AKG Blue Line Series
Condenser Microphones

CK 97-CVR

CK 97-C
C 97-0Description
The AKG Blue Line Series consists of a family of directional
prepolarized condenser capsules and microphone configurations
that are all compatible with a single powering/output assembly.
Because of the general popularity of the cardioid pattern, theCK 91 cardioid capsule and SE 300 B powering/output assembly
are sold as a single unit, the AKG Model C 391 B microphone.
The remaining Blue Line capsules offer the following patterns:
CK 92 (omnidirectional), CK 93 (hypercardioid), CK 94(bidirectional), and CK 98 (shotgun capsule, high directivity).
Three additional configurations are available: CK 97-O
(omnidirectional lavalier), CK 97-C (cardioid lavalier), CK 97-CVR(cardioid gooseneck with bass roll-off). The Blue Line Series issuitable for studio, live sound, and a variety of speechreinforcement applications, where the facility for switching
capsules is a major advantage. The positive Modulock™
bayonet design allows these changes to be made quickly. TheBlue Line microphones exhibit accurate axial response anduniform pattern control. Self noise and maximum operatinglevels are exemplary, creating a very wide usable dynamic range
for the most demanding operations. The SE 300 B powering/output assembly provides for 10 dB of attenuation for operation
at high sound pressure levels, as well as a 12 dB/octave low cut
below 75 Hz for close usage. A complete line of optional
accessories is available including an extension cable for
operating the microphone capsule up to 10 ft. (3 meters) fromthe powering/output module.

Features• Multiple directional capsules andconfigurations available on astandard powering/output module• Positive-action Modulock™
bayonet capsule mounting system• Capsule designs employ gold
sputtered diaphragms• High sensitivity• High acoustic level capability

Graphical Data
CK 91

On-axis Frequency Response(measured at 1 meter)

Polar Response

CK 92

On-axis Frequency Response(measured at 1 meter)

Polar Response

CK 93

On-axis Frequency Response(measured at 1 meter)

Polar Response

CK 94

On-axis Frequency Response(measured at 1 meter)

Polar ResponseSpecifications
Models:C 391 B

CK 92

Transducer Principle:
Frequency Range

CK 93CK 94

CK 97-0

CK 97-CCK 97-CVR

CK 98

All models prepolarized condenser capsules.
20–20,000 Hz

20–20,000 Hz

20–20,000 Hz

20–20,000 Hz

20–18,000 Hz

Omnidirectional Hypercardioid150–18,000 Hz 150–18,000 Hz

20–20,000 Hz

Polar Pattern:

Cardioid

Bidirectional

Omnidirectional

Cardiod

Cardiod

Directional

Sensitivity at 1,000 Hz:

10 mV/Pa(-40 dBV)

10 mV/Pa(-40 dBV)

10 mV/Pa(-40 dBV)

10 mV/Pa(-40 dBV)

10 mV/Pa(-40 dBV)

12 mV/Pa(-38 dBV)

12 mV/Pa(-38 dBV)

25 mV/Pa(-32 dBV)

Equivalent Noise Level:

17 dB-A

17 dB-A

17 dB-A

22 dB-A

24 dB-A

26 dB-A

26 dB-A

17 dB-A

SPL for 1% THD:

132 dB132 dB132 dB132 dB

120 dB

120 dB

120 dB

124 dBS/N Ratio (A-weighted):

77 dB

77 dB

77 dB

72 dB

70 dB

68 dB

68 dB

77 dB––

Electr. Impedance:< 200 ohms

Load Impedance:> 1,000 ohms

Power Requirement:

9 to 52 Vdc phantom powering for SE300B

Connector:

All models XLR male output when connected to SE300B

Cable Length:––––

10 ft. (3 m)

10 ft. (3 m)Finish:

All models dark gray matte finish.

Size:

0.7 x 5.8 in.
0.7 x 2 in.
0.7 x 2 in.
0.7 x 2.3 in.
0.3 x 0.7 in.
0.4 x 1.0 in.
0.4 x 20 in.
0.4 x 10.2 in.
(19 x 47 mm) (19 x 52 mm) (19 x 52 mm) (19 x 58 mm) (7.5 x 17 mm) (11 x 25 mm) (11 x 500 mm) (19 x 260 mm)

Net/Shipping Weight:

4.2 oz. (120 g) 1.2 oz. (35 g)
16.6 oz. (470 g ) 6.0 oz. (170 g)

1.2 oz. (35 g)
6.0 oz. (170 g)

1.2 oz. (35 g)6.0 oz. (170 g)

0.1 oz. (3 g)
6.7 oz. (190 g)

0.1 oz. (6 g) 3.5 oz. (100 g) 2.8 oz. (80 g)
6.7 oz. (190 g) 13.1 oz. (317 g) 13.8 oz. (390 g)*With the 10-dB pad engaged, all SPL values for 1.0% THD can be raised 10 dB. Specifications measured with capsules attached to SE300B.

