论文部分内容阅读
双功放驱动(Bi-Amp)是由双线分音连接(Bi-Wire)发展而来的。虽然“Bi-Wire”有着不少的优点,但仍不能完全抵消低音单元音圈运动时产生的反电动势对高频信号的调制作用。此外,尽管双线连接减小了高、低频之间的互调失真,但功放输出的仍是全频带的大电流信号,互调失真仍然存在。而“Bi-Amp”则是使用两台功放并用两对喇叭线分别连接到音箱中的高、低音单元上,由于各频段的驱动功放完全分开,就完全消除了前述反电动势造成的干涉现象,互调失真也被进一步降低。
Bi-amp driver (Bi-Wire) was developed from the two-wire sub-wire (Bi-Wire). Although “Bi-Wire” has many advantages, it still can not completely offset the modulation effect of the back-EMF generated by the bass unit’s voice coil on the high-frequency signal. In addition, although the two-wire connection reduces the intermodulation distortion between high and low frequencies, the amplifier still outputs large-band full-range current signals and intermodulation distortion still exists. The “Bi-Amp” is the use of two amplifiers and two speakers were connected to the speakers in the bass unit, due to the full separation of the drive amplifier in each band, it completely eliminates the interference caused by the back EMF, Intermodulation distortion is further reduced.