Revel W990 - Manual (Page 4)

4 In-Wall Architectural Loudspeaker
Instruction Manual
The high-order crossover networks employed in all Revel in-wall
speakers provide very smooth response over a wide listening area,
allowing you to use any model in any application with excellent results.
Note: The W990 and W970 can be used in either horizontal or vertical
orientation.
IMPORTANT: The location of the woofer within the stud bay relative
to the entire length of the bay is critical because of standing waves
created within the cavity.
• Before installation, determine the height of the stud bay cavity.
(There might be a fire block that makes it shorter than the entire
height from the floor to the ceiling). Avoid placing the speaker’s
woofer at 1/4 or 1/2 the distance from either end, or at the top or
bottom of the cavity, as this would cause a serious cancellation of
low-frequency output.
• The ideal location for the woofer (whether the speaker is mounted
upright or inverted) is at the one-third distance point as shown in
examples A and B. If that is not feasible, then two-fifths, or one-fifth
of the height are the next best alternatives. The least desirable
position to place the woofer is at one-half or one-fourth of the height.
• If a fire block completely divides the bay, the measurement would be
from the fire block – not the floor or ceiling – as shown in example C.
1/3 of
Cavity
Height
1/3 of
Cavity
Height
1/3 of
Cavity Height
(Measured From
Fire Block)
Fire Block
C
B A
loudSpeAkeR plAcemeNt foR tWo-cHANNel
SteReo
Place the left and right loudspeakers the same distance from the
primary listening area (or as close to the same distance as possible). The
distance from each speaker to its nearest side wall should also be the
as close to the same distance as possible.
Equal
Distance
Equal
Distance
Left
Speaker
Right
Speaker
Ideally, the distance between the left and right loudspeakers should be
slightly less than their distance from the primary listening area.
loudSpeAkeR plAcemeNt foR Home tHeAteR
• The front left and front right loudspeakers should be located on
either side of the video display, with their tweeters as close to ear
level as possible.
As close to screen
as practical
2' (0.6m)
or less
• The front left and front right loudspeakers should be relatively close
to the sides of the video display. For example, front left and front
right loudspeakers used with a 50-in (1.3m) video display should
generally not be more than 80 in (2m) apart.
• The center loudspeaker should be aligned with the center of the
video display. Its tweeter should be no more than 2 ft (0.6m) above
or below the tweeters of the front left and front right speakers.