FR979919A - Dual speaker - Google Patents

Dual speaker

Info

Publication number
FR979919A
FR979919A FR979919DA FR979919A FR 979919 A FR979919 A FR 979919A FR 979919D A FR979919D A FR 979919DA FR 979919 A FR979919 A FR 979919A
Authority
FR
France
Prior art keywords
dual speaker
speaker
dual
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
Other languages
French (fr)
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.)
PEERLESS FABRIKKERNE
Original Assignee
PEERLESS FABRIKKERNE
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 PEERLESS FABRIKKERNE filed Critical PEERLESS FABRIKKERNE
Application granted granted Critical
Publication of FR979919A publication Critical patent/FR979919A/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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively 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)
FR979919D 1948-02-04 1949-02-03 Dual speaker Expired FR979919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK979919X 1948-02-04

Publications (1)

Publication Number Publication Date
FR979919A true FR979919A (en) 1951-05-07

Family

ID=8156368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979919D Expired FR979919A (en) 1948-02-04 1949-02-03 Dual speaker

Country Status (2)

Country Link
BE (1) BE487179A (en)
FR (1) FR979919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087170B (en) * 1955-02-19 1960-08-18 Akustische Loudspeaker arrangement for radio and television equipment with at least one woofer and at least one tweeter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087170B (en) * 1955-02-19 1960-08-18 Akustische Loudspeaker arrangement for radio and television equipment with at least one woofer and at least one tweeter system

Also Published As

Publication number Publication date
BE487179A (en)

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