low noise preamplifier

例句：

1. 1. The new audio system has a low noise preamplifier that can reduce background noise significantly.
   新音频系统配备了一个低噪声前置放大器，可以显著减少背景噪音。
2. 2. In the recording studio, the low noise preamplifier is essential for maintaining a clean sound.
   在录音棚里，低噪声前置放大器对于保持声音清晰至关重要。
3. 3. The engineer used the low noise preamplifier to enhance the clarity of the vocals during the mixing process.
   工程师使用低噪声前置放大器来提高混音过程中的歌声清晰度。