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OmnidirectionalCardioidHypercardioidAKG Acoustics C 4000 B

Multi-Pattern Condenser Microphone

AKG’s C4000B is a large-diaphragm multipattern FET condenser with an electret capsule.

AKG C4000B CapsuleThe capsule has two 1-inch (25mm) diaphragms, in a shockmounted capsule assembly.

A switch on the microphone body allows selection of Cardioid, Hypercardioid, or Omni pickup patterns.

The microphone’s self-noise rating is very low, 8dBA.

A switchable 10-dB preattenuation pad allows the C 4000 B to be used for close-in miking of instruments producing extremely high sound pressure levels such as guitar amps etc. A switchable bass cut filter eliminates low-frequency noise.

The C4000B ships with an elastic shockmout (AKG p/n H 85), a flight case, and a foam windscreen.

Capsule photo credit: Markus Sauschlager

The AKG Acoustics C 4000 B is also known as: C4000B, C 4000 B.


Frequency Response - OmnidirectionalClick Graph to Compare!
C 4000 B Omnidirectional Frequency Response Chart
Frequency Response - CardioidClick Graph to Compare!
C 4000 B Cardioid Frequency Response Chart
Frequency Response - HypercardioidClick Graph to Compare!
C 4000 B Hypercardioid Frequency Response Chart
Pickup Patterns Pads & Filters
Omnidirectional (25 mV/Pa; 20 to 20,000 Hz)
Cardioid (25 mV/Pa; 20 to 20,000 Hz)
Hypercardioid (25 mV/Pa; 20 to 20,000 Hz)
  • Pad: -10 dB pad (Via Switch)
  • Filter: 12 dB/octave at 100 Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 25mm
200 Ohms (Low) Max SPL: 155 dB
Self-noise: 8.0 dB(A)
Weight Length Max Diameter Interface(s)
450g (15.87oz) 183mm (7.20'') 58mm (2.28'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 9 to 52 Vv

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