Sennheiser MKH20-P48
Omni Condenser Microphone


The MKH 20 is usually used as a main microphone for orchestras and solo instruments, and picks up the natural acoustics of the room, though it does have a much wider range of applications as omni-directional microphones do not suffer from ‘proximity effect.

The sophisticated MKH Series microphones incorporate Sennheiser technology into condenser mics of superlative quality. Used by recording studios, film and television production companies, and broadcast professionals all over, the MKH line provides a flexible array of polar patterns and sizes, all optimized for totally transparent, "colorless" sound reproduction.  RF condenser microphones constitute a unique, sophisticated class of condenser microphones. They fulfil the very highest demands made on sound quality and versatility, and are renowned for their high quality, highly accurate sound reproduction, ruggedness, all-weather operation, wide frequency response and extremely low inherent self-noise.  RF condenser microphones use a comparatively low RF voltage, generated by a low-noise oscillator. 
It is modulated by the capacitance changes produced by the sound waves moving the capsule diaphragm.  As bipolar transistors produce less random noise than FETs, electrical equalization technology can be included to increase the microphone’s dynamic range and linearise its frequency response. As a result, an excellent low frequency response can be achieved even with small capsules.  In addition, small capsules achieve a considerably better high frequency response than large capsules.  A further advantage of this process is that an ungrounded audio frequency signal is available although the capsule is grounded. This is why all RF condenser microphones possess a genuine fully floating, balanced output without having to use an audio frequency transformer.  48-Volt phantom power is required.

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