preamp

简明释义

英[ˈpriːˌæmp]美[ˈpriːˌæmp]

n. 前置放大器（等于 preamplifier）

英英释义

单词用法

同义词

反义词

例句

1.Therefore chosen as a low-noise NE5532 preamp can be a very good noise suppression device itself.

因此选择了NE5532作为低噪声的前级放大，能够很好的抑制器件的本身噪声。

2.Placing the electrometer in the volts mode and then enabling external feedback switches the feedback circuit from an internal network to a feedback circuit connected to the preamp output.

将静电计置于电压模式，然后打开外部反馈，就把反馈电路从内部网络切换到连在前置放大器输出端的外部反馈网络上。

3.Can I change the preamp cathode or plate resistors to change the gain or tone of my amp?

通过改变前置放大级的阴极电阻或者屏极电阻，是不是就可以改变增益或者音色？

4.The relatively low sensitivity improvement obtained with this preamp could be due to impedance mismatching on the input stage.

相对较低的灵敏度得到改善前置这可能是由于阻抗不匹配的输入阶段。

5.As a preamp it is at least as good as any $3000 preamp I've ever heard.

作为前级它最少可以比美我听过的任何3000美元的前级。

6.The parts that were changed in the preamp itself.

这些部件被改变放大器本身。

7.The preamp has much more tracks going to the heads (right side) than to the HDA (left side), it's because HDD can work only with one "head" (pair of read an write elements) at a time.

前置有更多的轨道去头（右侧），而不是在HDA（左侧），这是因为硬盘只能有一个工作的“头”（读一写的一次元素）对。

8.Placing the electrometer in the volts mode and then enabling external feedback switches the feedback circuit from an internal network to a feedback circuit connected to the preamp output.

将静电计置于电压模式，然后打开外部反馈，就把反馈电路从内部网络切换到连在前置放大器输出端的外部反馈网络上。

9.The Custom Shop Duende Head puts out 30 watts of rich tube tone from its pair of 6L6 power tubes and five 12AX7 preamp tubes - a solid foundation for a feature-packed amp!

魔力风俗店头拿出其对6L6功率管和五个12AX7管前置管30瓦的丰富管音-一个坚实的基础功能丰富放大器！

10.I bought a new preamp 前置放大器 for my home audio system to enhance the sound clarity.

我为我的家庭音响系统购买了一个新的前置放大器 preamp来增强音质清晰度。

11.Make sure to adjust the gain on the preamp 前置放大器 for optimal performance.

确保调整前置放大器 preamp上的增益，以获得最佳性能。

12.Using a tube preamp 前置放大器 can add warmth to the sound of your recordings.

使用真空管前置放大器 preamp可以为你的录音增添温暖感。

13.The recording studio uses a high-quality preamp 前置放大器 to ensure the best sound quality.

这家录音室使用高质量的前置放大器 preamp来确保最佳音质。

14.I connected my guitar to the preamp 前置放大器 to boost the signal before it reaches the amplifier.

