Description

Oktava MK-105 Large Diaphragm Condenser Microphone Overview:

The MK-105 retains the authorative lower midrange power Oktava is known for but adds some top end sparkle. The combination of the new capsule, headbasket and transformerless circuit produces a more transparent or hi-fi sound when compared to the classic transformer output coloration and soft top end of the MK-219/319.

The Capsule
The large 27.5 mm capsule with precision-drilled backplate holes in conjunction with the headbasket design produces a gentle +4dB rise from 4 kHz to 12 kHz to lend a touch of presence and air to vocal or instrument sources.

The Headbasket
Inside the headbasket, the capsule is mounted on a conical diffuser designed to reduce standing waves and smooth the capsule / headbasket system frequency response.

The Circuit
The MK-105 employs the highly regarded transformerless circuit found in one of the most widely used mics in existence the MK-102 (over 90,000 in use worldwide) to deliver the alluring sound of direct phantom power applied to a large diaphragm capsule.

The Sound
On-axis – A carefully crafted double peak high frequency response provides subtle emphasis of both presence and air frequencies while suppressing the sibilance range. This results in a more modern or Hi-Fi sound when compared to the classic midrange-rich 219/319 sound but without the harsh sibilance found in many modern mics. Off-axis – Frequency response at 90 degrees resembles 0 degree response but attenuated a nominal l0dB. 180 degree rejection increases to 16dB below 2kHz but the top end over 4kHz stays just 8-10 dB or so below the on-axis response. This means the MK-105 has a very natural off-axis response out to 90 degrees with a pleasingly bright room ambience. The MK-105 excels where the recordist wants a large diaphragm cardioid mic with a musically useful proximity effect, a sparkling top end free from sibilance and a bright room ambience sound.

Specifications:

• Frequency Response: 20-20000 Hz
• Output sensitivity: 16 mV/Pa
• Max SPL: 120 dB for 0.5% THD
• Self Noise (DIN): <18 dBa
• Output impedance: 150 Ohm
• Powering: 48 V
• The difference in free field sensitivity between 0 and 90: 4 db
• The difference in free field sensitivity between 0 and 180: 18 db
• Weight: 380 g
• Length / max diameter: 160 / 55 mm