477A PT66254A PT 66254 A PT66254 A PT 66254A PT 66254 A PT66254 A PT 66254A PT 6625477 A PT6625477 A PT 6625477A PT 66254 A PT66254 A PT 66254A
Authority
PT
Portugal
Prior art keywords
loudspeaker system
loudspeaker
Prior art date
Application number
PT66254A
Other languages
Portuguese (pt)
Other versions
PT66254B (en
Original Assignee
Marantz Co
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 Marantz Co filed Critical Marantz Co
Publication of PT66254A publication Critical patent/PT66254A/en
Publication of PT66254B publication Critical patent/PT66254B/en

Links

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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
PT66254A 1976-09-27 1977-03-01 Loudspeaker system PT66254B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72737076A 1976-09-27 1976-09-27

Publications (2)

Publication Number Publication Date
PT66254A true PT66254A (en) 1977-04-01
PT66254B PT66254B (en) 1978-08-07

Family

ID=24922379

Family Applications (1)

Application Number Title Priority Date Filing Date
PT66254A PT66254B (en) 1976-09-27 1977-03-01 Loudspeaker system

Country Status (13)

Country Link
JP (1) JPS5342722A (en)
AR (1) AR211052A1 (en)
AU (1) AU2277577A (en)
BE (1) BE851924A (en)
BR (1) BR7701164A (en)
DE (1) DE2708872A1 (en)
DK (1) DK89577A (en)
ES (1) ES456320A1 (en)
FR (1) FR2365926A1 (en)
NL (1) NL7702202A (en)
NO (1) NO770712L (en)
PT (1) PT66254B (en)
SE (1) SE7701417L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417909A1 (en) * 1978-02-17 1979-09-14 Thaille Jean Louis ACOUSTIC PRESSURE (OR CHARGE) REGULATOR
FR2429535A3 (en) * 1978-06-23 1980-01-18 Thomson Brandt Bass reflex Helmholtz resonator loudspeaker enclosure - has a low frequency cut=off adjustable by packing the enclosure vent with foam, e.g. polyurethane
FR2598875A1 (en) * 1986-05-14 1987-11-20 Cabasse Georges Acoustic enclosure with variable tuning
EP0403900A3 (en) * 1989-06-20 1992-03-25 Krister Amnéus Electroacoustical loudspeaker device
DE3920041C1 (en) * 1989-06-20 1990-12-06 Amneus Engineering, Vaellingby, Se
US6470088B2 (en) 2000-12-27 2002-10-22 Koninklijke Philips Electronics, N.V. Vented loudspeaker enclosure with limited driver radiation
WO2008025060A1 (en) * 2006-08-29 2008-03-06 Immersion Technology Property Limited Loudspeaker system with adjustable response
JP4875039B2 (en) * 2008-09-24 2012-02-15 ボーズ・コーポレーション Active noise reduction headset
IT1399292B1 (en) * 2009-11-17 2013-04-11 Sonus Faber S P A PROJECT CLAIM FOR THE RESONANCE ROOMS AGREEMENT IN SPEAKER SYSTEMS.
JP5880039B2 (en) * 2011-12-28 2016-03-08 ヤマハ株式会社 Speaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138781A (en) * 1954-09-03 1957-06-19 Goodmans Ind Ltd Loudspeaker cabinet
US3360073A (en) * 1966-08-08 1967-12-26 Musi Cloud Inc Loud speaker enclosure
US3684051A (en) * 1970-10-08 1972-08-15 Herbert J Hopkins Acoustic duct speaker system
GB1403354A (en) * 1971-05-25 1975-08-28 Gabr S Z M Loudspeaker cabinets

Also Published As

Publication number Publication date
SE7701417L (en) 1978-03-28
AU2277577A (en) 1978-09-07
JPS5342722A (en) 1978-04-18
DK89577A (en) 1978-03-28
FR2365926A1 (en) 1978-04-21
AR211052A1 (en) 1977-10-14
ES456320A1 (en) 1978-02-01
NO770712L (en) 1978-03-29
NL7702202A (en) 1978-03-29
DE2708872A1 (en) 1978-03-30
FR2365926B1 (en) 1980-02-22
BR7701164A (en) 1978-06-06
BE851924A (en) 1977-08-29
PT66254B (en) 1978-08-07

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