| 摘要 |
PCT No. PCT/GB93/01509 Sec. 371 Date Jan. 9, 1995 Sec. 102(e) Date Jan. 9, 1995 PCT Filed Jul. 16, 1993 PCT Pub. No. WO94/03024 PCT Pub. Date Feb. 3, 1994A loudspeaker has a pole (6) and a surrounding magnet (3) which together define an annular gap (7). A voice coil (12) supported on a tubular former (8) is disposed within the gap (7) as is a conductive skirted dome (13). The dome (13) is supported upon an insulating gasket (14) providing three arcuate points of support and a phase plug (16) extends through a central opening (15) in the dome (13). The dome (13) and phase plug (16) are preferably separated by a second gasket (27) which may or may not be bonded to both and the phase plug (16) suitably includes an integral horn (20) extending beyond the former(8).
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