Introduction
Please read the following instructions before using the equipment.
The AKG CK 55 is a professional miniature clip-on microphone.
1 Precaution/Description
1.1 Precaution
Please ensure that the equipment to which your microphone will be connected complies with the safety regulations in force in your country and is fitted with a ground lead.
1.2 Unpacking
Check that the packaging contains all of the components shown below:
- 1 x CK 55 with attachment clip
- 1 x W 55 windscreen
Should anything be missing, please contact your AKG dealer.
1.3 Optional Accessories
- MK 9/10 microphone cable: A 10-meter (30-ft) 2-conductor shielded cable with male and female XLR connectors.
- MPA III L phantom power adapter.
1.4 Features
- Professional miniature clip-on microphone.
- Cardioid condenser transducer for natural sound.
- Frequency response designed for excellent intelligibility.
- Fastens on the user's clothing.
1.5 Brief Description
The CK 55 is a professional miniature condenser clip-on microphone with a cardioid polar pattern. Its small size makes the CK 55 an ideal choice for any situation requiring an inconspicuous microphone and maximum mobility for the user. The microphone's frequency response has been designed specifically for speech reproduction. An external windscreen supplied with the microphone reduces wind noise when used on an open-air stage. The microphone is fitted with a 1.6-meter (5 ft. 3 in.) cable with a locking mini XLR connector for use with the MPA III L phantom power adapter or AKG bodypack transmitters.
2 Interfacing
2.1 Introduction
The CK 55 is a condenser microphone and therefore requires a power supply.
⚠️ Important: Using any power supply other than those recommended by AKG may damage your microphone and will void the warranty.
2.2 Connecting via MPA III L
Refer to Figure 1.
- Push the mini XLR connector (1) on the microphone cable into the mini XLR socket (2) on the cable of the MPA III L (3) until it stops. The connector will lock automatically.
- To disconnect the cable, press the unlocking button on the mini XLR connector (1) and pull the connector (1) out of the socket.
Important: To avoid damaging the cable, never try to pull out the cable itself!
Figure 1: Connection diagram with optional MPA III L. This diagram illustrates the signal path: CK 55 microphone connects via Mini XLR to another Mini XLR input, which then connects to the MPA (likely an adapter or mixer input), which finally connects to a mixer with multiple microphone inputs (MIC 1, MIC 2, MIC 3).
- Connect the MPA III L (3) to a balanced XLR microphone input with phantom power.
- Switch the phantom power on.
(Refer to the instruction manual of the unit to which you connected your microphone.)
2.3 Connecting to a Bodypack Transmitter
Refer to the manual of your bodypack transmitter.
3 Use
3.1 Introduction
The principal benefit of a microphone attached to the user's clothing is that it allows the user to move about freely and keeps their hands free.
3.2 Operating Notes
Figure 2: Fixing the microphone on the clip. This illustration shows the microphone capsule being inserted into the supplied attachment clip.
- Insert the microphone into the fixing clamp on the supplied attachment clip.
- Attach the microphone to the talker's clothes, e.g., on the lapel, placing it as close as possible to the talker's mouth. (See Figure 3.)
Figure 3: Attaching the microphone near the user's mouth. This diagram shows a person's head and shoulders, with an arrow indicating the optimal placement of the microphone close to the mouth, suggesting a minimum distance.
Note: The smaller the distance between the microphone and the sound source, the higher the usable gain before feedback.
- Ask the user not to turn their head more than 30 degrees to the left or right while talking. (Refer to Figure 4.) Talking outside the pickup angle of the microphone will reduce the microphone's output level considerably.
Figure 4: Microphone pickup angle. This illustration depicts a person's head and shoulders, with a cone shape indicating the directional pickup pattern of the microphone.
4 Cleaning
To clean the microphone case, use a soft cloth moistened with water.
5 Specifications
Frequency Response Graph: The graph shows frequency (in Hertz, from 20 Hz to 20 kHz) on the x-axis and amplitude (in dB, from -20 dB to +10 dB) on the y-axis. The curve illustrates the microphone's sensitivity across different frequencies, showing a relatively flat response in the mid-range important for speech, with some variations at lower and higher frequencies.
| Type: | pre-polarized condenser microphone |
|---|---|
| Polar pattern: | cardioid |
| Frequency range: | 150 Hz to 18,000 Hz |
| Sensitivity at 1 kHz: | 8.8 mV/Pa (-41 dBV re 1 V/Pa) |
| Electrical impedance at 1 kHz: | 200 Ω |
| Power requirement: | 1.5 to 10 VDC via MPA III L phantom adapter or AKG WMS bodypack transmitters |
| Cable length: | 1.6 m (5 ft. 3 in.) |
| Connector: | 3-pin mini XLR |
| Finish: | matte black |
| Size: | 8 x 22 mm (0.3 x 0.9 in.) |
| Net/shipping weight: | 2.5 g (0.09 oz. w/o cable) / 115 g (4 oz.) |
This product conforms to EN 50 082-1 provided it is connected to equipment with a CE mark.
Contact Information
AKG Acoustics GmbH
Lemböckgasse 21–25, P.O.B. 158, A-1230 Vienna/AUSTRIA
Tel: (43 1) 86 654-0*, Fax: (43 1) 86 654-7516
http://www.akg.com, e-mail: sales@akg.com
AKG Acoustics GmbH
Bodenseestraße 228, D-81243 München/GERMANY
Tel: (089) 87 16-0, Fax: (089) 87 16-200
http://www.akg-acoustics.de, e-mail: info@akg-acoustics.de
AKG ACOUSTICS, U.S.
914 Airpark Center Drive, Nashville, TN 37217, U.S.A.
Tel: (615) 620-3800, Fax: (615) 620-3875
http://www.akgusa.com, e-mail: akgusa@harman.com
For other products and distributors worldwide visit our website at http://www.akg.com
Printed in China.
