CS 2
Conference system
Description
The AKG CS2 is a fully modular and cascadable, user
operated, push to talk discussion reinforcement system
available in portable tabletop format or as an installed system.
The CS2BU Base Station occupies a single rack space, the
CS2BU features intelligent functions such as automatic NOM
(Number of Open Microphones) limitation, selectable voice
activation, which can be set to automatically open
microphones as soon as they are spoken into. Other functions
include output level controls for global speakers level,
headphones, balanced outputs as well as input control for line,
aux and microphone station input level.
Delegate stations have a push to talk button as well as
individual speaker level control and 3.5 mm headphone jacks.
Chairman Stations differ from delegate stations only in that
they feature a priority button allowing the user to override all
other microphones.
All microphone stations can be customized to the individual
user through bottom panel dipswitches and pots that allow a
variety of functions to be adjusted individually. Those functions
include:
• Voice activation on/off
• Voice activation threshold
• Voice activation hold time
• Microphone auto-mute (after user stops talking)
• Enable/disable NOM limitation
• Priority override exemption
• Voice zoom on/off
• Loudspeaker/headphones level reset or last setting
• Adjustable compression
• Adjustable mic input level
Voice zoom detects and optimizes the signal arriving at each
microphone, acting like a camera’s lens “focusing” on the
sound source. The microphone “zooms in or out“ to a person’s
voice, using a combination of leveler, limiter and compressor
helping to equalize different sound levels caused by varying
distances, input angles and/or source strengths.
Features
• Condenser Microphone capsules:
CK31-cardioid, CK32-omni,
CK33-hypercardioid, CK47-hypercardioid
& CK80-hypercardioid
• Modular goosenecks: GN50CS (19.85”)
GN30CS (12.23”)
• Microphone stations: CS2CU portable chair
station, CS2DU portable delegate station,
CS2CUfix installed chair station, CS2DUfix
installed delegate station
• Connecting cables: CSMK1.25fm (4 ft.),
CSMK2.5fm (8 ft.), CSMK5fm (16.5 ft),
CSMK10fm (33 ft.), CSMK20fm (66 ft.)
CSMK100oc/mob (100 meter spool – no
connecters)
• Base Station: CS2BU - Central control unit
for up to 200 Microphone Stations
• Power Supplies: CSPS20 - powers up to 40
delegate & chair stations
• CSPS100: Powers up to 200 delegate & chair
stations
CS2CU & CS2DU
(portable mic station)
CS2BU Base Station
4.590" [116.6mm]
5.150" [130.8mm]
8.110" [206.0mm]
8.720" [221.5mm]
5.335" [135.5mm]
10.080" [256.0mm]
9.218" [234.1mm]
1
Mic. sensitivity
DIP SWITCH
3
5
4
Voice Control
Auto-Mute
Mute delay
2
low
OFF
on
off
off
12 secs.
NOM Limitation
Level
7
8
Compression
off
reset
off
Priority mode
6
high
ON
off
on
on
6 secs.
on
Made in Austria
last. adj.
on
86532
4 7
1
ON
9.322" [236.8mm]
0.115" [2.9mm]
5.150" [130.8mm]
6.733"
[171.0mm]
8.720" [221.5mm]
10.080" [256.0mm]
10.745" [272.9mm]
AKG
+
0.236" [6.0mm]
2 DU
CS
CS2CU / CS2DU
CS2CUfix / CS2DUfix
12.230"
[310.6mm]
19.850"
[504.2mm]
GN50CS
GN30CS
TOP
BOTTOM
BOTTOM
TOP
SIDE
SIDE
10.118" [257.0mm]
CS
2 CU
5.975"
[151.8mm]
8.780" [223.0mm]
5.802"
[147.4mm]
5.975"
[151.8mm]
AKG
+
6.733" [171.0mm]
0.240" [6.1mm]
2.123" [53.9mm]
2.420"
[61.5mm]
5.335" [135.5mm]
ON
5
1234876
7
5
3
8
6
4
Priority mode
NOM Limitation
Level
Compression
Voice Control
Auto-Mute
reset
off
off
off
off
on
Made in Austria
last. adj.
off
on
ononon
2
1
Mute delay
12 secs.
lowMic. sensitivity
6 secs.
