GB1435623A - Multiple driver dynamic loud speaker - Google Patents

Multiple driver dynamic loud speaker

Info

Publication number
GB1435623A
GB1435623A GB5243573A GB5243573A GB1435623A GB 1435623 A GB1435623 A GB 1435623A GB 5243573 A GB5243573 A GB 5243573A GB 5243573 A GB5243573 A GB 5243573A GB 1435623 A GB1435623 A GB 1435623A
Authority
GB
United Kingdom
Prior art keywords
units
bais
transducers
nov
enclosure
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
Application number
GB5243573A
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.)
DAHLQUIST J G
Original Assignee
DAHLQUIST J G
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 DAHLQUIST J G filed Critical DAHLQUIST J G
Publication of GB1435623A publication Critical patent/GB1435623A/en
Expired legal-status Critical Current

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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

1435623 Loud-speakers J G DAHLQUIST 12 Nov 1973 [29 Nov 1972] 52435/73 Headings H4J and H4X In a multiple permanent magnet transducer assembly the bais unit is mounted in its own enclosure and one or more h.f. transducers are mounted in an acoustically transparent compartment outside the bais enclosure by means presenting minimal frontal area and allowing almost all of the transducer to be surrounded by free space. This arrangement prevents the formation of secondary sound sources at discontinuities, particularly the edges, of baffles carrying h.f. transducers which would otherwise produce time delay and intermodulation distortion. The h.f. units are staggered, Fig. 3, according to response time, the fastest being rearmost, so that sounds from each unit reach the on-axis listener at the same instant. The distances may be determined empircally using a square wave source covering frequencies of two adjacent units and determining by microphone and oscilloscope when the reproduced square wave has the best shape. The rear face of the compartment may be acoustically semitransparent to reduce rearward radiation. In a modification (Figs. 5, 6, not shown) a single support for all h.f. units is stepped to the appropriate dimensions.
GB5243573A 1972-11-29 1973-11-12 Multiple driver dynamic loud speaker Expired GB1435623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00310535A US3824343A (en) 1972-11-29 1972-11-29 Multiple driver dynamic loud speaker

Publications (1)

Publication Number Publication Date
GB1435623A true GB1435623A (en) 1976-05-12

Family

ID=23202948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5243573A Expired GB1435623A (en) 1972-11-29 1973-11-12 Multiple driver dynamic loud speaker

Country Status (3)

Country Link
US (1) US3824343A (en)
CA (1) CA983404A (en)
GB (1) GB1435623A (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639757B2 (en) * 1975-03-03 1981-09-16
US4199657A (en) * 1978-07-21 1980-04-22 Harvey Lane Planar sound reproducing speaker system
US4509615A (en) * 1980-02-04 1985-04-09 Hruby John O Multi-chamber enclosure for loudspeakers
US4591020A (en) * 1980-02-04 1986-05-27 Hruby Jr John O Loudspeaker enclosure with isolation of loudspeaker vibration
US4421949A (en) * 1980-05-05 1983-12-20 Eberbach Steven J Electroacoustic network
US4450322A (en) * 1981-11-02 1984-05-22 Wilson David A Adjustable speaker system and method of adjustment
DE3380619D1 (en) * 1982-03-31 1989-10-26 Pioneer Electronic Corp Compound speaker system
US4882760A (en) * 1983-12-02 1989-11-21 Yee Raymond M Sound reproduction system
AU3745585A (en) * 1983-12-02 1985-06-13 R.M. Yee Sound reproduction system
FR2609853B1 (en) * 1987-04-23 1989-04-21 Pillerault Clement Eloise HIGH FIDELITY ELECTROACOUSTIC POWER TRANSDUCER WITH STAGE DIFFUSION SYSTEM
US4885782A (en) * 1987-05-29 1989-12-05 Howard Krausse Single and double symmetric loudspeaker driver configurations
US5751821A (en) * 1993-10-28 1998-05-12 Mcintosh Laboratory, Inc. Speaker system with reconfigurable, high-frequency dispersion pattern
JP3063639B2 (en) * 1996-09-26 2000-07-12 ヤマハ株式会社 Speaker device
US5979591A (en) * 1998-10-06 1999-11-09 Harrison; James B. Collapsible portable speaker enclosure
JP3992974B2 (en) * 2001-01-22 2007-10-17 義人 丸尾 Speaker device
JP4935091B2 (en) * 2005-05-13 2012-05-23 ソニー株式会社 Sound reproduction method and sound reproduction system
JP4359779B2 (en) * 2006-01-23 2009-11-04 ソニー株式会社 Sound reproduction apparatus and sound reproduction method
ATE463027T1 (en) * 2006-01-27 2010-04-15 Univ South Florida ACCELERATED AGING PROCESS FOR ACOUSTIC INSTRUMENTS
US7977555B2 (en) * 2006-01-27 2011-07-12 University Of South Florida Method of modifying the frequency response of a wooden article
US8662245B1 (en) 2006-01-27 2014-03-04 University Of South Florida Frequency response treatment of wood paneling
KR101234087B1 (en) 2006-02-01 2013-02-19 소니 주식회사 Audio reproducing system and method thereof
JP4946305B2 (en) * 2006-09-22 2012-06-06 ソニー株式会社 Sound reproduction system, sound reproduction apparatus, and sound reproduction method
JP4841495B2 (en) * 2007-04-16 2011-12-21 ソニー株式会社 Sound reproduction system and speaker device
US8036410B2 (en) * 2008-03-10 2011-10-11 Robert Bosch Gmbh Offset baffles for acoustic signal arrival synchronization
US8422721B2 (en) * 2010-09-14 2013-04-16 Frank Rizzello Sound reproduction systems and method for arranging transducers therein
HK1219390A2 (en) * 2016-07-28 2017-03-31 Siremix Gmbh Endpoint mixing product
US10284945B2 (en) * 2016-11-30 2019-05-07 Eugene Julius Christensen Air motion transformer passive radiator for loudspeaker
USD905660S1 (en) * 2018-09-13 2020-12-22 Dynaudio Holding A/S Baffles for loudspeaker
USD895573S1 (en) * 2019-03-13 2020-09-08 Dynaudio Holding A/S Baffles for loudspeaker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2217279A (en) * 1938-07-23 1940-10-08 Rca Corp Acoustic apparatus
DE1042024B (en) * 1956-06-23 1958-10-30 Siemens Ag Loudspeaker arrangement with several loudspeakers arranged in a row or row
FR1216851A (en) * 1959-02-17 1960-04-28 Sound pipe player
US3105569A (en) * 1961-05-16 1963-10-01 Atuk Corp Loud-speaker assembly
FR1339664A (en) * 1962-08-31 1963-10-11 Sound reproducer
US3385929A (en) * 1964-07-23 1968-05-28 Clairtone Sound Corp Ltd Support for a high fidelity stereophonic system
US3666041A (en) * 1970-07-13 1972-05-30 Alan A Engelhardt Speaker enclosure

Also Published As

Publication number Publication date
US3824343A (en) 1974-07-16
CA983404A (en) 1976-02-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee