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HypercardioidAKG Acoustics C 747 (C 747 V11)

Hypercardioid Condenser Microphone

The AKG C 747 is a miniature (5.4-inch) hypercardioid shotgun microphone with an electret condenser element.

The mic is remarkably small — just 9mm in diameter, less than half the diameter of its own XLR jack. Although it uses an interference tube and is billed in some contexts as a “shotgun” microphone, its nominal hypercardioid pattern provides only 5-10dB of rear rejection at most frequencies. Attenuation at ±90° is approximately 8dB, not significantly better than most Cardioid mics (which attenuate 6dB at 90°).

The mic’s self-noise rating is 21dB, with a max SPL of 133dB.

A switch on the mic body provides a high-pass filter (-12dB/octave @ 150Hz).

As of 2017, the C747 has undergone some small changes and goes by the name C747 V11.


As it is more and more used in conference applications, we carefully redesigned the C 747 to better cope with some specific installed sound issues. The new C 747 V11 will have an integrated RFi shield to block out unwanted interference by mobile phones, wireless mics and the like. Also we have fine tuned the frequency response to give especially the spoken word an outstanding presence, without changing the flavour of the classic C 747 sound.

It includes the H 47 isolation mount, the W 70 windscreen, the MSH 70 “Short gooseneck,” SA 47 stand adapter, SA 80 clamp, and SHZ screw link.

The AKG Acoustics C 747 (C 747 V11) is also known as: C 747, C747, C747 V11, C 747 V11, C747V11.


Pickup Patterns Pads & Filters
Hypercardioid (8.5 mV/Pa; 30 - 18,000 Hz)
  • Filter: HPF: -12 dB/oct @ 150Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
400 Ohms (Low) Max SPL: 133 dB
Self-noise: 21.0 dB(A)
Weight Length Max Diameter Interface(s)
25g (0.88oz) 137mm (5.39'') 9mm (0.35'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 9 to 52 V phantom power tv

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