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Articles Tagged Power

  • Friday, January 22, 2016
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    Pat Brown 01/22/16 06:34 AM,
      Here’s a handy quiz for checking your knowledge about audio power. Rather than submit you to the typical “right or wrong” questions with exact numerical answers, I’ve elected to provide a different means of self-evaluation. I can tell you up front that the answer to every question is “It depends!” But what’s really being asked is “WHAT does it depend on?” At first glance it may seem that the question is not even related to audio. Don’t be fooled.… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVEducationLoudspeakerPowerSignal

  • Tuesday, January 19, 2016
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    Jim Brown 01/19/16 03:11 PM,
    Courtesy of The Rane Library.   This article is provided by Rane as part of the Rane Library and originally appeared in the Syn-Aud-Con Newsletter, vol. 31, nos. 2 & 3, 2003 In his landmark 1994 AES paper, Neil Muncy described a common equipment design error that allows current flowing on the shields of audio wiring to enter equipment and cause audible interference. He called this design error “the Pin 1 problem,” because it was an improper connection of the… View this story
    Filed in: AVFeatureStudy HallAVEngineerInterconnectSignalSystemTechnician

  • Thursday, January 14, 2016
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    PSW Staff 01/14/16 11:10 AM,
    Hosa Technology introduces two new series of power cords, designed specifically for gear outfitted with Neutrik powerCON connectors. When properly installed, these connectors forge a secure connection that prevents accidental disconnects due to tripping over cables or bumping of equipment. PWN-200 Series Power Cords are designed to carry power from a normal wall outlet to a powerCON-equipped device. For those using power distribution boxes equipped with powerCON outputs, PCN-200 Series Power Cords feature powerCON connectors at both ends and are… View this story
    Filed in: AVNewsProductAVPowerStage

  • Wednesday, December 09, 2015
    qsc
    Bob Lee 12/09/15 12:17 PM,
    Editor’s Note: This article was originally published in the March/April 2000 issue of Live Sound International, and it still provides a wealth of valuable information on this important topic. Q.) What does a power amplifier do, anyway? A.) In a nutshell, a power amp takes your audio signal and provides both voltage gain and current gain to drive loudspeakers. The voltage gain is necessary because line-level audio runs around a volt, peaking at maybe 8 to 12V, and loudspeakers need… View this story
    Filed in: AVLive SoundFeatureBlogStudy HallAmplifierAVMeasurementPowerSignalSound Reinforcement

  • Friday, October 23, 2015
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    Pat Brown 10/23/15 11:56 AM,
      One of the most confusing subjects in audio? Loudspeaker power ratings. It’s generally accepted that a large loudspeaker power rating is a sign of quality and something to be desired. And it’s the performance metric that probably has the greatest influence on the consumer’s buying decision. But a closer look reveals that power rating is far less significant than other metrics regarding the performance of the loudspeaker. The term “power rating” requires further explanation to avoid misunderstanding. It’s tempting… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVLoudspeakerMeasurementPowerSound Reinforcement

  • Wednesday, October 21, 2015
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    PSW Staff 10/21/15 08:48 AM,
    The Garland Theater in Spokane, Washington opened its doors in 1945. In 1999, Katherine Fritchie purchased the theater, realizing that the treasured venue needed some serious upgrades if it was going to continue to be a vital part of the community. Dedicated to revitalizing theater while maintaining its beloved history, Fritchie turned to local integration firm Hoffman Pro Systems to design and install a new AV system protected, powered and operated by a Furman SmartSequencer. “I have been working with… View this story
    Filed in: AVNewsAVInstallationManufacturerPowerProcessorSignalSound ReinforcementSystem

  • Tuesday, October 20, 2015
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    PSW Staff 10/20/15 09:43 AM,
    LynTec announces the new Input/Output-Relay (I/O-R) board for the Remote Power Controller (RPC) platform. The I/O-R board expands RPC control options to include control for high-current contactors and UPS outlets, giving users more flexibility to connect and control complex systems on a single control platform, instead of using multiple control systems. This capability dramatically simplifies control setup and equipment operation. “High-current contactor control and outlet control are important to system designers as they add more UPS protection to their systems… View this story
    Filed in: AVNewsProductAVInstallationManufacturerPower

  • Monday, October 19, 2015
    power amplifiers
    Steve Lyle 10/19/15 05:54 AM,
    A power amplifier is a device for making a larger, more powerful signal out of a small, weak signal. It was on February 18, 1908 that Lee DeForest was granted U.S. Patent No. 879,532 titled “space telegraphy,” but in actuality, the patent was for a vacuum tube triode amplifier that DeForest called the “audion amplifier.” For the first time it was possible to amplify signals. The first amps were developed to support radio. Later, other applications were developed. All electronics… View this story
    Filed in: Church SoundFeatureAmplifierAnalogDigitalPowerSound Reinforcement

  • Friday, October 02, 2015
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    PSW Staff 10/02/15 08:49 AM,
    LynTec announces the release of a new white paper titled “New Federal Distribution Transformer Regulations Coming in 2016.” Written by Alan Tschirner, vice president and general manager of LynTec, the document highlights the changes being made by the Department of Energy (DOE) to existing regulations on distribution transformers, and how those changes will make business more costly for manufacturers and audio professionals alike. Audio consultants regularly use distribution transformers to isolate installed sound systems from the rest of a building’s… View this story
    Filed in: AVNewsWhite PaperAVBusinessEngineerPowerTechnician

  • Thursday, October 01, 2015
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    PSW Staff 10/01/15 02:02 PM,
    Middle Atlantic Products announces its support of InfoComm’s AV Month with an extensive education program designed to train on AV technologies, while delivering 7 InfoComm CTS, BICSI, and AIA credits in 31 days.  Every week during AV Month, Middle Atlantic will be offering an industry-certified webinar from Joe Cornwall, Technology Evangelist, 2014 InfoComm Educator of the Year, and Full Time InfoComm Faculty Member.  The webinars cover cutting-edge technology and trends that can be applied to upcoming projects.  The weekly webinars… View this story
    Filed in: AVNewsAVEducationEngineerManufacturerSystemTechnician



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