Crown PIP-RPA Reference Manual page 9

P.I.P.-RPA
cal to the duck level controls. Figure
3.7 shows how the control can in-
crease the relative sensitivity.
When the control is set to position 1
(0 dB) it is so insensitive the voice-
over circuit will almost never trigger.
When it is set to position 12, the
sensitivity is increased 26 dB.
Fig. 3.7 Voice-Over
Sensitivity Settings
Setting the voice-over sensitivity is
simply a matter of gradually turning
up the sensitivity control until it is set
too high, then backing it down a little
to an optimum setting. This will re-
quire you to install and remove the
P.I.P.-RPA several times while the
sensitivity setting is refined. If you
prefer not to repeatedly install and
remove the PIP from the amplifier
you can purchase our P.I.P.-EXT ac-
cessory, an extender card which will
allow you to connect the PIP outside
the amplifier so you can make adjust-
ments to it during system operation.
The exact procedure for setting the
voice-over sensitivity will vary de-
Reference Manual
pending upon your particular appli-
cation. The steps we provide are for
a common scenario which shows the
principles involved. If you need more
information please contact our Tech-
nical Support Group at 800/342-6939,
or contact your local representative.
For the sake of simplicity our ex-
ample will describe how to set just
one of the two voice-over sensitivity
controls. We will also assume that
you do not have a P.I.P.-EXT. The
procedure involves turning up the
voice-over sensitivity until it is trig-
gered by the ambient noise level
then backing off a little so that only an
audio signal triggers it.
Procedure
Example: Input B will be fed a line-
level background music signal and
will be assigned a priority of 2 by the
routing/priority switch. Input A will be
fed a mic-level signal from a paging
mic which requires phantom power.
The paging mic will automatically over-
ride the background music whenever
it is used. The routing/priority switch
will be set to setting "b" to accomplish
this (refer to Figure 3.4).
1. Set the input mode switch (Figure
3.8) to the appropriate setting for
each input. Input A should be set to
"PHAN" for the phantom powered
microphone and Input B should be
set to "LINE" for the line-level feed.
2. Set the input level controls of
Inputs A and B for the required
system gain (Figure 3.8).
3. Refer to Section 3.5 and connect
the audio
appropriate inputs (A and B).
Audio signals will be needed next
to adjust the voice-over circuit of
cables to the
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