Amplifier - Wikipedia
网页An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input ...
Amazon.com: Power Amplifiers - Power Amplifiers / Stage
网页Gemini Sound XGA-3000 Class AB 2X 200W Professional-Grade DJ Amplifier - Multizone Power Amplifiers for Live Sound, Rack Mount Design, Ideal for Karaoke & Mobile Rigs
放大器 - 维基百科，自由的百科全书
网页放大器（英語： amplifier ）或電子放大器（electronic amplifier）是一種可以增加訊號（隨時間變化的電壓或電流）功率的電子設備。 它是一種 雙埠 電子電路，使用來自 電源供應器 的電力來增加施加到其輸入端訊號的 振幅 （電壓或電流的幅度），從而在其輸出端 ...
Introduction to the Amplifier - Basic Electronics Tutorials and …
网页2013年7月16日 · An amplifier is an electronic device or circuit which is used to increase the magnitude of the signal applied to its input. Amplifier is the generic term used to describe a circuit which produces and increased version of its input signal.
Best stereo amplifiers 2024: the 8 best integrated amps ... - What …
网页2024年8月15日 · An amplifier is the centerpiece of a system, through which music flows both into and out, so it's crucial to get the best performer and partner for your source and speakers that you can afford – and that's where this carefully curated list comes in.
Amplifier | Audio, Signal Processing & Volume Control
网页Amplifier, in electronics, device that responds to a small input signal (voltage, current, or power) and delivers a larger output signal that contains the essential waveform features of the input signal. Amplifiers of various types are widely used in …
Amplifiers - Khan Academy
网页Amplifiers make signals bigger. Amplification is often the most basic operation of an electronic circuit. There are many kinds of amplifier designs. We will describe the operational amplifier, the building block of most analog electronics.
AMPLIFIER中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页noun [ C ] uk / ˈæm.plɪ.faɪ.ə r/ us / ˈæm.plə.faɪ.ɚ / (informal amp) Add to word list. an electrical device that makes sounds louder. 扩音器，扬声器. (amplifier在剑桥英语-中 …
Amazon.com: Amplifier
网页Amazon.com: Amplifier. 1-16 of over 10,000 results for "Amplifier" Results. Check each product page for other buying options. Overall Pick. AK45 Stereo Audio Amplifier,300W Home 2 Channel Wireless Bluetooth 5.0 Power Amplifier System, Home Amplifiers FM Radio, USB, SD Card, with Remote Control Home Theater Audio Stereo System. 1,347.
How Amplifiers Work - HowStuffWorks
网页2024年5月17日 · Amplifiers create a pathway for electric charge to flow by manipulating zones of free electrons and holes, enhancing audio signals for output to speakers. When people refer to "amplifiers," they're usually talking about stereo components or musical equipment. But this is only a small representation of the spectrum of audio amplifiers.