Once you have decided on the room that will host your home theater, you will determine the location of each element of the system. The main components are the CD / DVD / VCD, the display unit (TV, Projector), the speakers and AV receiver. If you do not have AV receivers, you may be a box [HTIB]. If you want to understand what are the elements of a home theater, see the descriptions below. Dimensions of the room. First, make sure you know the dimensions of the room before you buy and have your items. A rectangular room with a minimum of windows is generally a good idea to install your home theater. Select components based on the size of the room (This will be explained in more detail in the next section). Be sure to consider acoustics and lighting. • Acoustics. It is essential to soundproof the room as possible. Put heavy curtains on the windows and hang pictures on the walls. If you have a big budget, you can soundproof the room professionally. In either case, cover your floor with carpet as wooden floors or tiles reduce sound quality. • Lighting. You know how the lighting in a theater. Try to follow the same style in your home theater. You will not need a completely dark room but you can use a very soft light that will give a special ambiance to your room. Be careful also not to place your TV screen or in front of a light source (doors, windows . . . ) because you may have highlights during your projections. • TV or movie screen? If you intend to watch TV via cable, satellite and some DVDs, the TV is a better option because the same images from a projector lose quality. In addition, video projectors generally do not like RF connector for televisions. Your cable or satellite receiver must have s-video, DVI or son who connect to the projector. Projectors and screens are better for movie fans who prefer to watch DVDs. Cable TV / satellite whose content is high definition [HD] also walk very well with a projector. The major drawback is that the projector lamp life is limited and it is quite expensive to replace. A good alternative is to use a widescreen TV to rear projection. Screen size. How to choose the right size for your TV or screen with respect to the size of the room? There is one simple rule: follow the normal distance at which you watch a TV screen. This distance is at least twice the width of your screen. . Seats. Arrange seats in a semicircle, leaving a minimum distance between each of them. You can reposition the seats or other elements to make the experience more enjoyable. There are seats in cloth or leather like those of a film but specially designed for the home. . Professional help. If you are installing a movie theater in your home, it is best projection tv to get professional help. A technician will help you buy the different elements, to organize the room, set up the sound and make all necessary connections. . . .