Home Audio Amplifier

When people say the world amplifier they are usually either referring to those big black boxes blasting sound on the concert stage or maybe the devices installed trucks that drive through cities blaring messages. While those are, of course, examples of amplifiers, amplifiers are actually all around us. In fact, if we did not have amplifiers in most of our electronic, sound producing products, the world would be a very quiet place. And only your crotchety neighbor downstairs sees that as a good thing.

So how did amplifiers come about anyway? The first audio amplifier was invented in 1906 by a gentleman named Lee De Forest. He invented the triode vacuum tube as well, for use in early radios. Eventually, a triode was combined with an audio amplifier and that led to the first AM radio. These days, though De Forest is not a household name, he would surely be proud to know that a variation of his invention is omnipresent in households worldwide.

Amplifiers are present in televisions, CD players, DVD players, radios, computers and anything else you can think of that uses speakers to make sound. Home sound amplifiers are used to amplify sound throughout the home, like a home PA system. They basically work just like sound waves work with our ears. When something vibrates in our ears, it moves air particles, and they then move until our ears feel the vibration and translates them into an electrical signal and our brain perceives the sound. Home sound amplifiers work essentially the same way.

In a home sound amplifier, sound moves a microphone diaphragm back and forth, and the microphone then translates that movement into an electrical signal, just like our brains when it comes to sound. The electrical signal created by the home sound amplifier fluctuates to serve as a representation of the compression and rarefactions of the sound wave. Next in the process of home sound amplification, a recorder encodes the electrical signal in a pattern on some sort of a medium (i.e. tape, compact disc, etc.) Finally, a player, like a cassette player or compact disc player interprets the electrical signal in a way that our brains can understand, thus recreating the air pressure fluctuations that the microphone originally recorded. In this way, sound is recorded, transmitted, and yes, amplified. The amplifiers main job is to amplify the sound of the signal as it is being translated, otherwise the sound, when reinterpreted, would be of extremely low quality.

Home sound amplifiers can be used in the home for many purposes, especially in the home theatre. One popular usage of home sound amplifiers is to pipe music throughout the home from a central source. That central source could be a cassette player, a compact disc player, a radio, satellite radio, or even something from the internet like the music streaming websites Pandora or Last.fm. Home audio amplifiers help transmit this sound all around the home, creating an atmosphere worthy of a night club or a Hollywood music mogul’s mansion.

Do it yourself devotees have even created their own amplifiers and translated them to use as home audio amplifiers. Home audio amplifiers not made through the major electronics and sound companies can still go for upwards of four or five hundred dollars just for one amplifier.

Companies like Knoll Systems, Russound, and Xantech are known for selling high quality amplifiers. When looking for superior sound in a home audio amplifier system, be sure to consult with your salesperson or an electronics expert before making the purchase. Depending on your use for your home audio system, you may have different needs.

This Home Audio Amplifier Review is Written/Updated on Oct 4th, 2009 and filed under Consumer Electronics. Both comments and pings are currently closed.

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