Crown PIPBEQ Owners manual

P. I . P.

BEQ

–

BEQ

+– +–

OUT IN

CH-2

Programmable
Input Processor (P.I.P.)

© 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:
International, Inc. Other trademarks are the property of their respective
owners.

Printed on

recycled paper.

Crown

®

and

®

P.I.P.

are registered trademarks of Crown

+– +–

IN OUT

CH-1

P.I.P.

modules are

K80780-8

10/97

P.I.P.–BEQ

Page 2

P.I.P.–BEQ

BEQ

+– +–

OUT IN

CH-2

Programmable
Input Processor (P.I.P.)

Fig. 1.1 P.I.P.–BEQ with Barrier Block Connectors

1 Welcome

Thank you for purchasing the
Crown

P.I.P.

install quickly into 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
tures of Bose® Controllers to the in­put of your amplifier. Each channel
includes a custom equalization
network for the Bose loudspeak­ers. Separate response curves al­low the models 8, 25, 32, 802 and

P.I.P.–BEQ

®

modules are designed to

P.I.P.–BEQ

accessory.

adds many fea-

P.I.P.

+– +–

IN OUT

CH-1

502A to be operated as full-range
or bi-amped systems. The equal­ization can be turned off if desired.

Balanced inputs and ‘daisy chain’
outputs use removable barrier
block (shown in Figure 1.1) or XLR
connectors for quick solderless
connection.

Feature Summary

❏ Defeatable Bose loudspeaker

equalization for each channel.

❏ Full-range or bi-amplified equal-

ization curves provided.

❏ Separate ground lift jumper for

both input and ‘daisy chain’ out­put.

Page 3

P.I.P.–BEQ

CA

IHA

FUL SUB

BY EQ

S200

9 10

12345678

ON

BY EQ

R240

D

E

802

B

NORM

9 10

S201

12345678

ON

G

F

S100

9 10

12345678

ON

FUL SUB

BY EQ

NORM

802

BY EQ

S101

9 10

12345678

ON

R140

F

E

Fig. 2.1 Facilities

Page 4

P.I.P.–BEQ

2 Facilities

A. DIP Switches

These DIP switches select the EQ
setting for the various Bose loud­speaker models with which the

P.I.P.-BEQ

can be used.

Mating solderless plugs are in­cluded for barrier block connectors.
The plugs are labelled for correct
wiring.

B. Model 802 Jumper

This jumper is used with the DIP
switches to select the model 802 re­sponse.

C. Daisy Chain Jumper

A jumper block is provided to con­trol the signal that feeds the daisy
chain outputs. When the jumpers
are moved to EQ position, the
daisy chain outputs receive the
equalized signal. If the jumpers
are moved toward the Bypass po­sition, the daisy chained outputs
receive the unaltered input signal.

D. Daisy Chain Ground
Lift Jumper

Remove this jumper to isolate the
daisy chain output ground from
the chassis ground. Isolation is
through an 82-ohm resistor and 0.1­microfarad capacitor.

E. Output Connector

Balanced 3-pin barrier block or
XLR connectors are used for daisy
chain output to other equipment.

F. Input Connector

Balanced 3-pin barrier block or
XLR connectors are used for input
to each channel. Mating solder­less plugs are also provided for
barrier block connectors. The
plugs are labelled for correct wir­ing.

G. Input Ground Lift

Jumper

Remove this jumper to isolate the
input ground from the chassis
ground. Isolation is provided with
an 82-ohm resistor and 0.1-micro­farad capacitor.

H. Equalization Jumper

The Equalization Jumper enables
or disables the loudspeaker
equalization network for each
channel. These jumpers do NOT
affect the daisy chain ouputs.

I. Model 502B Jumper

This jumper is moved to the “SUB”
position to select the 502B
(subwoofer) response curve.

Page 5

P.I.P.–BEQ

Switch Bank S100

Switch Number
Model 12345678910
25 & 32 Full Range ON Off Off ON ON ON Off Off ON ON
25 & 32 Bi-Amplified ON Off Off Off ON ON Off Off ON ON
8 Full Range ON Off Off ON ON ON Off ON ON Off
8 Bi-Amplified ON Off Off Off ON ON Off ON ON Off
402 Full Range Off Off Off ON ON ON ON ON ON Off
402 Bi-Amplified Off Off Off Off Off Off ON ON ON Off
502A Full Range ON Off Off ON ON ON Off Off Off Off
502A Bi-Amplified ON Off Off Off ON ON Off Off Off Off
802 Full Range Off Off ON Off ON Off ON Off ON ON
802 Bi-Amplified Off Off Off Off Off ON ON Off ON ON
502B X XXXXXXXXX

