Figure 1 shows how this would work for a square area of 28 feet by 20 feet and using stereo signals. Using our spacing rules as shown in Table 1, leads to the need for four speakers. The loudspeaker coverage pattern is shown in the diagram.
4.4 Feet | 9.6 Feet | 9.6 Feet | 4.4 Feet |
(1.3 mm) | (2.9 mm) | (2.9 mm) | (1.3 mm) |
20 Feet (6.1 mm) | D=16 Feet (4.9 mm) |
Figure 2 Stereo Coverage 6 speakers
Figure 2 shows the same area as Figure 1, however the number of speakers has increased by 2. You can see a greater area of stereo coverage and this would also have a more even sound level across the listening area. This illustrates the fact that not using the maximum spacing allowed leads to improved sound quality.
Achieving high quality stereo coverage in a large area is costly. You need to use more speakers and more amplifier power or separate amplifiers. If a large area needs to be covered, consider using a summed stereo or mono signal for each speaker. If summing the stereo inputs into the amplifier or setting the amplifier to play in mono is acceptable, the loudspeakers can be spaced 8 feet from the sides and 16 feet from each other. The row spacing between speakers should be less than 30 feet. This will increase the area your loudspeakers will cover.
| Sources | Spacing | Spacing Between | Spacing |
|
|
| from Sides | Speakers within a row | Between Rows |
|
| Stereo | 8 ft | 12 ft | 20 ft |
|
|
| 2.4m | 3.7m | 6.1m |
|
| Mono | 8 ft | 16 ft | 30 ft |
|
|
| 2.4m | 4.9m | 9.1m |
|
Note: These are maximun recomended distances, sound quality is improved if you use smaller spacings.
Table 1 Spacing Rules
INSTALLATION CONSIDERATIONS
6
