Crest audio NC-IPN DATASHEET

Power
Processing

INPUT PROCESSING MODULE

Modules

FOR CKS, CKV & CKX SERIES

POWER PROCESSING AMPLIFIERS

NC-IPN Programmable Gain Input

Product Information

The NC-IPN Module fits in the Input Processing bay located on the rear
panel of Crest Audio CKS, CKV & CKX Series Power Processing
amplifiers. It includes programmable gain elements and provision for
optional input isolation transformers. In conjunction with NexSys®soft­ware, the hand-held N-Coder or N-Coder/PC software, the NC-IPN can
also function as a precision attenuator in NexSys and non-NexSys con­trolled applications.

Features:

• NexSys-compatible gain control

• Programmable precision attenuation via NexSys network, N-Coder or N-Coder/PC software.

• Balanced input barrier strip connectors • Removable gain pot knobs for security

• Input isolation transformers optional • Simple setup, tamper-proof configuration

Internal Features:

• Jumper-selectable gain of X20 (26 dB), X40 (32 dB, factory setting), or constant sensitivity for full output at 0dBu (.775V) in.

An internal jumper selects between gains of X20 (26 dB), X40 (32 dB),
or constant sensitivity for full output at 0dBu (.775V) in. The standard
factory setting is for X40 (32dB). Individual channel attenuators are pro­vided with removable knobs for extra security. The NC-IPN is program­mable via NexSys, the hand-held N-Coder or N-Coder/PC software.
(NexSys-compatible Power/Output and Network NC modules are
required for NexSys implementation.)

NC-IPN connections

PC Lap-Top running

N-Coder/PC software

S 2
MAY

ED

ut

l

d

er

Designed & manufactured in the USA by:

Model

Output Power

Name

@70.7V

CKV 100

50W

CKV 200

100W

CKV 400

200W

CKV 800

400W

CKV 1600

800W

CKV 2400

1200W

Network

+–

+–

NexSys Bus

Data

Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA

Model

Output Power

Name

@8Ω/Ch.

CKS 100

50W

CKS 200

100W

CKS 400

200W

CKS 800

400W

CKS 800-2

400W

CKS 1200-2

600W

CKS 1600-2

800W

Address

F

F

1

1

E

2

2

D

3

3

C

4

4

B

5

5

A

6

6

9

7

8

7

8

Hi

Lo

Input B

+

N-Coder

–

Model
NC-IPN

Level

Level

5

4

6

A

3

7

2

8

1

9

0

10

5

4

6

B

3

7

2

8

1

9

0

10

Crest Audio

OR

N-Coder
Data
Port

Model
NC-NXS

E

D

C

B

A

9

Revision 1.03E

Input A

–

+

Architects and Engineers Specifications - NC-IPN.

The module shall plug into Crest Audio CKS or CKV Power Processing amplifiers in the
Input Processing bay. The module shall be NexSys-compatible. Barrier strip input connec­tions shall be provided which feed two electronically balanced inputs. Two removable-knob
gain pots shall be provided that control the level of each input.

Input

Signal A

Input

Signal B

An internal input sensitivity/voltage gain jumper shall be provided with selections of 0dBu,
X20 and X40. Programmable gain elements shall be provided that can be controlled/pro­grammed either by NexSys via an NC-NXS module (if fitted), a hand-held N-Coder or N­Coder/PC software. The module shall be designated the Crest Audio model NC-IPN.

NC-IPN Input Processing Module

Programmable Gain Input

BLOCK
DIAGRAM

CH A

+

-
G

CH B

+

-
G

N-Coder
Data Port

Optional

Optional

Atten

Atten

I/F
ckt

ID
ckt

Vosc Input for Load Monitor

Gain

CH A Power Amp

Level

Gain

CH B Power Amp

NexSys
Module Bus

SPECIFICATIONS

CONTROL OPTIONS

Input impedance: 25kΩ

The following NC-IPN parameters can be con-

Signal-to-noise ratio: 105dB
Common mode rejection: 100dB

trolled by the hand-held N-Coder, N-Coder/PC
software, or via NexSys software.

Frequency response: 20Hz-20kHz
Programmable gain range: 0 to -83dB

N-Coder:

Voltage gain/input sensitivity: X20 (26 dB),

Channel A& B attenuation, phase reverse

X40 (32 dB),

or constant sens. for full output at 0dBu (.775V) in

N-Coder/PC software:

Channel A& B attenuation, phase reverse, muting

Connectors: Balanced inputs

on barrier strip connector

with 0.325" (8.3mm) screw center

and 0.270" (6.9mm) lug space,

NexSys computer control:

Channel A& B attenuation, phase reverse, solo,
muting, input and output VU metering

RJ-14 (‘RJ-11 6-pin’) N-Coder data port

Controls: 2 gain attenuators (w/removable knobs)

Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification. Crest Audio specification literature is available in electronic form to qualified users.

Contact Crest Audio Inc. for more information. NexSys is a registered trademark of Crest Audio Inc. ©1996 Crest Audio Inc.

v. 2.1 4/7/97

*A3300024*

100 Eisenhower Dr., Paramus NJ 07652 USA

Crest Audio Inc.

TEL: [phone] FAX: [phone]

http://www.crestaudio.com

Printed in USA