X = switch position is unimportant

Switch Bank S101

Switch Number
Model 12345678910
25 & 32 Full Range ON Off Off Off X Off Off Off ON Off
25 & 32 Bi-Amplified ON Off ON Off X Off Off Off Off Off
8 Full Range ON Off Off Off X Off Off Off ON ON
8 Bi-Amplified ON Off ON Off X Off Off ON Off ON
402 Full Range ON ON ON ON X ON Off ON Off Off
402 Bi-Amplified ON ON ON Off X ON Off Off Off Off
502A Full Range Off Off Off Off X Off Off Off ON Off
502A Bi-Amplified Off Off Off Off X Off Off Off ON Off
802 Full Range ON ON Off Off X ON ON Off ON Off
802 Bi-Amplified ON ON ON Off X ON ON Off Off Off
502B X X X XXXXXXX

X = switch position is unimportant

Page 6

Table 1—S100 and S101 Switch Positions vs Model

P.I.P.–BEQ

Model Z100 Z103
32 Full Range FUL N
32 Bi-Amplified FUL N
8 Full Range FUL N
8 Bi-Amplified FUL N
402 Full Range FUL N
402 Bi-Amplified FUL N
502A Full Range FUL N
502A Bi-Amplified FUL N
802 Full Range FUL 802
802 Bi-Amplified FUL 802
502B SUB X

X = switch position is unimportant

Table 2—802 Response Jumper Positions vs Model

Page 7

3 Installation

The internal jumpers and switches
of the P.I.P.-BEQ must be set prior
to installation. See the previous
section for a description of each
jumper.

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Fig. 3.1 Equalization Response for Model 25, 32, Full Range

The graphs in Figures 3.1 through

3.11 show the typical frequency
response for all valid switch com­binations.

Frequency (Hz)

P.I.P.–BEQ

100000

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.2 Equalization Response for Model 25, 32, Bi-Amplified

Page 8

100000

P.I.P.–BEQ

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.3 Equalization Response for Model 502A, Full Range

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

100000

Fig. 3.4 Equalization Response for Model 502A, Bi-Amplified

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

100000

Frequency (Hz)

Fig. 3.5 Equalization Response for Model 802, Full Range

Page 9

P.I.P.–BEQ

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

Fig. 3.6 Equalization Response for Model 802, Bi-Amplified

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

Fig. 3.7 Equalization Response for Model 402, Full Range

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.8 Equalization Response for Model 402, Bi-Amplified

Page 10

100000

P.I.P.–BEQ

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.9 Equalization Response for Model 8, Full Range

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

100000

Fig. 3.10 Equalization Response for Model 8, Bi-Amplified

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

100000

Frequency (Hz)

Fig. 3.11 Equalization Response for Model 502B

Page 11

3.1 Biamping

Those who are not familiar with Bose
products may need to understand
that Bose handles the biamping of its
loudspeaker products in a different
manner than the traditional industry
practice. Standard industry practice
is to split the audio bandwidth into two
discrete sections divided by 2nd­order (12-dB/octave) or steeper filters
(see Figure 3.12).

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Fig. 3.12 Traditional Industry Practice for Biamping

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.13 Typical Bose Full-

Range Response

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

Fig. 3.15 Bose 502B

Subwoofer Response

Frequency (Hz)

100000

100000

P.I.P.–BEQ

The way Bose uses the biamp desig­nation does not limit the bandwidth
passing to the upper (high pass) sec­tion; however, it does lower the level
of bass equalization employed (see
Figures 3.13 and 3.14). The additional
bass energy required is then derived
from the 502B subwoofer( see Fig­ures 3.25 and 3.16).

100000

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

Fig. 3.14 Typical Bose

Biamplified Response

20

15
10

5

dB

0

-5

-10

-15

-20
10 100 1000 10000

Frequency (Hz)

100000

Fig. 3.16 Typical Bose

Response Using 502B for Bass

Supplement

Page 12

P.I.P.–BEQ

3.2 Installation Procedures

You may need a phillips screwdriver
to remove the existing
or panel from your amplifier.

CAUTION: Before connecting this
or any

P.I.P.

to your amplifier, it is
important to turn its 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
amplifier and unplug it from the
AC power source.

2. Remove the existing

ule or panel (two screws). For

PIP2

amplifiers, this may involve

disconnecting the

PIP2

input adapter (see Figures

3.18 and 3.19). If a
adapter is already present, do not
remove the ribbon cables from
the adapter. Otherwise you will
have to reconnect them in the
next step.

Standard P.I.P. Amplifiers

3.

the edges of the

P.I.P.

card rails and firmly push

P.I.P.

P.I.P.

P.I.P.

