AKG Acoustics

AKG Blue Line Series Microphone Kit, Includes SE300B Powering Output Module and CK91 Cardioid Capsule

SKU: AKZC391B MFR: 2442Z00010
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About the AKG Acoustics AKG Blue Line Series Mic

The C 391 B is a complete system that can be adapted in a very practical and low-cost manner to match the ever-changing requirements of the recording, broadcasting, sound reinforcement and film industries. The sound engineer can choose from a range of microphone modules that can be mixed and matched to create customized studio-quality microphones for every conceivable application.

The AKG SE-300B is a power supply and signal output stage for AKG Blue Line series microphone capsules. The power supply is designed as the back-bone of the Blue Line series, allowing a variety of interchangeable capsules to be used as applications change. The SE-300B is a lightweight, rugged unit with an output stage that preserves the integrity of the audio signal while providing a very low noise floor and high output gain. A preattenuation switch provides extra headroom and eliminates distortion caused by overload when reproducing excessively loud signals. A low frequency roll-off switch reduces low frequency noise caused by wind, ambiance, bad grounds etc. The SE-300B is powered with an external 9 to 52 V phantom power source.

The AKG CK91 is a cardioid capsule with signal characteristics that allow the microphone to be used in a variety of applications. The miniature capsule features a flat wide frequency response of 20Hz to 20kHz allowing smooth accurate signal reproduction without coloration. The cardioid polar pattern is effective in eliminating noise and ambiance at the off-axis sections of the capsule. The result minimizes feed-back and allows the CK91 to be used to spot capture instruments and vocals for sound reinforcement and crucial recording. The CK91 is powered with the AKG SE-300B power supply.

AKG Acoustics AKG Blue Line Series Mic Includes

  • AKG SE-300B Power Supply
  • CK91 Cardioid Microphone Capsule
  • SA 40 Stand Adapter
  • W 90 Foam Windscreen
  • AKG Warranty

AKG Acoustics AKG Blue Line Series Mic Features

  • Robust design
  • Minimal self noise
  • Low power consumption
  • Extremely reliable
  • Low-impedance capsule connection
  • Works without any problems up to 60deg.C and 95% relative humidity
  • Integrated, switchable 10 dB attenuation of gain
  • Extremely durable
  • Transformerless output stage
  • Can by powered by any phantom powering device that complies with IEC 61938
  • Low distortion, even at high sound pressure levels
  • Integrated bass filter with onset at approx. 100 Hz

AKG Acoustics AKG Blue Line Series Mic Specifications

Electrical working principle Condenser microphone, self-polarized
Acoustic working principle Pressure gradient receiver
Polar pattern Cardioid
Frequency range 20 to 20,000 Hz ± 2 dB from nominal frequency curve
Field open loop gain (sensitivity) 10 mV/Pa - 40 dBV in re. to 1V/Pa (at 100 Hz)
Electrical impedance = 200 Ohms
Recommended load impedance = 1000 Ohms
Equivalent sound pressure level 17 dB-A (acc. to IEC 60268-4 (A-weighted))
S/N ratio in re. to 1 Pa (A-weighted) 77 dB
Sound pressure limit 80 Pa (132 dB) for 1000 Hz
Operating Temperature: -20deg.C to +60deg.C
Relative humidity 99% (+20deg.C), 95% (+60deg.C)
Supply voltage 9 to 52 V phantom power acc. to IEC 61938
Current consumption = 2 mA
Connector Type XLR-3 acc. to IEC
Housing material Brass
Housing surface Matte Gray
External dimensions 19x147mm (0.75x5.79")
Weight Approx. 115g (4.06oz)
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