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HypercardioidAKG Acoustics C 747

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).

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 is also known as: C747, C 747.

Specifications

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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