scalloped side of the connector plug into the smooth side of the
socket. See
Figure 6
on
page 7
.
5. Set the Impedance Magnification Switch (See
Figure 1
) as
determined by the IM charts (
Figures 4
and
5
on
page 7
).
6. Plug the connectors into the volume control as shown in
Figure 6
on
page 7
. The inputs of the IM volume control are
the connector pins labeled AMPLIFIER. The outputs are the
connector pins labeled SPEAKERS.
NOTE:
If you reverse these connections, the volume control
won’t function properly.
7. Secure the volume control to the junction box. Insert the
1-1/4" device screws into the oblong screw holes on the top
and bottom of the volume control. The oblong shape of the
screw holes helps you place the volume control in a vertical
position. Align the screws with the threaded holes
in the junction box. Tighten the screws using a Phillips
screwdriver. DO NOT OVERTIGHTEN. If necessary, loosen
these screws several turns so the volume control fits flush
with the faceplate.
8. Use the shorter plate screws to fasten the Decora faceplate
to the volume control.
9. Align all the screws in the same direction for a clean,
finished look.
OPERATION
1. Make sure the amplifier or receiver
power is OFF and set the volume to
minimum.
2. Set the volume on the volume control
to maximum.
3. If you are using a Niles speaker-
selection system, locate the ON/OFF
button that corresponds to the speak-
er pair you wish to play. Set it to the ON position. Make sure
the defeatable protection circuit is not enabled. See
Using
Speaker Selectors with IM Volume Controls,
on
page 3
.
4. Turn ON the amplifier or receiver and select a source, such
as the tuner or CD player.
5. Slowly turn up the amplifier or receiver volume and set it to
a comfortable –
not maximum
– listening level. Don’t over-
drive or "clip" your amplifier. If the sound becomes muddy or
distorted, you have reached the limit of your amplifier’s vol-
ume capability. Reduce the volume at once to avoid damag-
ing your speakers.
6. Use the volume control to adjust the volume of the speakers
to the desired listening level. If all the speaker pairs in your
system are equipped with Niles volume controls, you can set
the amplifier or receiver volume at one position and use the
Niles controls exclusively.
6
H
I G H
- P
O W E R
S
L I D I N G
V
O L U M E
C
O N T R O L
Figure 3
Loosening the Screws
for a Flush Fit
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