What is The Meaning Of 5.1 Channel System?
In all 5.1 channel systems, ‘5’ represent the number of speakers and ‘.1’ represent the sixth channel also called low-frequency effect(LFE) channel. These 5 speakers include two front speakers, two surround speakers, and one front center speaker. As a low-frequency channel, a subwoofer is added to the system.
Placement of A 5.1 Channel Home Theater Speaker System
Let’s start with placing the center speaker. Place the center speaker (C.S.) in front of your seating location, under the video monitor(TV).
After placing the center speaker, place the front right and front left speakers making 30 degrees from the line joining center speaker (C.S.) and seating location.
If placing the front speaker at 30° is not possible, practically, then you can change the angles in the range from 22° to 30°. You can place the front speakers anywhere in the between 22° and 30°.
Now place the surround speakers (S.S.) 110° from the straight line joining the center speaker and the seating location. You can adjust the surround speakers up to 90° if 110° location is not free.
Low-frequency effects are omnidirectional (Convey the power in all direction equally), hence you can place the subwoofer where ever you want to. However, we suggest you place the omnidirectional low-frequency channel in the front corner for getting maximum bass. If you will place the subwoofer in the corner, the low-frequency signal will reflect from the walls and will enhance the bass.
Some Extra Tips to Make The Sound More Real
- Place the front and surround speakers at a level approximately equal to the half of center of video display level.
- Face all the speaker toward the seating location.
- Whatever is your room shape, place the speakers considering a rectangular portion of the room.
- Left and right front speakers should have the same distance from seating location.
- Left and right surround speakers should have the same distance from seating location.
- Always place the subwoofer at very low height, if possible, place it on the ground.
Using Room Acoustic Optimizer For Installing 5.1 Channel System
You can also use a room acoustic optimizer to install your 5.1 channel home theater system. Yamaha Parametric Room Acoustic Optimizer (YPAO) is generally included in all Yamaha home theater systems in a box. YPAO consist of a microphone which can be connected to the Yamaha AV receivers to calibrate the acoustics. Let’s see how to use a YPAO for getting the best out of your home theater.
First of all, connect the YPAO microphone to the YPAO MIC jack on the front panel of the AV receiver. Now place the YPAO on a tripod at the seating location, keep the level of YPAO equal to the ear level. Do not place the YPAO on a plane surface like table or couch for optimization. Press enter to start the auto setup. This may take 3-minutes or more to optimize the speaker settings, automatically. When the auto setup finishes, save the settings and remove the YPAO from the receiver and enjoy the great the sound.
Don’t do following things during setup:-
- Don’t make noise in the room where you are setting up the home theater system.
- Do not connect the headphones.
- Don’t stand between the speakers and the YPAO, move to the corner or leave the room.
- Do not place the YPAO on a plane surface like table or couch for optimization.