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All Power Posts

  • Friday, February 19, 2016
    image
    Pat Brown 02/19/16 11:37 AM,
      For professional audio people, the word “power” usually conjures up visions of racks of amplifiers are used to drive the loudspeakers in a sound system. But the amplifier and other system components must have a stable power source from which to operate.  Thus the issue of power distribution, all the way from Hoover Dam to your sound system, is vital. Some of the principles of audio signal distribution in sound systems are borrowed directly from utility companies, and so… View this post
    Filed in: AVFeatureBlogStudy HallAmplifierAVMeasurementPowerSignal

  • Tuesday, February 16, 2016
    audio power
    Mike Sokol 02/16/16 11:59 AM,
    I’ve been a professional audio engineer for 40-plus years and a musician for 10 years more than that, and during that time, I’ve witnessed hundreds of shock events on performance stages, recording studios, and even factory floors. A survey I ran on ProSoundWeb a few years ago revealed that 70 percent of the 3,000 musicians who responded had been shocked at least once on stage – some so severely that they were knocked unconscious. I’ve also witnessed dozens of ground-fault… View this post
    Filed in: AVLive SoundRecordingChurch SoundFeatureBlogStudy HallAVInterconnectPowerSignalSound ReinforcementStudio

  • Wednesday, January 27, 2016
    recording
    Jason Corey 01/27/16 04:34 PM,
    Editor’s Note: This is an excerpt from Audio Production and Critical Listening: Technical Ear Training, available from Focal Press. In the recording process, engineers regularly encounter technical issues that cause noises to be introduced or audio signals to be degraded inadvertently. To the careful listener, such events remove the illusion of transparent audio technology, revealing a recorded musical performance and reminding them that they are listening to a recording mediated by once invisible but now clearly apparent technology. It becomes… View this post
    Filed in: RecordingFeatureStudy HallAnalogDigitalDigital Audio WorkstationsInterconnectMixerPowerSignalStudio

  • 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 post
    Filed in: AVFeatureBlogStudy HallAmplifierAVEducationLoudspeakerPowerSignal

  • Friday, January 15, 2016
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    PSW Staff 01/15/16 07:30 AM,
    LynTec announces that Martin Dornfeld has joined the company as its new national sales manager. In this position, Dornfeld will work directly with new and existing LynTec customers to ensure the best possible power distribution and control solution for any installation. “As a result of the rapid growth the company experienced in the past year — with its move into a new and larger facility and the promotion of Dan Nguyen to vice president of engineering — it was essential… View this post
    Filed in: AVNewsAVBusinessManufacturerPower

  • 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 post
    Filed in: AVNewsProductAVPowerStage

  • Monday, January 11, 2016
    signal flow
    Barry McKinnon 01/11/16 07:06 AM,
    Editor’s Note: This article was featured in the very first issue of Live Sound International, currently celebrating its 25th anniversary. Published in January 1992, the article is understandably a bit dated, yet it still provides a wealth of valuable information on an important topic in sound reinforcement. Signal distribution can get unwieldy at times. One of the worst situations is the slow evolution of a sound reinforcement system. The growing demands on the system require the addition of components until… View this post
    Filed in: AVLive SoundFeatureBlogStudy HallAVInterconnectPowerSignalSound Reinforcement

  • 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 post
    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 post
    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 post
    Filed in: AVNewsAVInstallationManufacturerPowerProcessorSignalSound ReinforcementSystem



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