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Articles Tagged Electrical

  • Tuesday, October 11, 2016
    Mike Sokol 10/11/16 11:18 AM,
    Provided by the No Shock Zone.   Most musicians really don’t want to learn about electrical engineering, or even how basic electricity works. Everyone, however, should learn how to test for and avoid electric shocks on stage. Guitar amps and mixing boards as wired from the factory are inherently safe, but they can become silent-but-deadly killers if plugged into an extension cord or wall outlet that’s improperly grounded. This is because guitars are held in moist hands while wet lips… View this story
    Filed in: Church SoundFeatureBlogStudy HallAmplifierEducationInstallationInterconnectMicrophonePowerSignalSound ReinforcementStageSystemTechnician

  • Friday, August 12, 2016
    PSW Staff 08/12/16 09:06 AM,
    Switchcraft announce an addition to our HPC series of high current connectors for loudspeaker and power applications.  All HPC connectors are fully compatible with Neutrik Speakon connectors.  This updated 4 pole version (HPCC4FT) has the turn to lock latching mechanism that has become standard in these types of connectors. The existing version (HPCC4F) has an XLR-style push lock. In addition to loudspeaker applications,  HPC connectors are touch-proof, rated for 30Amps, and have been used for AC power applications. Switchcraft View this story
    Filed in: AVNewsProductAVInstallationInterconnectManufacturerPower

  • Tuesday, July 26, 2016
    PSW Staff 07/26/16 10:20 AM,
    LynTec announces the addition of Telnet control to the company’s complete line of RPC series power control panels. Telnet expands RPC’s interface options, strengthening the lineup’s onboard monitoring and control capabilities from any remote location. “Installations are moving toward a shared Ethernet backbone, and we added Telnet to the TCP/IP protocol to meet the need for simple monitoring and control over the network,” says Mark Bishop, president of LynTec. “As a manufacturer, we have the most choices for control of… View this story
    Filed in: AVNewsProductAVInstallationPowerSystem

  • Monday, June 27, 2016
    Craig Leerman 06/27/16 06:11 AM,
    Festival season, in particular, means dealing with portable generators for show power. At performance venues, we hardly give power a second thought, simply handing our tails or feeder to the house electrician to tie into the “company switch.” Then we check the voltages at the distro end with a meter to make sure everything is connected properly, and that’s usually it – no more thinking about the power until it’s time to disconnect at the end of the gig. The… View this story
    Filed in: ProductionFeatureProductStudy HallProductionAudioPowerSound Reinforcement

  • Friday, June 10, 2016
    PSW Staff 06/10/16 08:32 AM,
    Middle Atlantic Products announces its new series of premium online UPS backup power systems, broadening its range of UPS products to address more mission-critical, sensitive, and high-end systems needing backup power protection. Ideal for applications in commercial AV, security, or residential AV, the latest series isolates and conditions output power through a double conversion process, offering a clean power solution. Systems are available in three models: 1500VA, 2200VA, and 3000VA, and feature long runtime in a 2RU form factor. This… View this story
    Filed in: AVNewsProductAVInstallationPowerSystem

  • Monday, June 06, 2016
    Mike Sokol 06/06/16 10:18 AM,
    Provided by Live Sound Advice.   No, it’s not the name of an insurance company or a European sports car—GFCI is an abbreviation/acronym for Ground Fault Circuit Interrupter. They’ve been required in many localities for electrical outlets located near sinks or the outside of residences since the early 1970s. The two types of GFCIs you’ll encounter are either built into the power outlet itself (Figure 1, left) or inside the circuit breaker at the power panel (Figure 1, right). Both… View this story
    Filed in: AVFeatureStudy HallAVInstallationPower

  • Friday, April 29, 2016
    PSW Staff 04/29/16 03:21 PM,
    Editor’s Note: Here’s an interesting thread from the PSW Live Audio Board (LAB) forums. It’s lightly edited for grammar and formatting. Enjoy. Posted by Jay Last weekend I refused to let a band roadie (did the setup but didn’t mix or anything) use their own stage drops at the front of the stage. One of the drops I did approve was a Hubbell 4-plex with the low profile plastic box. One I rejected was the same but broken and held… View this story
    Filed in: Live SoundFeatureForumStudy HallAVInterconnectPowerSound ReinforcementStage

  • Wednesday, March 16, 2016
    prosoundweb ac power
    Mike Sokol 03/16/16 06:54 PM,
    Provided by Live Sound Advice.   “You keep using that word. I do not think it means what you think it means.”—Inigo Montoya, The Princess Bride The Twitterverse was hopping last night with news of Canadian singer Grimes being “electrocuted” during a concert in Dublin. (Go here and #Grimes on Twitter.) While she was shocked on stage, she definitely wasn’t electrocuted multiple times. That’s because the word “electrocution” refers to death by electric shock. If she was indeed killed by… View this story
    Filed in: AVLive SoundChurch SoundFeatureBlogStudy HallAVInterconnectPowerSignalSound ReinforcementStage

  • 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 story
    Filed in: AVLive SoundRecordingChurch SoundFeatureBlogStudy HallAVInterconnectPowerSignalSound ReinforcementStudio

  • Tuesday, January 19, 2016
    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

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