How to choose AV- amplifier for home theater

How to choose AV- amplifier for home theater In the category Home Theater Systems Many people are interested in knowledge and learning about many subjects, this knowledge may be vital at some point in your life, attention enough, and dive into more detail more articles and learn more information about How to choose AV- amplifier for home theater.

How to choose AV- amplifier for home theater – Purpose AV- amplifier and its main parameters . Recommendations when choosing AV- amplifier. Installation and operation precautions .

AV- amplifier is an important part of a home theater . After all, he is responsible for the entire process , which is associated with audio, provides control of the entire system , provides power sound speaker system and performs video switching .

Power amplifier – it is the most ambiguous and interpreted incorrectly parameter reproducing equipment for the home . Is incident in that for estimating the output power , different manufacturers use different indices . These figures include the value of the impedance speaker or as it is called – the impedance measured frequency or range of frequencies. Someone even uses value total harmonic distortion.

According to generally accepted standards of the signal must be in the range 20-20000 Hz with a value of impedance 8 ohms and THD value of about 1 %. Need to be proficient enough information because it is possible that the amplifier parameters with 100 W / 1 kHz at 6 ohms will not be as powerful as the amplifier parameters 50 watts @ 8 ohms , and audio- range 20-20000 Hz .

First you need to decide how much power you need . Amplifier that has 30 watts per channel , can “shake” the most unpretentious speaker to such power that you can burst eardrums . But, on the other hand, the large power range you can control , the system will sound better at sufficiently high levels.

To date, more than thirty used digital audio formats , so you purchased the amplifier must function properly with most of them. Each amplifier works well with conventional stereo -CD, Dolby Digital surround sound and DTS from DVD and your TV will give a new sound with Dolby ProLogic. But , on this good news ends . It is best to purchase a system 7.1. In this case you will need an amplifier that can decode 7-channel formats DTS ES and Dolby Digital EX. For full quality sound purchase model with Dolby ProLogic II. If the sound for you is as important as the image , in this case it is better to get an amplifier DTS- treatment 96/24 . You can not immediately believe how fabulous sounds DVD in this format. The most ” advanced” model can decode and audio formats such as SACD / DVD-A.

Next time – is the question of the form of I / O on your amplifier . The rear panel of the amplifier with a rich variety of connectors and terminals looks pretty impressive. Virtually all models of amplifiers are equipped with all the major audio / video inputs and outputs for speakers. The presence of additional – depending on the specific tasks that you put your system.

If you need to use the unit as a video / audio , you must check it for enough video inputs. The highest quality analog video connection will provide component video . Most amplifiers on the market offer video conversion signal. That is, whatever video you either filed for his power , he will bring it to any desired TV socket .

Most AV- with a plurality of audio amplifiers , but does not have the same number of outputs . If you need to play back the recording on DVD-R, CD-R, MD- HDD- deck or audio recorder , you must first make sure that the amplifier has enough digital outputs. You will still need to complete a 5.1- or 7.1 -channel analog inputs to connect or SACD- DVD-A- Player . Also need to think very carefully what other features you want to use the amplifier in the future.

Variety of functions AV- amplifiers will surprise many , but what is most interesting about each of them is very useful. One of the most remarkable – it is ” auto-tuning .” It is also the most comfortable . By a microphone amplifier ” runs ” on a number of sounds , thus making the hard work .

Room equalization . This term refers to a method of fitting a sound amplifier to the acoustic properties of the room. In many areas even the most expensive and high-quality AV- amplifiers can sound terrible. Phenomena can occur buzzing bass , etc. Amplifier with such a component as Room EQ customizes the output so that the affected frequency muted. Virtually all models of this function is automated , but to achieve the perfect effect , it is better to be adjusted manually. However, while Room EQ is only available in professional systems , it is only beginning to emerge in a more affordable devices.

To speaker system not only worked in one room, amplifiers presents a parameter such as multi-zone connectors. There are also connectors system link. Different manufacturers they differ . These connectors allow the output data of other devices that are connected to the amplifier. However, these devices must be from the same manufacturer as the amplifier.

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