Electro acoustic transducer and loudspeaker

Details Electro acoustic transducer and loudspeaker Electro acoustic transducer and loudspeaker

1989-06-02

1990-10-23

Ng, Jin F.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381184, 381186, 381192, H04R 900

Patent

active

049658395

ABSTRACT:
A loudspeaker transducer has a coil (5) and a metal dome (11) with a skirt (13) arranged concentrically in a magnetic gap between pol pieces (2 and 4). The skirt (13) is inductively coupled to the coil (5) but is mechanically independent of the coil former tube (6). The tube (6) is connected to a main low frequency cone (9) and to a short concentric additional cone (16). A fixed element (14) providing phase correction and/or horn loading is fixed to the center pole piece (4) in front of the dome (11) and within the tube (6). The member (14) and tube (6) co-operate acoustically.

REFERENCES:
patent: 4525604 (1985-06-01), Frye
patent: 4547632 (1985-10-01), Bryson

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