我把吉他连接到前置放大器 preamp，以在信号到达放大器之前增强其信号。

作文

In the world of audio technology, the term preamp refers to a device that amplifies low-level signals before they are sent to a power amplifier. This process is crucial in ensuring that the sound quality remains high and that the audio signals are strong enough for further amplification. A preamp is particularly important in various audio applications, including recording studios, home theaters, and live sound systems. The role of a preamp cannot be overstated, as it serves as the first stage in the audio signal chain, making it essential for achieving optimal sound performance.When we consider the function of a preamp, it is helpful to understand its position in the audio signal path. Typically, an audio source such as a microphone or an electric guitar generates a weak signal that needs boosting. Without a preamp, these weak signals would be too quiet to be processed effectively by other audio equipment like mixers or power amplifiers. The preamp takes this weak signal and amplifies it to a level that can be managed by the rest of the audio system.There are various types of preamps, each designed for specific applications. For instance, a microphone preamp is tailored to handle the unique characteristics of microphone signals, while a phono preamp is specifically designed for turntables, addressing the lower output levels and RIAA equalization required for vinyl playback. These specialized preamps ensure that the audio signals are not only amplified but also properly conditioned for the next stages of processing.One of the critical aspects of a preamp is its impact on sound quality. The type of components used in a preamp can significantly influence the overall audio experience. High-quality preamps often employ premium capacitors, resistors, and op-amps to achieve a clearer and more accurate sound. Audiophiles frequently invest in standalone preamps to enhance their home audio systems, as these devices can provide a noticeable improvement over built-in options found in many consumer electronics.Moreover, the design of a preamp can vary greatly, with some models featuring tube technology, which is known for its warm and rich sound character, while others use solid-state components for a cleaner and more precise output. The choice between these types depends largely on personal preference and the specific requirements of the audio setup.In recent years, digital preamps have also emerged, integrating with digital audio workstations (DAWs) and offering features like onboard DSP (digital signal processing). These modern preamps provide flexibility and convenience for musicians and audio engineers, allowing for real-time adjustments and effects processing right at the input stage.In conclusion, understanding the role and functionality of a preamp is vital for anyone involved in audio production or consumption. Whether you are a musician looking to capture the best sound from your instruments or an audiophile aiming to optimize your listening experience, the preamp plays a pivotal role in shaping the audio landscape. By ensuring that signals are adequately amplified and conditioned, preamps help deliver the high-fidelity sound that listeners desire, making them an indispensable part of any audio system.

在音频技术的世界中，术语preamp指的是一种在信号被发送到功率放大器之前放大低电平信号的设备。这个过程对于确保声音质量保持高水平以及音频信号足够强大以进行进一步放大至关重要。preamp在各种音频应用中尤为重要，包括录音室、家庭影院和现场音响系统。preamp的作用不可低估，因为它作为音频信号链中的第一阶段，对于实现最佳声音表现至关重要。当我们考虑preamp的功能时，了解其在音频信号路径中的位置是非常有帮助的。通常，音频源如麦克风或电吉他会产生一个需要增强的弱信号。如果没有preamp，这些弱信号将太安静，无法有效地被其他音频设备处理，如混音器或功率放大器。preamp将这个弱信号放大到可以由音频系统的其余部分管理的水平。有各种类型的preamp，每种都针对特定应用进行设计。例如，麦克风preamp专门用于处理麦克风信号的独特特性，而唱盘preamp则专门用于唱盘，解决了低输出水平和RIAA均衡所需的问题。这些专业的preamp确保音频信号不仅得到放大，而且还为后续处理阶段做好适当的调理。preamp的一个关键方面是其对声音质量的影响。preamp中使用的组件类型会显著影响整体音频体验。高质量的preamp通常采用优质的电容器、电阻器和运算放大器，以实现更清晰、更准确的声音。音响发烧友经常投资于独立的preamp，以增强他们的家庭音频系统，因为这些设备可以提供明显优于许多消费电子产品中内置选项的改善。此外，preamp的设计可能差异很大，一些型号采用真空管技术，这种技术以其温暖和丰富的声音特性而闻名，而另一些则使用固态组件以获得更清晰、更精确的输出。两者之间的选择主要取决于个人偏好和音频设置的具体要求。近年来，数字preamp也出现了，与数字音频工作站（DAW）集成，提供诸如板载DSP（数字信号处理）等功能。这些现代preamp为音乐家和音频工程师提供了灵活性和便利性，可以在输入阶段实时调整和效果处理。总之，了解preamp的角色和功能对于任何参与音频制作或消费的人来说都是至关重要的。无论你是希望从乐器中捕捉最佳声音的音乐家，还是希望优化听音体验的音响发烧友，preamp在塑造音频领域中都扮演着关键角色。通过确保信号得到充分放大和调理，preamp帮助提供听众所渴望的高保真声音，使其成为任何音频系统中不可或缺的一部分。