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Microphone Powering

Microphone power selector switch on Nagra recorder.The topic for this article is mic powering, including Nagra "red dotting" and other basics pertaining to "phantom" powering of mics. If you are already intimately familiar with such terms as: T-powering; A-B powering; phantom powering; electret condenser; QPM 3-5; QPAU-T; and phasing cables -- then give yourself an A and skip on to another article in this website. But if any of this talk strikes you as resembling a call sheet from a sci-fi epic, then this primer is for you.

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This website is intended as an educational resource for those interested in video and film production. Our specialty is Production Sound Recording (location sound), although we are also versed in other aspects of production, from pre to post.


Our mission is not to sell you equipment, but to help you to master the complex craft of location audio recording for video and film.

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