Almost All You Need To Know About Power Amplifiers


High power amplifiers can be found in the heart of every high end audio system currently. This is due to the fact that we see on the market increasingly more powerful speakers appearing and in order to make sure that they can output the energy they are capable of, such amplifiers have to be used. If you are someone that is looking for an amplifier and you don't know anything about them, it can be a little difficult to just pick one and state that it will be the right one to purchase. That is why in the following minutes you will learn more about amplifiers and how to select the right one for you.

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So, what a high power amplifier does is that they have a low power audio signal converted into a high signal. That signal will thus be sufficient so it can make the speaker go really loud. Yet for that to be possible, there are a few components that the amp is using in order to have that high signal generated. Some of them number bi-polar, FET transistors but there can also be tubes involved.

Amplifiers are quickly transforming the audio industry making them a must-have for each home. As the demand for high quality sound instruments continues to go up, the demand for these amplifiers is also expected to go up in the future years.

20 to 30 years back, tube amplifiers were very common. But if there is one downside to them, that is the fact that they have a very high level of distortion. To be technical on this, using these tubes you may have the signal infused with higher harmonics. Even such, these are still very popular these days. What people are saying about them is that they feature a warm sound, compared to the freezing sound that solid state amplifiers have.

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Another black dot is the fact that they have reduced power efficiency. Most of the times, the power of the amps is just gone away through the temperature and only a small part of it will actually get used for audio power. And let us not talk about the prices. These tubes are very costly to make so that is why these days you will see them easily changed by the solid state amplifiers.

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Now let us talk about solid state amplifiers a bit. They are the ones that are very easily replacing the tubes with semi-conductor elements. They also have a, compared to the tubes, a system which allows them to filter the harmonic distortion and reduce it as much as possible. Out of all the amplifiers out there, the solid state ones are currently regarded as the very best. But they do have a drawback that is also the one that the tube amps have: their low efficiency. On top of the fact that they are big, they also need a lot of cooling in order to function properly.

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Because of the fact the high audio distortion is a big problem, in the new amplifiers, there is feedback implemented. What this means is that the transmission that is being amplified is compared with the low level one and this way, the errors are corrected. One of the architectures that is using this is called the Class-T. So in the end, utilizing it, very small amplifiers can be made which acquire a very high sound quality.

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