IEC 61938 PDF

IEC Standard | Audio, video and audiovisual systems – Interconnections and matching values – Preferred matching values of. However it might be better to be aware of such defects rather than oblivious of them. Parallel powering is covered by section of the. IEC standards. IEC Multimedia systems – Guide to the recommended characteristics of analogue interfaces to achieve interoperability.

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It uses a two-wire system, unlike the balanced XLR three-wire system. The two cannot be interchanged. From Wikipedia, the free encyclopedia. The International Electrotechnical Commission Standards Committee’s “Multimedia systems – Guide to the recommended characteristics of analogue interfaces to achieve interoperability” IEC Add to Alert PDF. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

Everything You Need to Know About Microphone Phantom Power – Acoustic Guitar

Some condenser microphones can be powered with a 1. A keyed variation of the usual XLR connectorthe XLD connectormay be used to prevent accidental interchange of analog and digital devices. Subscription pricing is determined by: Retrieved from ” https: Phantom power provides a source of electricity to some microphones, usually iecc microphones.

It is not a standard for defining performance characteristics. Many modern condenser microphones use this type of mixer-provided phantom power.


In some cases, 16938 can have fixed charge materials produced in the manufacturing process. Please first log in with a verified email before subscribing to alerts. This is in marked contrast to another, slightly earlier method of powering known as “parallel powering” or “T-powering” from the German term Tonaderspeisungin which DC was overlaid directly onto the signal in differential mode.

A oec source of confusion for guitarists is that some microphones use different powering schemes.

Connecting a conventional microphone to an input that had parallel powering enabled could very well damage the microphone. Phantom power is sometimes used by workers in avionics to describe the DC bias voltage used to power aviation microphones, which use a lower voltage than professional audio microphones.

What is this phantom power and why is it necessary? Phantom power is a method of sending DC voltage 48V from a mixer, through a balanced cable, to a condenser microphone.

Phantom Power | Radio Design Labs

Sound for Film and Television. This article is provided by Behind The Mixer. One such application in the telephone system was to provide a DC signaling path around transformer connected amplifiers in analogue line transmission systems.

If there is a fault in the cable, phantom power may damage some mics by applying a voltage across the output of the microphone.

Phantom power supplies are often built into mixing consolesmicrophone preamplifiers and similar equipment. A good guitar tech can clear up any confusion and help you set up such a system correctly. As a guitarist, you may also encounter some less common scenarios related to phantom power.


In commercial dual-source systems with onboard electronics, such as the L. This capsule stores an electrical charge. Recommendations for interfaces for devices used in vehicles and for analog video interfaces for radio or similar devices are not provided.

Eargle’s The Microphone Book: Imagine ic as uec traffic along the same road. It is often used for powering electret microphoneswhich will not function without power.

Digital microphones complying with the AES 42 standard may be provided with phantom power at 10 volts, impressed on both audio leads and ground.

For other uses, see Phantom Power disambiguation. Most modern mixers provide 48 61983, which has become so common that many people assume that phantom power automatically means 48 volts.

Church Sound: The Basics Of Phantom Power

Phantom powering ice cause equipment malfunction or even damage if used with cables or adapters that connect one side of the input to ground, or if certain equipment other than microphones is connected to it.

Stay up-to-date, get the latest pro audio news, products and resources each month with Live Sound. To use equipment requiring it with these amplifiers, a separate power supply must be inserted into the line.