screwdriver, screw in the 4 mounting screws on the face of
the speaker until it sits snugly on the ceiling.
If the grille of the speaker vibrates, you may apply a small
amount of the black acoustic damping material (packed with
the speaker in a small plastic bag) between the grille and the
cabinet. The NuTone logo on the grille can be swiveled to
any position desired. You may also apply a small amount of
the black acoustic damping material to the logo from behind
the grille if it is loose.
You can now place the grille on the face of the speaker and
gently push it in. In case you need to remove the speaker,
simply remove the grille. Using the screwdriver, unscrew the
4 screws as before until the speaker comes loose from its
seating on the ceiling.
As mentioned above, the ceiling speakers are equipped with
a unique tweeter which can be rotated. Hence, you may
wish to turn/swivel the tweeter so that it points to the main
listening area. You may wish to adjust the position at various
angles while listening to high notes in music to determine the
position that gives the best result. Once adjusted in this way
for a particular installation situation, you do not need to
adjust it again.
OPERATIONAL CHECK
After making all connections, check for proper operation.
Switch on the system. Play music and slowly increase the
volume. You should hear sound from the speakers. If no
sound is heard from any or all speakers, switch off the
system immediately and check for open or loose
connections, wrong polarity or shorts.
VOLUME CONTROL
If desired, the volume from the ceiling speaker can be
controlled by using the 150 Watt NuTone autoformer stereo
volume control SVC-101 for MS-625 or SVC-102 for
MS-626. Refer to the stereo volume control instruction sheet
for further details.
CAUTION: The ceiling speakers MS-625 and MS-626 are
not designed to be used with NuTone Radio Intercom
Systems.
HOME THEATER SYSTEM
For best stereo/surround sound reproduction you must use all
speakers of the same brand in the system. The new NuTone
SENSONIC™ SURROUND SOUND 8 Ohm speakers are all
acoustically matched. Therefore, they can all be used in
combination to create sonically-balanced sound as it moves
across the screen in a home theater surround sound system.
For the most accurate and exciting reproduction of bass
frequencies, a separate sub-woofer should be used.
A basic surround sound system consists of a pair of front
channel speakers, a pair of rear channel speakers and a
center channel speaker. You can use the in-wall speakers
MS-825, MS-828, MS-838K, or even ceiling speakers MS-625,
MS-626 as front and rear channel speakers. You can also use
the surface mount speaker MS-525 as a rear channel speaker.
The front channel speakers should be mounted at
approximately ear level from a seated audience at the front.
Rear channel speakers should be placed on the side walls
about
1
⁄
2
to
2
⁄
3
of the distance from the viewing screen or the
front of the room to the rear of the room. The bottom of the
speaker cabinet should be at least 2 feet above the ear level
of the seated audience. Rear channel speakers can also be
placed at the rear or back wall at about 2 feet higher than the
ear level of the seated audience as before. For best surround
effect, the distance to the rear speakers from the audience
should be no more than 6 feet.
One important aspect of surround mode is the speaker delay.
CEILING SPEAKER
Woofer mounting
screws
(Do not remove)
FIGURE 1
Swivel dome tweeter
(Press around the
edge to swivel)
Mounting screws
for installation
Mounting tabs
(Ensure the tabs face
inward before installing)
Grille
Enclosure
