公开(公告)号：US20070189554A1

公开(公告)日：2007-08-16

申请号：US10585897

申请日：2005-01-12

申请人： David Innis ,  Joseph Wright

发明人： David Innis ,  Joseph Wright

IPC分类号： H04R3/00

CPC分类号： H04R3/12 ,  H04R3/00

摘要： An audio speaker (10) including an electrical circuit that is interconnected within the speaker circuitry within the speaker enclosure (14) to selectively alter the resistance of the speaker (10), such as from 4 ohms to 8 ohms. It therefore allows the owner to use the speaker as a replacement speaker for both 4 ohm and 8 ohm amplifiers. It also allows the owner to engage additional speakers to an amplifier (58) without causing damage to the amplifier (58). In a preferred embodiment, the speaker includes two drivers (18/22) that are electrically engaged in parallel in the speaker circuit, wherein a plurality of capacitors (44) are engaged in parallel within the speaker circuit, and an electrical switch is engaged to selectively shunt electrical current around said plurality of capacitors (44) to alter the resistance of the speaker.

摘要翻译： 音频扬声器（10）包括在扬声器外壳（14）内的扬声器电路内互连的选择性地改变扬声器（10）的电阻（例如从4欧姆到8欧姆）的电路。 因此，它允许所有者使用扬声器作为4欧姆和8欧姆放大器的替代扬声器。 它还允许所有者将额外的扬声器接合到放大器（58）而不会损坏放大器（58）。 在优选实施例中，扬声器包括在扬声器电路中并联电接合的两个驱动器（18/22），其中多个电容器（44）在扬声器电路内并联，并且电开关接合到 选择性地分流所述多个电容器（44）周围的电流以改变扬声器的电阻。