论文部分内容阅读
频率响应是衡量扩音机电气性能好坏的一项重要指标。一般扩音机对低频和高频(指在音频范围内相对于中频而言)信号的放大要比中频小,这就使得扩音机频率响应指标不高。一部好的扩音机在音频范围内应具有较平直的
Frequency response is a measure of the performance of the amplifier is an important indicator of good or bad. General megaphone for low frequency and high frequency (referring to the audio frequency range relative to IF) signal amplification is smaller than the IF, which makes the megaphone frequency response index is not high. A good megaphone should be flat in the audio range