Crown PIPATNJ Owners manual

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©

2002 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A.
Telephone: [phone]. Fax: [phone]. Trademark Notice: PIP is a
trademark and Crown , Com-Tech, Macro-Tech and P.I.P. are registered
trademarks of Crown International. Other trademarks are the property of
their respective owners.

127848-3

3/02

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Fig. 1.1 Front View

P.I.P.–ATNJ

Page 2

Fig. 1.2 Bottom View

Reference Manual

P.I.P.–ATNJ

1 Welcome

Thank you for purchasing the Crown

®

P.I.P.

–ATNJ accessory.
grammable Input Processor) mod­ules are designed to quickly install in
the rear panel of Crown

Macro-Tech

®

or Studio Reference se­ries amplifiers. Their versatile features
expand the capabilities of your ampli­fier and enable you to customize it for
your particular needs.

You should find these items when you
unpack:

P.I.P.–ATNJ Module
Two 8-32 Phillips Machine Screws
Two Lock Washers
Two Quick-Disconnect Barrier

Blocks

This Reference Manual

Features

❏ Balanced inputs with 1:1 isolation

transformers to minimize input noise.

❏ RFI filter for attenuation of unwanted

ultrasonic frequencies. The RFI filter
is a 12 dB/octave, Bessel-tuned low­pass filter with a 3 dB roll-off point at
33 kHz.

❏ Switchable subsonic/bass filter with

the following settings: flat, 50, 100,
or 300 Hz roll-off.

❏ Switchable constant-directivity horn

equalization network.

❏ Calibrated 21 position attenuators

give accurate level control of the in­put signal.

❏ Removable barrier block connectors

provide greater wiring flexibility and
easy installation.

™

PIP

(Pro-

Com-Tech

Facilities

A. Balanced Input

These removable barrier-block con­nectors (Figure 1.1) make it quick and
easy to attach an input cable with just

®

three screws. Once the cable is at-

,

tached, the connector can be quickly
unplugged and, if desired, moved to
a different amplifier.

B. Input Attenuators

Each channel has a calibrated at­tenuator (Figure 1.1) for accurate
level adjustment. They have 21
detented positions which “click” into
place for ease of use.

C. Subsonic/Bass Switch

A 4-position slide switch for each
channel (Figure 1.2) controls the sub­sonic/bass filter. This filter is an 18 dB/
octave Butterworth high-pass filter
which can be selected to attenuate
frequencies below 50 Hz, 100 Hz or
300 Hz. It can also be switched off
(FLAT). The switch positions are la­belled on the circuit board between
the two switches.

D. Horn Equalization Jumper

A jumper is provided for each chan­nel (Figure 1.2) to enable/disable the
constant-directivity horn equalization.
The jumper for channel 1 (EQ1) is
shown in the ON position while the
channel 2 jumper (EQ2) is shown in
the OFF position. This equalization
circuit 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.

Reference Manual

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