Crown PIPFTE Owners manual

P.I.P.- FTE

P.I.P.

+–

–

FTE

+–

+ = NON-INVERTING
– = INVERTING

© 1997 by Crown International, Inc., P.O. Box 1000, Elkhart, IN 46515-1000
U.S.A. Telephone: [phone]. Fax: [phone].
produced by the Professional Audio Division of Crown International, Inc.
Trademark Notice:
registered trademarks of Crown International, Inc. Other trademarks are the
property of their respective owners.

Printed on

recycled paper.

Crown

CH 2 CH 1

BALANCED INPUTS

®

,

Macro-Tech

®

,

Com-Tech

—CAUTION—

DO NOT USE AMPLIFIER PHONE JACKS

WITH THIS MODULE PLUGGED IN.

P.I.P.

modules are

®

®

,

IOC

and

P.I.P.

125512-1

®

11/97

are

P.I.P.–FTE

Page 2

P.I.P.–FTE

P.I.P.- FTE

+ = NON-INVERTING
– = INVERTING

+–

CH 2 CH 1

BALANCED INPUTS

Fig. 1.1 P.I.P.-FTE

1 Welcome

Thank you for purchasing the
Crown P.I.P.-FTE accessory.

®

P.I.P.

modules are designed to
quickly install in the rear panel of
many Crown amplifiers.
stands for “Programmable Input
Processor.” Their versatile fea­tures expand the capabilities of
your amplifier and enable you to
customize it for your particular
needs.

The P.I.P-FTE employs balanced
transformers to isolate the inputs

Com-Tech

of

®

or

Macro-Tech

series amplifiers. This adds valu­able isolation from shorted input
cables, faulty wiring and com­mon mode noise.

P.I.P.

+–

—CAUTION—

DO NOT USE AMPLIFIER PHONE JACKS

WITH THIS MODULE PLUGGED IN.

• P.I.P.-FTE module

• Two 8-32 Phillips Machine
Screws

• Two Lock Washers

• Two Quick-Connect Barrier
Blocks

• This Owner’s Manual

Features

❏ Balanced inputs with 1:1 iso-

lation transformers to help
keep the input noise-free.

❏ RFI filter which attenuates un-

®

wanted ultrasonic frequencies
that would otherwise waste am­plifier power. The RFI filter is a 12
dB/octave (2nd order), Bessel­tuned low-pass filter with a 3 dB
roll-off point at 33 kHz.

In addition to transformer isola-

P.I.P.

tion, this

provides two im­portant filters to attenuate un­wanted ultrasonic and subsonic
frequencies.

A horn equalization circuit is also
available to compensate for the
high-frequency roll-off of con­stant-directivity horns.

You should find these items when
you unpack:

❏ Switchable subsonic/bass fil-

ter with 50-, 100- or 300-Hz
roll-off frequencies.

❏ Constant-directivity horn

equalization network which
can be switched on or off.

❏ Quick-connect barrier block

connectors provide greater
wiring flexibility and make in­stallation easier.

Page 3

P.I.P.–FTE

Front View

P.I.P.- FTE

+ = NON-INVERTING
– = INVERTING

Bottom View

+–

CH 2 CH 1

BALANCED INPUTS

S2 S1

FLAT

50 Hz
100 Hz
300 Hz

Fig. 2.1 Facilities

2 Facilities2 Facilities

2 Facilities

2 Facilities2 Facilities

A. Balanced Input

With these special quick-connect
barrier-block connectors (Figure

2.1), it’s quick and easy to attach
each input cable with just three
screws. Once the cable is at­tached, the connector can be
quickly unplugged and, if desired,
moved to a different amplifier.

B. Subsonic/Bass Switch

A 4-position sliding switch is pro­vided for each channel to control
the subsonic/bass filter. This filter
is an 18-dB/octave (3rd order)
Butterworth high-pass filter which

A

+–

—CAUTION—

DO NOT USE AMPLIFIER PHONE JACKS

WITH THIS MODULE PLUGGED IN.

J2 J1

FLAT
50 Hz
100 Hz
300 Hz

ON

CB B

can be selected to attenuate low
frequencies below 50 Hz, 100 Hz or
300 Hz. It can also be switched off
(Flat). A label on the side of each
switch identifies the switch settings.

C. Constant-Directivity
Horn Equalization Jumper

A jumper is provided for each
channel to enable/disable the con­stant-directivity horn equalization.
The jumper for channel 1 (J1) is
shown in the “OFF” position while
the jumper for channel 2 (J2) is
shown in the “ON” position. The
constant directivity horn equaliza­tion is a 6-dB/octave shelving net­work with a 3 dB rise at 3.2 kHz and
a peak boost of 12.5 dB at 24 kHz.

OFF

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