7.1-channel THX home theater speaker placement calculator (previously shared on the Internet, there are some errors, it has been corrected here).
Tool instructions: Just enter the length x. width y. height z (xyz is the length, width and height of the room respectively) Please enter the size of your room.
Everyone knows that in a multi-channel home theater system, the placement of the speakers plays a crucial role in determining the playback effect of the film. These effects will have a critical decision on the clarity of the sound, the location of the sound source and the consistency of the audiovisual. . Before we also introduced the knowledge of multi-channel home theater speaker placement, see: "Multi-channel home theater speaker placement analysis." Is the 7.1-channel placement complicated? In fact, it is very simple. The biggest difference between the 7.1-channel speaker placement is the position of the four surround speakers. Here I provide a calculation formula to calculate the position of these four surround speakers. Please note that this is the best space for you. The position is based on the position, not the position you are sitting in. You should first place the speaker in these positions and then choose where you are sitting.
L speaker placement
Distance from the Y axis = length of the X axis x 0.18
Distance to the X axis = Y axis length x 0.15
C speaker placement
Distance from the Y axis = (X-axis length x 0.18)/2
Distance to the X axis = Y axis/2
R speaker placement
Distance from the Y axis = length of the X axis x 0.18
Distance to the X axis = Y axis - (Y axis length x 0.15)
SL speaker placement
Distance from the Y axis = length of the X axis x 0.535
Distance to the ground = Z axis x 0.75
Note: This position must use two-way or one-way sound surround speakers, three-way sound speakers are not applicable.
SR speaker placement
Distance from the Y axis = length of the X axis x 0.535
Distance to the ground = Z axis x 0.75
Note: This position must use two-way or one-way sound surround speakers, three-way sound speakers are not applicable.
SB speaker placement
The distance between the two SB horns is 30cm and is based on the Y-axis/2
Distance to the ground = Z axis x 0.75
Note: This position must use two-way or one-way sound surround speakers, three-way sound speakers are not applicable.
LFE subwoofer placement
Distance between subwoofer and X-axis (left or right wall) = Y-axis length x 0.039
Distance from the Y axis = length of the X axis x 0.738
Emperor listening position
Distance from the Y axis = length of the X axis x 0.535
Distance from the X axis = Y axis length / 2
The above is the 7.1-channel placement calculation. This result can provide an acoustic-aligned position reference in different spatial directions. After the horn is placed in position, it can be adjusted according to the actual sense of hearing, because our space is impossible. There is no furniture, and sometimes because of the placement of furniture, it may be necessary to sacrifice the best position of the horn.
Speaker placement is only a foundation in the multi-channel field. It is also a simple matter for everyone in DIY. Once the position is correct, the whole system can at least exert a certain strength. The speaker position and tone are not absolute. The relationship, but has a great influence on the sound field, positioning, and density of the sound. The tone style is already set when you select the equipment. If you can make some efforts on the space acoustic treatment under a good position, you can really enjoy the power like a cinema.
Tool download:
 | 7.1 channel THX home theater speaker placement calculator |
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