How are the 7.1 or 9.1 channel systems constructed in a home theater?
Output port of the 2.7.1 channel contains: FR- right in front of the main speakers FL- left in front of the main speakers CEN- SL- speakers left around SR- right around the RL- left rear surround speakers RR- right rear surround speakers sub-woofer subwoofer is a 7.1 system setup uses 4 surround speakers, which is 5.1 more than the left and right rear surround two channel. That's why the 7.1 surround effect is more shocking than the 5.1 output surround sound.
The left in the 5.1 channel system (L), (C) and right (R), left posterior (LS) (RS), right after the sound output of five directions, make people feel like in the real music hall. The five channels are independent of each other, and the ".1" channel is a specially designed subwoofer channel, which produces a subwoofer with a response range of 20 to 120Hz. Just because there are trumpets around and around, it creates a sense of reality surrounded by music.
For HD players, analog 7.1 and 5.1 channel output is an important performance, but what are the specific differences? About analog 7.1 and 5.1 channel output, often someone will ask, 5.1 less than 7.1 which two sound channel? The answer is to wrap around the left and right track RR/RL, because 7.1 has two levels, and the 5.1 is surrounded by one group. 1 on the 5.1 channel output in 5.1 channel is the use of 5 horns and 1 subwoofer to achieve a music player personally on the scene, it is developed by Dolby Inc, so called "Dolby 5.1 channel".