high
DIP SWITCH
OFF
ON
Specifications
CS2DU/CU
INPUTS
Compatible microphones:
CK31, CK32, CK33, CK47,
or CK80 in conjunction with GN30CS
or GN50CS
Type: Unbalanced, with DC supply voltage
Input impedance: 1.5 k Ω
Supply voltage: 5.5 V DC
Max. input level for <1% Thd, V out <+3 DB:
25 dB
OUTPUTS
LINE
Connector: 15-pin male HD D-sub
Type: Transformer balanced, floating
Rated output level: +10 dBu
Audio bandwidth: 55 to 35,000 Hz
S/N Ratio, 22 to 22 kHz, QPK:
81 dB
System compatibility: Microphone Station input on Base
Station, compatible with CS 1
THD @ 1kHz: 0.25%
EIN with noise gate, 22 Hz to 22kHz; QPK:
-105 dBu
HEADPHONES AND BUILT-IN SPEAKERS
Headphones connectors: 2 x mini TRS jacks
Output power for <1% THD:
0.48 W
Min. headphones load impedance:>8 Ω
Audio bandwidth: 30 to 45,000 Hz
S/N, 22 to 22 kHz, QPK: 81 dB
THD @ 1 kHz: 0.25%
Equivalent noise level with noise gate, 22 Kz to 22 kHz:
-92 dBu
Digital potentiometer attanuation:
32 stages from 0 to –42 dB linear,
–82 dB max.
SYSTEM
Adjustable functions: Voice activation threshold
Voice activation hold time
Microphone automute ON/OFF
Enable/disable NOM limitation
Voice activation ON/OFF
Priority level
Compression ON/OFF
"Voice zoom" ON/OFF
Headphones/speaker volume
reset/last setting
Adjustable compression
Operating voltage: 23 to 36 VDC
Current consumption: 35 to 63 mA
Max. power requirement: 1.9 watts
Size (lxwxh, Desktop version):
1.0 x 6.0 x 2.9 in. (257 x 153 x 74 mm)
Net/shipping weight: 2.1 lbs. / 3.3 lbs. (950 g / 1500 g)
Finish: Blue Line gray / matte black
Package contents: Station without microphone and cables
Specifications
CS2BU
INPUTS
MICROPHONE STATIONS
Connector: 4 x 15-pin male HD D-sub
Input level: +10 dBu (compatible to CS 1)
Type: Electronically balanced
Max. input level for <1% THD:
+13 dB
LINE
Connector: 3-pin female XLR
Input level: ±0 dBu
Type: Transformer balanced
Input impedance @ 1 kHz:
30 k Ω
Max. input level for <1% THD:
17 dB
AUX
Connector: 2 x female RCA
Input level: -10 dBu
Type: Unbalanced
Input impedance @ 1 kHz:
33 k Ω
Max. input level for <1% THD:
+15 dB
OUTPUTS
RECORD
Connector: 2 x female RCA
Output level: ± 0 dBu
Max. output level for <% THD:
+17 dBu
Audio bandwidth: 15 to 50,000 Hz
Min. load impedance: 500 Ω
THD @ 1kHz: 0.01%
S/N, 22 to 22 KHZ, QPK: 88 dB
LINE
Connector: 3-pin male XLR
Output level: ±0 dBu
Max. output level for <% THD:
+10 dBu
Audio bandwidth: 20 to 40,000 Hz
Min. load impedance: 300 Ω
THD @ 1kHz: 0.02%
S/N, 22 to 22 KHZ, QPK: 88 dB
HEADPHONES
Connector: 1/4" TRS jack
Bandwidth: 17 to 25,000 Hz
Output level: ±0 dBu
Max. output level for <% THD:
+14 dBu
Min. Impedance: 150 Ω
THD @ 1kHz: 0.05%
S/N, 22 to 22 KHZ, QPK: 82 dB
Microphones · Headphones · Wireless Microphones · Wireless Headphones · Headsets · Electroacoustical Components
Limited Warranty
Valid only in the United States. AKG Acoustics warrants AKG products against defects in material
or workmanship for a period of two years from the date of original purchase for use, and agrees to
repair or, at our option, replace any defective unit without charge for either parts or labor. Important:
This warranty does not cover damage resulting from accident, misuse or abuse, lack of reasonable
care, the affixing of any attachment not provided with the product, loss of parts or connecting the
product to any but the specified receptacles. This warranty is void unless service or repairs are
performed by an authorized service center. No responsibility is assumed for any special, incidental
or consequential damages. However, the limitation of any right or remedy shall not be effective
where such is prohibited or restricted by law. Simply take or ship your AKG product prepaid to our
service department. Be sure to include your sales slip as proof of purchase date. (We will not repair
transit damage under the no-charge terms of this warranty.) Note: No other warranty, written or oral
is authorized by AKG Acoustics, Inc. This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state. Some states do not allow the exclusion or
limitation of incidental or consequential damages or limitation on how long an implied warranty
lasts, so the above exclusions and limitation may not apply to you.
