Owner manual

Page 3
Reference Manual
P.I.P.-RPA
1 Welcome
Thank you for purchasing the Crown
P.I.P.
®
-RPA accessory. PIP
™
mod-
ules are designed to install quickly
into the rear panel of many Crown
amplifiers. PIP stands for “Program-
mable Input Processor.” Their versa-
tile features expand the capabilities of
your amplifier and enable you to cus-
tomize it for your particular needs.
The P.I.P.-RPA adds the features of a
remote-controlled 4-input 2-output
mixer to the input of your amplifier.
Each of the four main audio inputs is
balanced and can accept signal lev-
els ranging from low-level micro-
phones to line-level devices. Phan-
tom power is available for micro-
phones. The P.I.P.-RPAT also has1:1
isolation transformers for each input.
Unbalanced “Audio Bus” inputs and
outputs, similar to “Aux Send” and
“Aux Return” on a typical mixer, are
provided. The Audio Bus inputs al-
low an almost unlimited number of
sources to be connected at each
amplifier input. The Audio Bus out-
puts allow the mixed signal of Chan-
nel 1 and 2 to be fed to other ampli-
fiers or components.
Mixing the input signals of the P.I.P.-
RPA is accomplished remotely using
a two-wire remote control to control
the VCA (voltage-controlled ampli-
fier) of each input. The remote control
can be a fixed resistor for a fixed
attenuation or a 10 K potentiometer
(pot) for variable attenuation. A 10
VDC source is conveniently provided
on the PIP for the remote. If no attenu-
ation is desired, the 10 V source must
be connected directly to the remote
control input. Up to 84 dB of attenua-
tion is available with each VCA. If
desired, more than one input can be
controlled by the same remote con-
trol.
A “voice-over” feature is provided so
Inputs A and C can have priority over
Inputs B and D. When activated, the
voice-over circuitry causes the low-
priority inputs to “duck” by a preset
attenuated level. The input priority
(and signal routing) is programmed
with an 8-segment DIP switch on the
top circuit board of the PIP
. A compan-
ion “Tie” feature, controlled remotely,
enables you to tie one channel to the
other. Using it, the audio from one or
more inputs can be directed to both
outputs and their priorities linked.
Feature Summary
❏ Remote-controlled mixing of 4
balanced mic/line inputs with up to
84 dB of attenuation.
❏ Adjustable input sensitivity.
❏ Phantom power available for mics.
❏ Audio Bus inputs and outputs.
❏ 10 V provided for remote-controls.
❏ Voice-over capability with adjust-
able sensitivity and duck level.
❏ Ch. 1 and 2 can be tied together.
❏ 1:1 isolation transformers (P.I.P.-
RPAT).