WOOFER DEVICE, AND TELEVISION RECEIVER

WOOFER DEVICE, AND TELEVISION RECEIVER

PROBLEM TO BE SOLVED: To provide an woofer device which includes a bass reflex port, the woofer device having further improved sound pressure enhancement effects of a low-pitched sound range by the bass reflex port. SOLUTION: In the woofer device X, a speaker cabinet 2 in which a speaker unit 1 is p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HIROSHIMA YUKIMI
Format: Patent
Sprache:eng
Schlagworte:
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an woofer device which includes a bass reflex port, the woofer device having further improved sound pressure enhancement effects of a low-pitched sound range by the bass reflex port. SOLUTION: In the woofer device X, a speaker cabinet 2 in which a speaker unit 1 is provided, includes the bass reflex port 3 including a port 31 formed on a front face 2a of the speaker cabinet 2 and a duct 32 formed inward from the port 31. In such a case, a resonance tube 4 is provided of which the one terminal 41 is opened inside the speaker cabinet 2 and of which the other terminal 42 is closed. A tube length Lr of the resonance tube 4 is a 1/4 wavelength of a resonant frequency of the bass reflex port 3. COPYRIGHT: (C)2011,JPO&INPIT