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Studio Reference
II
II
I
&
IIII
IIII
II
Professional Studio Amplifiers
8 Accessories
8.1
P.I.P.
Modules
One advantage of
Studio Reference
amplifiers is the
ability to customize them using
P.I.P.
(Programmable In-
put Processor) modules. Each amplifier is equipped with
an edge card connector inside the back panel
P.I.P.
compartment. The modules install easily:
compressors activate when a signal will clip the input,
an
IOC
error occurs, or the output exceeds the selected
threshold. The subsonic filters have corner frequencies
of 24, 28, 32 and 36 Hz.
FTE
Programmable
Input Processor (P.I.P.)
CH-2 INPUT CH-1 INPUT
+– +–
P.I.P.-FTE includes all P.I.P.-FXT features, and adds
12 dB/octave RFI filters, variable 18 dB/octave high-pass
filters, and 6 dB/octave 3 kHz shelving networks for “con-
stant-directivity” horn equalization. Screw terminal plugs
are provided for input.
IQ-P.I.P.-AP integrates the amplifier into Crown’s pat-
ented
IQ System
.
®
The
IQ System
provides centralized
computer control of 1 to 2,000 amplifiers. Each ampli-
fier channel can be monitored and controlled from an
inexpensive personal computer. Any combination of mic-
and line-level signals can also be mixed and routed with
optional
MPX-6
,
™
SMX-6
™
and
AMB-5
™
mixer/multiplex-
ers, and the MRX series matrixers.
IQ-P.I.P.-AP
Smart Amp
™
offers the monitoring and
control features of the IQ-P.I.P.-AP
plus the ability to
function as a stand-alone unit as part of the
IQ
System’s distributed intelligence
.
™
Features include a
smooth output limiter for transparent loudspeaker pro-
tection, power supply gates for energy savings,
ODEP
conservation which protects the output devices with
precision input signal control, interrupt-driven report-
ing that lets you define error conditions, and config-
urable short detection.
CLP
Programmable
Input Processor (P.I.P.)
3
12
GND
INPUT INPUT
CH-2 CH-1
PUSHPUSH
P.I.P.-CLP is designed to detect and prevent overload.
Its compressor is driven by the amplifier’s built-in
IOC
error detection circuitry. Unlike typical signal-driven com-
WARNING: Disconnect power to the amplifier when in-
stalling or removing a
P.I.P.
module.
Here are some of the available
P.I.P.
modules:
AMC
Programmable
Input Processor (P.I.P.)
OUTPUT INPUT
3
12
GND
P.I.P.-AMCb unites many features of the P.I.P.-XOV and
P.I.P.-CLP. It offers a variable 4th-order Linkwitz-Riley
crossover and an
IOC
-driven, variable threshold com-
pressor. In addition, it provides “constant-directivity” horn
equalization and filter-assisted B
6
vented box equaliza-
tion. Biamping and triamping capabilities are provided
via XLR connectors.
Programmable
Input Processor (P.I.P.)
INPUT
3
12
GND
PUSH
CH-2 CH-1
PUSH
INPUT
EDC
P.I.P.-EDCb combines a sophisticated error-driven com-
pressor and smooth limiter with a subsonic filter for each
channel. The compressors have adjustable attack and
release times, and can be set to track each other. The
P
.
I
.
P
.
M
O
D
U
L
E
B
A
C
K
P
A
N
E
L
O
F
A
M
P
L
I
F
I
E
R
Fig. 8.1 Installing a P.I.P. Module
