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Speaker Placement
The low frequency capability of the CSUB allows great flexibility in its placement. While
full-range speakers will typically be installed throughout the ceiling in an evenly spread
pattern, the CSUB can be placed wherever it is most convenient. This usually means
where the subwoofers best meet the needs of the overall sound system, or may some-
times mean where they best fit into the ceiling. This flexibility is useful in irregularly-
shaped rooms or when the depth of the area behind the ceiling surface varies.
An important performance parameter to keep in mind is that the location of the sub-
woofer will affect its output sound pressure level (SPL) within a room. Locating the CSUB
close to a wall will increase its output by approximately 3 dB over locating it toward the
center of the ceiling area. The 3 dB increase will effectively double the amount of output
power coming from the subwoofer. Locating the CSUB in the corner of a room, adjacent
to 2 perpendicular wall surfaces, will increase its output by 6 dB. This 6 dB increase effec-
tively quadruples the output of the subwoofer compared with locating it closer to the
center of the room. The tradeoff for this extra output is a less uniform overall sound
level, especially in large rooms.
CSUB
CSUB
CSUB
Near Wall: + 3 dB Output
Near Corner: + 6 dB Output
Center of Ceiling: Optimum Bass Distribution
Most Uniform Sound Level
Three possible locations for a CSUB Subwoofer
within a larger sound system:
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Note:The CSUB may be placed as close as 5" from a wall, provided care is taken to
ensure that mounting clamps are properly extended (see Installation section). If mount-
ing clamps cannot be properly extended, another location must be found.