1 welcome, Feature summary – Crown Audio P.I.P.-EDCb User Manual

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P.I.P.–EDCb

Page 3

1 Welcome

Thank you for purchasing the
Crown

P.I.P.-EDCb. P.I.P.

modules are designed to
quickly install in the back of
many Crown amplifiers.

P.I.P.

stands for “Programmable In-
put Processor.” Their versatile
features expand the capabili-
ties of your amplifier and en-
able you to customize it for your
particular needs.

The

P.I.P.-EDCb adds state-of-

the-art error-driven compres-
sion, signal-driven input com-
pression with adjustable thresh-
old and a configurable sub-
sonic (high-pass) filter to each
input of your amplifier. Three
conditions can cause a com-
pressor to activate: (1) if the
compressor receives an “er-
ror” signal from the amplifier’s
input/output comparator (

IOC

)

circuitry, (2) if the input signal
exceeds its adjustable thresh-
old, or (3) if an excessively large

input signal level is sensed.
The compressor circuits acti-
vate ahead of all preamp cir-
cuitry resulting in low distor-
tion.

Each channel’s compressor
can operate independently or
both channels can be tied to-
gether causing the compres-
sors to track each other.

Balanced XLR connectors are
provided for quick connection.

Feature Summary

❏ Error-driven compression

for each channel.

❏ Variable threshold, signal-

driven compression for
each channel.

❏ User-selectable fast/slow

attack and release times.

❏ Each compressor can be

turned off.

❏ Variable subsonic (high-

pass) filter.

Programmable
Input Processor (P.I.P.)

I N P U T

GND

PUSH

C H - 2

C H - 1

PUSH

I N P U T

EDC

Fig. 1.1 P.I.P.-EDCb