Crest Audio NC-AES - TECHNICAL Instruction manual

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
++–
–
78
9
5
2
0
1
346
10
78
9
5
2
0
1
346
10
N-Coder
Data
Port
Level
B
Level
A
8
1
9
2
A
3
B
4
C
5
D
6
E
7
F
8
1
9
2
A
3
B
4
C
5
D
6
E
7
F
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
400W
600W
800W
Model
NC-NXS
Hi
Data
Lo
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
OR
PC Lap-Top running
N-Coder/PC software
N-Coder
Crest Audio
Revision 1.03E
NexSys Bus
AES/EBU
In
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
In
Vosc
For LM
CH A
OUT
CH B
OUT
N-Coder
Data Port
Atten
Atten
ID
Daisy
Chain
BLOCK
DIAGRAM
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
TEL: [phone] FAX: [phone]
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.
Contact Crest Audio Inc. for more information. NexSys is a registered trademark of Crest Audio Inc. ©1996 Crest Audio Inc.
*A3300020*