Crest Audio NC-AES - TECHNICAL Manuel d'instructions

NC-AES AES/EBU Digital Input

INPUT PROCESSING MODULE

FOR CKS, CKV & CKX SERIES

POWER PROCESSING AMPLIFIERS

Features:

• Attenuation programmed by NexSys, N-Coder/PC software, or hand-held N-Coder.

• Balanced post-processing loop-thru outputs on barrier strip connectors

• AES/EBU digital input

• Simple setup, tamper-proof configuration

• Amp channel gain pot knobs removable for security

Product Information

The NC-AES Module fits in the Input Processing bay located on the rear

panel of Crest Audio CKS, CKV & CKX Series Power Processing

amplifiers. It provides digital input via an AES/EBU digital port.

Two balanced analog outputs are provided to daisy chain to additional

amp channels requiring the same analog signal.

Individual channel attenuators are provided with removable knobs for

extra security. The NC-AES 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 imple-

mentation.)

Architects and Engineers Specifications - NC-AES.

The module shall plug into Crest Audio CKS or CKV Power Processing amplifiers in the

Input Processing bay. The module shall provide an input connection of AES/EBU type on a

three-pin XLR.

Two analog outputs on a barrier strip connector shall be provided to loop-thru out to addi-

tional amp channels requiring the same analog processing.

Two removable-knob gain pots shall be provided that control the level of each amplifier

channel independent of programming. The module shall be designated the Crest Audio

model NC-AES.

PUSH

Model NC-AES

Error

Daisy Chain

AES/EBU

In Output A Output B

++–

–

346

N-Coder

Data

Port

Level

Model

Name

CKS 100

CKS 200

CKS 400

CKS 800

CKS 800-2

CKS 1200-2

CKS 1600-2

Output Power

@8Ω/Ch.

50W

100W

200W

400W

600W

800W

Model

NC-NXS

Data

Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

Designed & manufactured in the USA by:

Network

+– +–

Address

Model

Name

CKV 100

CKV 200

CKV 400

CKV 800

CKV 1600

CKV 2400

Output Power

@70.7V

50W

100W

200W

400W

800W

1200W

PC Lap-Top running

N-Coder/PC software

N-Coder

Crest Audio

Revision 1.03E

NexSys Bus

AES/EBU

Digital

Signal

Source

To other

amplifiers

NC-AES connections

Power

Processing

Modules

AES/EBU Digital Input

CH A

Power

Amp

CH B

Power

Amp

I/F

ckt

NexSys

Module Bus

DAC

AES

RCVR

AES/EBU

Vosc

For LM

CH A

OUT

CH B

OUT

N-Coder

Data Port

Atten

Daisy

Chain

BLOCK

DIAGRAM

Crest Audio Inc.

100 Eisenhower Dr., Paramus NJ 07652 USA

TEL: 201.909.8700 FAX: 201.909.8744

http://www.crestaudio.com

Printed in USA

NC-AES Input Processing Module

CONTROL OPTIONS

The following NC-AES parameters can be con-

trolled by the hand-held N-Coder, N-Coder/PC

software, or via NexSys software.

N-Coder:

Channel A & B attenuation, phase reverse

N-Coder/PC software:

Channel A & B attenuation, phase reverse, muting

NexSys computer control:

Channel A & B attenuation, phase reverse, solo,

muting, input and output VU metering

SPECIFICATIONS

Digital-to-analog converters: 18-bit

Dynamic range: 100dB

Max input level: +22dBu

THD: 0.005%

Signal-to-noise ratio: 100dB

Common mode rejection: 100 dB

Frequency response: 20Hz-20kHz

Input sensitivity: 0dBFS

Connectors: AES/EBU input (XLR),

Balanced loop-thru daisy-chain outputs

on barrier strips with 0.325" (8mm) center

and 0.27" (7mm) lug space,

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

Controls: 2 gain attenuators (w/removable knobs)

Indicators: Data error LED

v. 2.1 4/7/97

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.

*A3300020*

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