PIP2

P.I.P.–BEQ

BACK PANEL

OF AMPLIFIER

module

mod-

from a

input

: Align

in the

P.I.P.

MODULE

the unit in until it is seated against
the mounting bracket (see Figure

3.17).

PIP2 Amplifiers:

(Requires a

PIP2

input adaptor. Crown part num­ber Q43528-1.) Connect the

PIP2

input adapter to the two input
cables of the amplifier (see Figure

3.18). Notice that the

PIP2

input
adapter should be positioned
with the

P.I.P.

edge connector on
top and facing away from the am­plifier. The 20 pin cable (A) is con­nected first then the 18 pin cable
(B) is connected. Both ribbon
cables should extend below the

PIP2

input adapter.

FROM AMPLIFIER

Q43528-1

B
A

A

18 PIN (B)

B

20 PIN (A)

Fig. 3.18 PIP2 Input Adapter

Connection

Next, insert the edge connector of
the

P.I.P.–BEQ

adapter (see Figure 3.19) and in-

into the

BACK PANEL

OF PIP2

AMPLIFIER

PIP2 CONNECTOR

BOARD

PIP2

MODULE

input

P.I.P.

Fig. 3.17 Installation into a

Standard P.I.P. Amplifier

Fig. 3.19 Installation into a

PIP2 Amplifier

Page 13

P.I.P.–BEQ

sert the assembly into the
opening in the back of the ampli­fier.

4. Tighten the two
thumbscrews.

5. Connect input and output wiring.

6. Plug in the amplifier and turn it on.
Adjust its level controls to a de­sired setting. (In Dual mode, the
level controls can now be used to
balance the low and high fre­quencies.)

P.I.P.

P.I.P.

mounting

Do not tamper with the circuitry.
Circuit changes made by unautho­rized personnel, or unauthorized
circuit modifications are not al­lowed.

Remember: Crown is not liable for
any damage resulting from over-

BALANCED

SOURCE

driving other components in your
sound system.

Figure 3.20 shows how to wire a
balanced and unbalanced source
or daisy-chain output to the barrier
block connectors.

Important: If the amplifier is used
in either Bridged-Mono or Parallel­Mono mode, you must turn the Ch.
2 amplifier level control off (fully
counterclockwise). The input and
level control of Ch. 2 are not de­feated in mono mode so any signal
applied to Ch. 2 will beat against
the signal in Ch. 1.

Refer to the amplifier

Manual

for more information about

Reference

Bridged-Mono or Parallel-Mono
modes of operation.

UNBALANCED

SOURCE

Page 14

– + – +

Fig. 3.20 Audio Wiring

P.I.P.–BEQ

4 Specifications

Note: All specifications are refer­enced to a 0.775-V input signal.

Signal to Noise: Greater than 90
dB from 20 Hz to 20 kHz in Bypass
mode. Greater than 85 dB in EQ
mode.

Frequency Response:

from 20 Hz to 20 kHz in Bypass
mode. ±2 dB from the response
curves in Figure 3.1 through 3.6 in
EQ mode.

Harmonic Distortion (THD): Less
than 0.05% THD from 20 Hz to 20
kHz in Bypass mode with a 0 dBu
input signal. Less than 0.1% THD
from 20 Hz to 20 kHz in EQ mode
at 0 dBu.

Common Mode Rejection: Better
than 60 dB up to 1 kHz.

Crosstalk: Less than –60 dB from
20 Hz to 20 kHz.

±0.1 dB

Connectors: Solderless barrier
block or XLR connectors (depend­ing on model) for both input and
daisy chain output.

Input Impedance:

Nominally 50
kohms balanced; 25 kohms unbal­anced.

Maximum Input Level:
Output Impedance:

+20 dB.

(daisy chain
output) Nominally 75 ohms bal­anced.

Maximum Output Level:

(daisy
chain output) +20 dB into a 600­ohm load.

Nominal Gain:
Dimensions:

–6 dBV at 1 kHz

3

6

⁄8 x 17⁄8 x 37⁄8 in.

(16.2 x 4.8 x 9.8 cm).

Notes:

1. All resistor values are in ohms, ¼ W, 5% unless otherwise specified.

2. All capacitor values are in microfarads unless otherwise specified.

3. P1 pins 6, 8, 9, 10, 12-22 are not used.

Page 15

P.I.P.–BEQ

For Technical Support contact:

Crown Audio Division Technical Support Group

Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.

Phone: [phone] (North America, Puerto Rico and Virgin Islands) or 219-294-8200

Fax: [phone] Fax Back (North America only): 800-294-4094 or 219-293-9200

Fax Back (International): 219-294-8100

Internet: http://www.crownintl.com

Page 16