Figure 7.
Home Theater Application.
Critical
Listening
Position
FX
LCR
FX
FX
LCR
FX
LCR
Figure 6.
Stereo Sound Application.
3-6'
8'
8
'
3-6
'
10
9
DIRECTED SOUNDFIELD
™
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NILES AUDIO CORPORATION
– 1-800-BUY-HIFI – 1-760-710-0992
SWITCH ADJUSTMENTS
TWEETER SWITCH
(DS7MP, DS7PR, DS7HD, DS8PR, DS8HD, DS7SI)
The three-position tweeter switch allows you to adjust the high frequency output
of the loudspeaker to compensate for room acoustics. The center position does
not affect the tweeters output. Moving the switch to the
–
position reduces the
tweeter output by 3 dB to compensate for bright rooms (tile or wood floors, spare
furnishing, tall ceilings). Moving the switch to the
+
position increases the tweeter
output by 3 dB to compensate for absorptive rooms (carpeting, lots of drapery,
plush furniture, etc.).
DIALOG COMPENSATION SWITCH
(DS7MP, DS7PR, DS7HD, DS8PR, DS8HD, DS7SI)
This switch provides additional definition at critical midrange frequencies where
the human voice is reproduced. This switch is generally used only for home
theater center speaker applications. Engage the switch if you wish to enhance
the dialog.
DIFFUSE / DIRECT SWITCH
(DS7FX, DS8FX)
Use the Diffuse setting for movies and general music listening since most films
are mixed using non-localized surround effects and music is usually recorded in a
favorable acoustic environment. Use the Direct setting for discrete multi-channel
recordings that equally emphasize front and surround sounds. For 7.1-channel
surround sound systems, use the Diffuse setting on the side effects loudspeakers
and the Direct setting for the rear effects loudspeakers.
PAINTING THE GRILLES
The DS loudspeaker grilles can be painted without priming, but the fabric scrim
must first be removed. The installation template has die cut standoffs that can be
used to position the grille off the ground while painting. Use several light coats
sprayed from different sides and angles to cover all surfaces and not fill in any
holes. If you do fill some holes, use compressed air to open them before the paint
dries. It may be helpful to dilute the paint.
INSTALLING THE GRILLES
The Niles MicroThin™ speaker grille installs magnetically over the speaker.
Carefully center the grill over the speaker and let the magnets do their work,
verifying that the grill sets flush against the ceiling at all edges.
(CONTINUED ON NEXT PAGE)
APPLICATIONS
Niles DS Loudspeakers are designed to be installed in any standard ceiling.
When choosing a location, thought should be given to the sound coverage of the
loudspeaker, and ease of running the speaker wire.
STEREO SOUND APPLICATIONS
The best stereo effect will be achieved if both
loudspeakers are at an equal distance from the
listening area. Ideally all loudspeakers should
be on the same horizontal plane (
Figure 6
). Avoid
installing loudspeakers near corners to prevent
a “boomy” or diffracted sound. Also note that
the lower the ceiling, the closer the loudspeaker
should be placed to the listener.
HOME THEATER APPLICATIONS
Left/Center/Right
– Position the center
channel loudspeaker directly over the
television, with the left and right speakers
equidistant from the center. The separation
between the left and right should not be
more than the distance to the primary
seating area (
Figure 7
).
Side Surround Effects
– Position surround
effects loudspeakers to the sides of the
listening area with the tweeters in-line with
the listener. The tweeters should point to
the front and rear of the room (
Figure 7
).
Rear Surround Effects
– Position surround
effects loudspeakers behind the listening
area, to the inside of the front left and right
speakers. The tweeters should point to the
sides of the room (
Figure 7
).
