Commercial Design Series - CP6
Installation Guide
Page 3
Once the loudspeaker is mounted correctly in
the ceiling, set the tap switch (inset above) to
the appropriate tap setting before any audio is
passed through the loudspeaker.
Do not change the setting on the
tap switch while the loudspeaker
is in use. It’s best to turn off the
power amplifier before adjusting
this switch.
If necessary, remove the loudspeaker grille to
gain access to the tap switch, which is located on
the front baffle adjacent to the loudspeaker cone
(red arrows and inset in Figure 9, yellow arrow
in Figure 10).
You can use a standard #2 or #3 Phillips or a
medium slot-blade screwdriver (not the one
provided with the loudspeaker kit), or just press
9
Loudspeaker Tap Setting
with your thumb firmly, and twist to adjust
the power control dial on the front face of the
loudspeaker baffle. As shown in Figure 9, you
can make any of five different settings, although
the dial has dual calibrations so at first glance
it appears to have ten settings. The 8-ohm
position is the same on both sides and is for a
low impedance connection. On the lower-left side
of the power tap control shown in the close-up
on Figure 8 are the power values for 100-volt
connections, and on the upper right side are the
power values for 70-volt connections.
Note.
The letters NC mean “no-connect” but they
do not actually break a connection. DO NOT USE
this setting if you’re using a 100-volt distribution
scheme as the loudspeaker may draw excessive
power; it corresponds to the highest power that
can be drawn with a 70-volt source.
This control makes it very easy and fast to
balance an installation since there is no need
to open the loudspeakers and move wires to
different terminals. Just be sure there is no
applied signal when you are actually changing the
tap switch setting.
10
Note
: It is best to begin with the loudspeaker
lower than the anticipated final height, and lift it
into position. It can be lowered later by using the
Gripple Setting Key, as shown in Figure 7, but best
practice is to set the height primarily by raising
the unit.
7
If you want extra weatherproofing, apply a
small bead of silicon sealant around the ridge
on the loudspeaker body where the top will
join it (Figure 8A). Slide the loudspeaker cover
into position so its four recessed holes align
with the four threaded fittings on the top of the
loudspeaker (Figure 8B). Then insert the four
provided machine screws and fasten the cover.
Finally, press the split cover plug into place
(Figure 8C), also using some silicon sealant as
may be necessary.
If you have purchased the optional PST-14
Decorative Plastic Tubing, this is an appropriate
time to install it.
8
C
A
B
To lower a loudspeaker which is already clamped
by the Gripple, Refer to Figure 7.
A
. Insert the setting key into the small hole in the
bottom of the Gripple, which forces the internal
locking wedges open, and then,
B
. Slide the cables to lower the loudspeaker.
Use this method first to create some extra slack
in the safety cable, then support the loudspeaker
with your hand as you play out the main support
cable, lowering the loudspeaker to the desired
height. Finally remove the setting key to lock the
loudspeaker in place, and re-tension the safety
cable by pulling the loose end until it is snug.
