Decades of experience in the making of large membrane stereo- and multi-channel condenser microphones gave Nevaton the expertise to create large dual diaphragm capsules which can be used for critical stereo and multi-channel recordings, which before have been mainly realised with small condenser mics.

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NEVATON ORTF– Large Dual-Diaphragm microphone for recordings with the ORTF stereo-system – CURRENTLY UNDER DEVELOPMENT

The Nevaton ORTF is a Stereo Condenser Microphone designed for highly professional ORTF stereo-recordings.

The Nevaton ORTF features large dual-diaphragm capsules and transformerless ‘Class A’ electronics.
The Nevaton ORTF can be used as a main microphone for recording orchestras, chamber ensembles, jazz-concerts, etc. and is also well suited for applications in radio and television broadcasting.

The microphone has an excellent transient response, very low self-noise of only 4 dBA (in cardioid mode) and can transmit sound pressure levels up to 138dB without distortion.
The two large 33mm ultra-thin gold coated diaphragms are made of 3-micron polyethylene-terephtalate film and give the Nevaton ORTF a beautiful and transparent sound. All capsule components have passed a special artificial ageing process to guarantee long-term stability.
The internal construction is elastically mounted to attenuate vibrations and reduce handling noise. Additionally, the capsules are fixed on special dampers to further reduce mechanical noise.

A small LED on the microphone body indicates the presence of 48V phantom power. All input transistors pass a special selection process to guarantee minimal self-noise. The microphone body is made of brass with a dark grey non-reflective paint finish on an epoxy base. A 3-layer metallic grille effectively protects the transducers from electrical and atmospheric interference and contamination from microscopic dust particles. A gold-plated 5-pin XLR-connector in the base mates with the breakout cable (dual 3-pin XLR connectors). The Nevaton ORTF comes with an output cable in a fine hardwood box.


NEVATON ORTF – Technical Data


Capsule diameter

33 mm

Directional pattern


20 – 20.000 Hz

Free Field Sensitivity at 1000 Hz and 1000 Ω

not less than 20 mV/Pa

Equivalent SPL DIN/IEC 651