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OmnidirectionalCardioidHypercardioidBidirectionalAKG Acoustics C 414 EB P48

Multi-Pattern Condenser Microphone

The C414 EB P48 was a variation of the C414EB. Both were multipattern FET mics built around AKG’s CK-12 capsule, but the P48 version was released 4 years after the EB, and differed in the following ways:

  • While the C414EB could run on as little as 9VDC phantom power, and used a DC-DC converter to generate the capsule’s required polarization voltage, the C414 EB P48 required a full 48VDC phantom power, and contained no DC-DC converter.
  • Early production runs of the C414EB used brass-ring CK-12 capsules. Although we have seen reports of some C414EB-P48 with brass CK-12s, we believe most of the P48 mics had nylon CK-12s.
  • The P48 had higher sensitivity — it was rated at 9mV/Pa, as compared to the EB (6 mV/Pa).
  • The P48 had slightly higher impedance, at 200Ω.
  • The P48 was available in black; the C414EB was available in silver.

Both mics offered a 3-way pad (0, -10, -20dB) and a 3-way high-pass filter (flat, -12dB/octave @ 75 or 150Hz), and four polar patterns: Cardioid, Omni, Hypercardioid, Figure of 8. All these features were selectable via switches built into the microphone body.

Like the original C 414 EB, the C414EB P48 shipped with a stand adapter (AKG p/n SA 18/3), a foam windscreen (p/n W 26), and a plot of the mic’s frequency-response curve.

Permalink: AKG Acoustics C-414-EB-P48

The mic was released in 1980.


Frequency Response - OmnidirectionalClick Graph to Compare!
C 414 EB P48 Omnidirectional Frequency Response Chart
Frequency Response - CardioidClick Graph to Compare!
C 414 EB P48 Cardioid Frequency Response Chart
Frequency Response - HypercardioidClick Graph to Compare!
C 414 EB P48 Hypercardioid Frequency Response Chart
Frequency Response - BidirectionalClick Graph to Compare!
C 414 EB P48 Bidirectional Frequency Response Chart
Pickup Patterns Pads & Filters
Omnidirectional (9 mV/Pa; 30 - 20,000 Hz)
Cardioid (9 mV/Pa; 30 - 20,000 Hz)
Hypercardioid (9 mV/Pa; 30 - 20,000 Hz)
Bidirectional (9 mV/Pa; 30 - 20,000 Hz)
  • Pad: -10dB (Via Switch)
  • Pad: -20dB (Via Switch)
  • Filter: HPF: -12 dB/octave @ 75Hz (Via Switch)
  • Filter: HPF: -12dB/octave @ 150Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
200 Ohms (Low) Max SPL: 150 dB
Self-noise: 18.0 dB(A)
Weight Length Max Diameter Interface(s)
360g (12.70oz) 141mm (5.55'') n/a
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48v

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