Accessories
Model:C 391 B

Included:
SA 40 Stand adapter
W 90 Foam windscreen

CK 91, 92, 93, and 94
CK 97-0 and CK97-C

CK 97-CVR

W 90 Foam windscreen
H 40/1 Universal clamp
for two capsules
H 41 Tie pin
W 97/1 Foam windscreen(For CK 97-0)
W 97 Foam windscreen(For CK 97-C)
W 97 Foam windscreen

CK 98

W 98 Windscreen

SE 300 B

SA 40 Stand adapter

Optional:
A 91 Swivel joint
MK 90/3 + H 98, Extension cable and stand adapter/ hanger
VR 91 15 in. (350 mm) extension tube
VR 92 47.2 in. (1.2 meter) extension tube with short gooseneck
W 95 Metal mesh and foam windscreen filter
Same as for C 391 B
For SE 300 B: B 18 E Battery supply
N 62 E AC Power supply

C 97-CVR + SE 300 B:
B 18 E Battery power supply
N 62 E AC Power supply
H 10 Stereo bar, H 38 Shock mountSA 38/H 38 Shock mount/stand adapter
ST 45 Table stand, ST 305 Heavy duty table standA 91 Swivel joint
VR 91 15 in. (350 mm) angled extension tube
See above

Architects and Engineers Specifications
The microphone shall be of the condenser type with a capsuleand powering module assembly no larger than 0.75 in. (19 mm) indiameter. For applications requiring field switchable patterns, thecapsule shall be demountable and attached by means of a half-turnbayonet action. (Threaded capsules shall not be allowed under thisspecification, because of inconvenience and the chance of crossthreading.) The microphone shall accept phantom powering overthe nominal ranges of 12 to 48 volts and the nominal output
impedance shall be equal to or less than 200 ohms at 1 kHz. The
microphone shall provide a switchable 10 dB pre-electronics padfor operation at high sound pressure levels, and a switchable low-frequency cut of 12 dB-per-octave shall be provided.
The polar pattern shall be (*), and on-axis frequency responseshall be (*). Microphone sensitivity shall be at least (*) millivolts
per pascal, and the self noise floor shall be no higher than (*)
dB-A. The 1.0 % THD operating level shall be (*) dB SPL.
(Additional for C 397-CVR)
The microphone capsule shall be separated from the powering/
output module by a thin gooseneck extension at least 20 in.
(500 mm) in length. The microphone shall be the AKG Acoustics
Model SE 300 B plus the (*) capsule.
*Insert data from specifications chart.

CK 97-0On-axis Frequency Response(measured at 1 meter)

Polar Response

CK 97-C

On-axis Frequency Response(measured at 1 meter)

Polar Response

CK 97-CVR

On-axis Frequency Response(measured at 1 meter)

Polar Response

CK98

On-axis Frequency Response(measured at 1 meter)

Polar Response

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 torepair 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 reasonablecare, the affixing of any attachment not provided with the product, loss of parts or connecting theproduct to any but the specified receptacles. This warranty is void unless service or repairs areperformed by an authorized service center. No responsibility is assumed for any special, incidental

AKG is constantly improving and modifying its products, therefore, specifications are subject to change without notice.

Graphical Dataor 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 ourservice 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 orlimitation 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.

Microphones · Headphones · Wireless Microphones · Wireless Headphones · Headsets · Electroacoustical Components
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 AudioWilberforce Road, London NW9 6AX/ENGLAND
Tel: (0181) 202 1199, Fax: (0181) 202 7076
Specifications subject to change without notice.

AKG ACOUSTICS, U.S.
914 Airpark Center Drive
Nashville, TN 37217, U.S.A.
Tel: (615) 620-3800, Fax: (615) 620-3875
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2-43-7, Uehara, Shibuya-ku, Tokyo 151-0064/JAPAN
Tel: (813) 3465-2211, Fax: (813) 3465-2214
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620 McCaffrey, St-Laurent, Quebec, H4T 1N1, CANADA
Tel: (514) 738-3000, Fax: (514) 737-5069
Internet: www.jam-ind.com/eriksonpro

DS-Blue Line Series