A home theater system consists of a DVD player, AV receiver, audio speakers and a large screen TV. Let's look at the features of each component and the principles of their layout in order to determine how to choose a home theater that will not disappoint you.
If not a single system is purchased, the home theater is made up of separate elements. It is better to start the selection of technology with the TV.
Home Theater System Components
Television
To collect home theaters, TV receivers with a diagonal of 32 inches are traditionally bought, video projectors or plasma panels with large screens can also be used. The latter can be hung on the walls, the image is brighter and clearer, and the screen is resistant to light exposure.
Video projector
Video projectors reproduce images of any size, for home use, video projectors with a format of about 200 x 150 cm are purchased, and high quality video playback will turn the system into a real home theater.
DVD player
This unit plays back sound and video from DVD / CD discs, plays music tracks, and displays images from digital cameras on the TV screen. In home theater operation, the player transmits multi-channel digital audio to an AV receiver for decoding.
AV receiver
The AV receiver converts digital audio to analog audio, amplifies and transmits the signal to the speakers. During the operation of the player, the sound enters the receiver, from where it is distributed to the channels of the speaker system and the subwoofer channel of low frequency. The most commonly used receiver format is 5.1, which distributes the signal to 2 front, 2 rear, 1 center and 1 subwoofer channels.
The power parameters of the front and rear channels must be synchronized, and the quality of the channels functioning depends on the magnitude of the amplification power. For a room with an area of 20 square meters, it is recommended to select a 100W per channel AV receiver.
Home theater acoustics
In home theaters, the optimal number of speakers, depending on the location, dividing into center, front and rear, provides the best sound quality when watching a movie. All dialogues and audio effects are sounded by the center channel speaker system, and in cheap receivers the signal going through the center channel is distributed between the front right and left speakers. The center speaker is installed close to the screen.
All speakers must be magnetically protected against the effects of the magnetic field of the speakers located near the TV receiver on the quality of the broadcast image.
Front speakers
The front speakers reproduce music and sound effects. If the DK acoustics lacks a subwoofer, then the entire load of bass reproduction with a deterioration in their sound quality is distributed between the two front speakers.
Front speakers are divided into two-way and three-way. The large speaker of the 2-way speaker reproduces low frequency sounds, while the small speaker reproduces mid and high frequency sounds. Three-way speakers reproduce high, low and mid frequencies. It is recommended to purchase a subwoofer to increase the emotional effect of the film perception and enhance the special effects of the film, despite the high-quality sound produced by the three-way speakers.
Front speakers for home theater are placed on the left and right sides of the TV receiver at a distance of no more than 1.5 meters from the device and 1-1.5 meters above the floor. Rear speakers with directional and dipole acoustics create a surround sound effect. For the formation of non-directional sound, the speakers are placed by the speakers towards the wall or ceiling.
Power
During the selection of the appropriate power of the acoustics system, it is necessary to ensure that the power of the receiver does not exceed in comparison with this parameter of the speakers. In a room less than 10-30 square meters, it is recommended to buy a 50-watt system, in medium-sized rooms - a 100-watt system, and in large halls - 150-260 watt acoustics.
If you need a home theater with additional features, you can buy a recreation center with low-power acoustics, but with a built-in FM tuner and karaoke.
Home theater price
The manufacturer and many technical characteristics affect the price parameter of a DK without a TV. Cheap models cost from 50 thousand rubles, average ones are sold for 70-90 thousand rubles. Expensive and powerful home theater models with additional functions, high build quality and components cost from 100,000 rubles.
Now you know how to choose a home theater system without the fuss. Happy viewing!
