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3
Tighten all four of the mounting screws in the same
manner until the speaker is properly aligned and held
tight to the ceiling surface.
Painting the Speaker
A paint shield is included in each AC-CD speaker
package. Place the paint shield inside the frame to
protect the speaker. You can now safely paint the
speaker frame to match your wall surface if you desire.
When painting the grill caution should be taken to
ensure that paint does not clog or congest the
perforated openings in the grill. This would prevent
proper operation of the grill by restricting the airflow
from the individual drivers in the speaker.
Removing the AC Series Speaker
Should it ever become necessary to remove the AC
Series speaker from the ceiling, simply remove the
grill and turn the four mounting screws counter-
clockwise until you feel the clamps lock out of position
in their resting flange. The speaker should easily come
out of the wall for service or replacement.
Caution: Do not over tighten!
Recommended Speaker Wire Gauges
The resistance of the speaker wire in your installation
can cause your speakers to perform at less than their
optimum quality level. Excess resistance caused by
using an undersized speaker wire can result in loss of
detail and definition in the bass region of your audio
program, as well as loss of dynamic range. Over
extremely long wire runs you may even experience a
loss of high frequency content in the audio signal.
50’ or less - 16 Gauge 2-Cond. CL3 Rated
50’ - 150’ - 12 Gauge 2-Cond. CL3 Rated
150’ - 200’ - 10 Gauge 2-Cond. CL3 Rated
To prevent sonic degradation in your AC Series
speaker installation, total speaker wire resistance
should be kept below 0.5 ohms. The following table
lists recommended speaker wire gauge versus wire
run length.
Next make sure that the clamps are positioned inside the
frame of the speaker.
With the grill removed, place the speaker in the ceiling
opening. Make sure that the speaker wire is not hanging
against the speaker where it can vibrate and rattle as the
speaker reproduces your audio program.
Next, one at a time, turn each of the four screws that
operate the clamps counter clockwise a few turns until
you feel the clamp is loose from its resting position. Now
turn the screw clockwise until you feel the clamp contact
the ceiling surface.
1
2
3
4
Locate a small hook tool (available at most auto parts
stores or home improvement shops, resembling a
dentist’s pick- a bent paper clip or stiff wire will work
as well), hook the metal mesh of the grill near a
corner or edge and gently pull it towards you. Only
lift the grill 1/4" (6mm) at this location. Move the tool
1-2" (25-50mm) and repeat until the grill can be
removed without damaging it (Figure 5).
Grill Removal (if installed)
Figure 5
Correct
Incorrect