JPS57132498A - Low pass filter for multi-way type speaker system - Google Patents

Low pass filter for multi-way type speaker system

Info

Publication number
JPS57132498A
JPS57132498A JP1941781A JP1941781A JPS57132498A JP S57132498 A JPS57132498 A JP S57132498A JP 1941781 A JP1941781 A JP 1941781A JP 1941781 A JP1941781 A JP 1941781A JP S57132498 A JPS57132498 A JP S57132498A
Authority
JP
Japan
Prior art keywords
speaker
low pass
grill
sound pressure
pass filter
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.)
Pending
Application number
JP1941781A
Other languages
Japanese (ja)
Inventor
Osamu Yashima
Shigenori Shibata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1941781A priority Critical patent/JPS57132498A/en
Publication of JPS57132498A publication Critical patent/JPS57132498A/en
Pending 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 

Abstract

PURPOSE:To obtain a low pass type filter having a steep attenuating characteristic simply, by suitably setting an aperture area of a front grill located in front of a speaker. CONSTITUTION:Front grill 1 having a plurality of lattice shaped openings 1a is adhered to a frame of a low frequency speaker in a multi-way speaker system. Thus, the sound pressure characteristics can be a great dip by taking some frequency range as a center. This decrease in the sound pressure has a relation to open factor of the grill 1, and when the opening factor of the grill 1 is decreased, the attenuation of the sound pressure characterictics start from lower frequency. A low pass filter characteristic in which lower frequency band only is passed through and other bands are attenuated can simply be obtained, and an adverse effect of a low frequency reproduction speaker on a high frequency reproduction speaker can be avoided.
JP1941781A 1981-02-09 1981-02-09 Low pass filter for multi-way type speaker system Pending JPS57132498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1941781A JPS57132498A (en) 1981-02-09 1981-02-09 Low pass filter for multi-way type speaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1941781A JPS57132498A (en) 1981-02-09 1981-02-09 Low pass filter for multi-way type speaker system

Publications (1)

Publication Number Publication Date
JPS57132498A true JPS57132498A (en) 1982-08-16

Family

ID=11998678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1941781A Pending JPS57132498A (en) 1981-02-09 1981-02-09 Low pass filter for multi-way type speaker system

Country Status (1)

Country Link
JP (1) JPS57132498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022106857A (en) * 2014-09-30 2022-07-20 アップル インコーポレイテッド Loudspeaker with reduced audio coloration caused by surface reflection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022106857A (en) * 2014-09-30 2022-07-20 アップル インコーポレイテッド Loudspeaker with reduced audio coloration caused by surface reflection
US11818535B2 (en) 2014-09-30 2023-11-14 Apple, Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface

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