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5 things you need to know about amplifiers

Amplifiers are great as they help you increase the volume of your sound. If you are curious about these units, here are some things to know:

How the units amplify sound

The best way to understand how they work is to think of them as servo-controlled “valves” that control the energy stored in the outlet and release it in measured amounts to your speakers.

Amplifier classes

There are many classes of amps that vary depending on their brand and distortion levels. Some of the most common classes are:

A class– Here current is constantly flowing through the output transistors even if there is no incoming audio signal. Because of this, the output transistors are always on. The nice thing about a class A amp is that it has the lowest distortion. Its main flaw is that it is inefficient.

Class B: use output transistors that turn on and off. If there is no signal, no current flows through the output transistors. While they are more efficient than class A amplifiers, they tend to have non-linear distortions.

In addition to classes A and B, there are also class A / B and class D amplifiers.

Amp names do not represent performance ratings

The names are used to differentiate the different types of amplifier circuits; therefore if you find an amplifier written with “D”, this does not mean that it is class D. In most cases, it means that the unit is of a “digital” design.

What is the difference between digital and analog amplifiers?

There are several differences. An analog amplifier regulates the transistors to deliver power from the amplifier’s power supply to the speakers in such a way that it exactly mimics the incoming waveform. Digital amplifiers, on the other hand, use a high-frequency switching circuit to modulate the output devices.

What should you consider when buying an amplifier?

In order for you to buy the right unit, you need to consider a number of things. One of the factors to consider is the class of the amplifier. As a general rule of thumb, you should buy a unit that is efficient and at the same time has less sound distortion.

You should also consider the price. It is good to choose the best unit that your money can afford. You should avoid cheap amps as they tend to break down quickly. They also don’t give you the sound quality you deserve.

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