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glow in the dark and are easy to see in a poorly lit attic or basement crawl
space. You can use a coat hanger or other stiff wire to locate from above
or below the pilot or exploratory hole you drilled from the living space. It
will help if you spray paint the end of the wire a bright color.
Do not drill any hole larger than 1 1/4" in diameter. It is advisable that
you drill multiple smaller holes rather than one large hole. Also, do not
drill the holes too close together or too close to the edge of the top plate.
Keep the holes in the middle of the 3 1/2" wide top plate. Keep multiple
holes at least as far from one another as the diameter of the holes
themselves and away from the edges of the top plate.
Running the wire
When all the holes are cut and drilled for the head-out J-box, speakers,
volume controls and wire paths, you may run the wire. Use 4-conductor
wire from the head-out J-box to each volume control and two 2-conductor
wires from the volume controls, one to each speaker. To fish the wires
through the walls, you can use an electrician's fish tape or a stiff wire of
sufficient length.
Mounting Your Speakers
Once the mounting holes are present, either cut for you by the drywall
installers or cut by you, mounting the speakers is very simple.
The round ceiling speakers and the SE-791D use cam nuts or "dog ears"
for the mounting system. Position the dog ears so that they are flipped
inward (counter-clockwise) toward the center of the speaker.
The rest of our in-walls use the clamp-ring mounting system. If they are
not already attached, attach the clamp-ring to the speaker frame by
placing the ring behind the plastic frame, smooth side up, so that the
threaded holes in the ring match up with holes in the frame. Now insert
the screws through the plastic frame and screw them into the metal ring,
but just get them started.
Connect the speaker wires observing polarity (connecting the positive
lead to the positive terminal and the negative to the negative).
For ceiling mounted speakers where insulation is present, it is a good idea
to shield the back of the speaker from the tiny abrasive insulation fibers,
which can find their way into the moving parts of speakers and cause
problems. A very good way of doing this is to use 13 – 15 gallon plastic
trash bags. Push the bag up into the hole and spread it out flat on the
topside of the drywall between the drywall and the insulation (bags laid
flat measure about 24" x 30").
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