The "heart" of your theater is the audio configuration. Most systems are categorized by numbers (e.g., 5.1 or 7.1.2), where the first digit is the number of speakers, the second is the subwoofer, and the third refers to upward-firing "height" speakers for 3D sound.
: The classic setup including a center channel (for dialogue), front left/right speakers, two rear surrounds, and a subwoofer. home theatre system buying guide
: If you want a screen larger than 85 inches, a 4K laser projector provides the most authentic "theater" scale. 3. The Central Hub: The AV Receiver The "heart" of your theater is the audio configuration