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CardioidOktava MK-103

Cardioid Pencil Condenser Microphone

The Oktava MK-103 combines the MK-011/MK-103 medium diaphragm capsule and MK-012 transformerless head amplifier.

The 103 was developed as a middle ground between the fast transient catching small diaphragm models and the flattering character of the large diaphragm models.

Although the Cardioid polar pattern widens toward omnidirectional below 100Hz, off-axis and rear rejection is generally very good.

The mic’s published frequency response is nominally flat from 35Hz–4kHz, followed by a broad, subtle presence boost (+3dB) from 5–7kHz. The HF -3dB point is above 20kHz.

The MK-103 kit includes the MK-012 head amplifier, MK-103 capsule head, inline -10dB pad module, and a metal mic clip, packed into a padded wooden jeweler’s case.

The Oktava MK-103 is also known as: MK103.

The mic was released in 2006.


Pickup Patterns Pads & Filters
Cardioid (7 mV/Pa; 20 - 20,000 Hz)
  • Pad: -10 dB (Detachable)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 19.5mm
300 Ohms (Low) Max SPL: 140 dB
Self-noise: 18.0 dB(A)
Weight Length Max Diameter Interface(s)
n/a n/a 23mm (0.91'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48v

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