首页>
外国专利>
High back-EMF high pressure subwoofer having small volume cabinet low frequency cutoff and pressure resistant surround
High back-EMF high pressure subwoofer having small volume cabinet low frequency cutoff and pressure resistant surround
展开▼
机译:高背电动势高压超低音扬声器,具有小体积的机箱低频截止和耐压环绕
展开▼
页面导航
摘要
著录项
相似文献
摘要
A subwoofer cabinet having a volume less than 1 ft3; axially aligned openings in opposed cabinet walls; first and second cages mounted on respective ones of the walls in alignment with the openings; a voice coil driven driver including an annular 225 oz. magnet affixed to the first cage; a stationary pole piece extending through the magnet and defining a magnetic gap therebetween; a voice coil mounted on a cylindrical voice coil former positioned within the gap; a cone affixed to one end of the former; a first flexible surround secured to the outer end of the cone and attached at its periphery to the first cage; a flexible spider secured to the former and at its outer periphery to the first cage; a drive amplifier capable of delivering 2,700 watts to a nominal 4 ohm resistive load and swinging 104 volts for delivering (+)&Dgr;v and (−)&Dgr;v drive signals to the voice coil for driving the voice coil driven driver through a peak-to-peak stroke of about 2.5″ while generating a large back emf sufficient to counter the applied emf and minimize current flow in the voice coil.
展开▼
机译:体积小于1 ft 3 Sup>的超低音音箱;在相对的橱柜壁上轴向对齐的开口;第一和第二笼子与开口对齐地安装在相应的壁上。音圈驱动的驱动器,包括环形225盎司。磁铁固定在第一笼上;固定极靴,其延伸穿过磁体并在它们之间限定磁隙;音圈安装在位于间隙内的圆柱形音圈上;锥体固定在前者的一端;第一柔性包围物,其固定到所述圆锥体的外端,并在其外围附接到所述第一保持架;固定在前者上并且在其外围固定在第一笼上的柔性蜘蛛;一个驱动放大器,能够向额定的4欧姆阻性负载提供2700瓦的功率,并摆动104伏,以将(+)v和(-)v的驱动信号传输到音圈,从而驱动音圈驱动的驱动器通过峰值到峰值约2.5″同时产生一个大的反电动势,足以抵消施加的电动势并使音圈中的电流最小。
展开▼