HOW AN AMP WORKS COURTESY OF MOBILE DYNAMICS

摘要

There's nothing "basic" about how an amplifier works. This article is directed at the car audio enthusiast who might wonder how an amplifier does what it does. We're not going to get into electron flow, the history of transistors or the inner workings of a transformer; rather we're going to look at what an amplifier does with the signal it receives from a source unit in a general and hopefully, easy-to-grasp way. So here we go. As one of the oldest car audio schools in America we've had the privilege of welcoming new students into our classrooms for many years. We ask our new students what they think an amplifier does with the signal it receives from the source unit. Like a lot of people out there who have a general interest in sound and sound equipment, our students think that an amplifier boosts or magnifies a small signal coming into it. This is true to some extent, but in reality amplifiers create a new signal that is a COPY of the original signal. Let's look at an analogy.