recording preamplifier

例句：

1. 1. The recordingpreamplifier is essential for thequality of the audio signal.
   录音前置放大器对于音频信号的质量至关重要。
2. 2. The engineerused a recording preamplifier to boost the volumeof the sound.
   工程师使用一个录音前置放大器来提高声音的音量。
3. 3. The recordingpreamplifier was designed to improvethe clarity and resolution of the audio signals.
   录音前置放大器被设计用来提高音频信号的清晰度和分辨率。