Specifications subject to change without notice.
AKG Acoustics GmbH
Lemböckgasse 21–25, P.O.B. 158, A-1230
Vienna/AUSTRIA
Tel: (43 1) 86 654-0*, Fax: (43 1) 86 654-516
Internet: http://www.akg.com
AKG Acoustics; A Division of Harman Pro Germany
Bodenseestraße 228, D-81243 München/GERMANY
Tel: (089) 87 16-0, Fax: (089) 87 16-200
Arbiter Pro Audio
Wilberforce Road, London NW9 6AX/ENGLAND
Tel: (0181) 202 1199, Fax: (0181) 202 7076
AKG ACOUSTICS, U.S.
914 Airpark Center Drive
Nashville, TN 37217, U.S.A.
Tel: (615) 620-3800, Fax: (615) 620-3875
Studer Japan Ltd.
2-43-7, Uehara, Shibuya-ku, Tokyo 151-0064/JAPAN
Tel: (813) 3465-2211, Fax: (813) 3465-2214
Erikson Pro Audio
620 McCaffrey, St-Laurent, Quebec, H4T 1N1, CANADA
Tel: (514) 738-3000, Fax: (514) 737-5069
Internet: www.jam-ind.com/eriksonpro
The conference system shall be a modular, single-cable system
for quick installation. A base station shall control up to 200
microphone stations and provide expansion ports for setting up
systems with more than 200 microphone stations. The system
shall be compatible with most current types of signal sources,
recording devices, sound systems, teleconferencing systems,
etc. The system shall include a chairperson station with a priority
button. Both the chairperson station and the delegate station
shall be available in a desktop version for mobile systems and a
table mount version for fixed installation. Goosenecks in two
different lengths (approx. 12 in./30 cm and approx. 20 in./50 cm)
and five different microphone capsules for optimum voice pickup
shall also be available. All types of microphone stations shall
provide a "Voice Zoom" function and other individually
adjustable functions including voice activation, automatic mute
after prolonged pauses, noise gate, etc. The system shall be the
AKG Acoustics Model CS 2.
Architects and Engineers Specifications
DS-CS 2
EFFECTS
Connector: 1/4" TRS jack
Output level: ±0 dBu
Input impedance: <4.7 k Ω
Min. load impedance: 220 Ω
SYSTEM
Operating voltage: 23 to 36 VDC
Current consumption: 170 to 200 mA
Max. power requirement: 7.2 watts
Size (lxwxh): 6.7 x 17 x 1.7 in. (170 x 430 x 44 mm)
Net/shipping weight: 5.5 lbs. / 7.1 lbs. (2.5 kg / 3.2 kg)
Package contents: Base Station (without power supply),
User Instructions
ACCESSORIES FOR THE CS2 CONFERENCE SYSTEM
CK31, 32, 33, 47, 80 Discreet Acoustics Series microphone
capsule
CSMK2.5fm: Connecting cable, 8 ft. 3 in. (2.5 m)
CSMK5fm: Connecting cable, 16 ft. 5 in. (5 m)
CSMK10fm: Connecting cable, 33 ft. (10 m)
CSMK20fm: Connecting cable, 66 ft. (20 m)
GN30CS: Gooseneck, approx. 12 in. (30 cm) long
GN50CS: Gooseneck, approx. 20 in. (50 cm) long
CSMK100oc/fi: 328-ft. (100 m), 0.4-in. (9.5 mm) dia. cable
for permanent installation
CSMK100oc/mob: 328-ft. (100 m), 0.26-in. (6.5 mm) dia.
cable for mobile installation
CSCONfm/fi: Female D-sub connector
for permanent installation
CSCONm/fi: Male D-sub connector
for permanent installation
CSCONfm/mob: Female D-sub connector
for mobile installation
CSCONm/mob: Male D-sub connector
for mobile installation
CSCONfloor/m/fi: Male D-sub floor connector
CSCONsplit2/m/mob: Male/male D-sub adapter
CSCONsplit4/m/mob: 4 x male D-sub splitter
CSMKAC–US: US power cable
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