Crown PIPCLP Brochure

P.I.P.-CLP

© 2005 by Crown Audio®, Inc., 1718 W. Mishawaka Rd. 46517-9439 U.S.A. Tele­phone: [phone]. Fax: [phone]. PIP modules are produced by Crown
Audio, Inc. Trademark Notice: Studio Reference, PIP, PIP2 are trademarks and
Crown, Crown Audio, Amcron, Macro-Tech, Com-Tech, IOC and P.I.P. are regis­tered trademarks of Crown International. Other trademarks are the property of their
respective owners.

Obtaining Other Language Versions:

To obtain information in another language about the use of this product, please
contact your local Crown Distributor. If you need assistance locating your local
distributor, please contact Crown at 574-294-8200.

Note: The information provided in this manual was deemed accurate as of the
publication date. However, updates to this information may have occurred. To
obtain the latest version of this manual, please visit the Crown website at www.
crownaudio.com.

Printed on

recycled paper.

101641-5

8/05

P.I.P.-CLP

Page 2

Reference Manual

P.I.P.-CLP

Fig. 1 The P.I.P.-CLP

1 Welcome

Thank you for purchasing the
Crown P.I.P.®-CLP accessory.

PIP™ modules are designed to

install easily into the back panel
of many Crown amplifiers. PIP
stands for “Programmable Input
Processor.” Their versatile fea­tures expand the capabilities of
your amplifi er and enable you to
customize it for your particular
needs.

The P.I.P.-CLP is designed to
detect and reduce overload in
the output stages of Crown Com-

Tech,® Macro-Tech® and Studio
Reference™ amplifi ers. As the am-

plifi er output reaches the clipping
threshold, an internal error signal
activates the P.I.P.-CLP which
reduces the input gain of the am­plifi er at a fast yet audibly unde­tectable rate. This feature provides
an additional 13 dB of input signal
headroom, making it virtually im­possible to overload the amplifi er.
By following the simple installa-

tion instructions in this manual,
you will expand your amplifi er to
include these capabilities.

Specifi cations

Connectors: Two female XLR in­puts; pin 1 is ground, pin 2 is posi­tive (+) and pin 3 is negative (–).

Signal-to-Noise: –85 dB (refer­enced to 0.775 volts) equivalent
input noise from 20 Hz to 20 kHz.

Frequency Response: Flat
±0.2 dB from 20 Hz to 20 kHz.

Input Impedance (Nominal):
20 k ohms balanced and 10 k
ohms unbalanced.

Limiter Action: Range of lim­iter action is restricted to 13 dB
(nominal). Threshold is set to
the point of amplifier overload.
Compression attack time is 0.35
milliseconds; decay time is 160
milliseconds.

Reference Manual

Page 3

2 Installation

You may need a Phillips screw­driver to remove the existing PIP
module or panel from your ampli­fi er.

CAUTION: Before connecting
this or any PIP to your ampli­fi er, it is important to turn the
amplifi er's level controls down,
turn it off and remove the AC
power. Don’t touch the circuitry.
Even though the amplifier is
off, there could still be enough
energy remaining to cause elec­tric shock.

1. Turn down the level controls
(full counterclockwise), turn
off the amplifi er and unplug it
from the AC power source.

2. Remove the existing PIP
module or panel (two screws).
For PIP2TM amplifi ers, this
may involve disconnecting the
PIP from a PIP2 input adapter
(see Figures 2.2 and 2.3). If a
PIP2 input adapter is already
present, do not remove
the ribbon cables from the

P.I.P.-CLP

adapter. Otherwise you will
have to reconnect them in the
next step.

3. Standard PIP Amplifi ers: Align
the edges of the P.I.P.–CLP
in the PIP card rails and
fi rmly push the unit in until it is
seated against the mounting
bracket (see Figure 2.3).

PIP2 Amplifi ers*: (Requires

a PIP2 input adaptor, Crown
part number Q43528-1.) Con­nect the PIP2 input adapter

FROM AMPLIFIER

PIP2 ADAPTER

B
A

B

A

18 PIN (B)

20 PIN (A)

Fig. 2.2 PIP2 Input Adapter

Connection

to the two input cables of the
amplifi er (see Figure 2.2).
Notice that the PIP2 input
adapter should be positioned
with the PIP edge connector
on top and facing away from
the amplifi er. The 20-pin cable
(A) is connected fi rst, then the
18-pin cable (B) is connected.
Both ribbon cables should
extend below the PIP2 input
adapter.

Fig. 2.1 Installation into a

Standard PIP Amplifi er

Page 4

* Note: The P.I.P.– CLP is not compatible

with Crown CTs amplifi ers.

Reference Manual