Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1989-10-10
1991-12-17
Isen, Forester W.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
H04R 2500
Patent
active
050739484
ABSTRACT:
A midrange loudspeaker driver of the cone diaphragm and magnetic coil type having a reflection free zone immediately behind the diaphragm and within the driver to significantly reduce internal reflections of the diaphragm's rear waves resulting in improved clarity and transparency of sound.
REFERENCES:
patent: 2722991 (1955-11-01), Carbonneau
patent: 2998496 (1961-08-01), Hassan
patent: 3150441 (1964-09-01), Kloss
patent: 4256198 (1981-03-01), Kawakami et al.
Block Robert B.
Isen Forester W.
McGeary III M. Nelson
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