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Articles Tagged Cable

  • Thursday, August 18, 2016
    microphone cables
    PSW Staff 08/18/16 01:12 PM,
    What is impedance? Impedance is the AC (alternating current) version of the DC (direct current) term resistance, which is the opposition to electron current flow in a circuit and is expressed in ohms. Impedance (often abbreviated as “Z”) includes capactive reactance and inductive reactance in addition to simple DC resistance. Reactance depends upon the frequency of the signal flowing in the circuit. Capactive reactance increases as frequency decreases: inductive reactance increases as frequency increases. Because of this frequency dependence, impedance… View this story
    Filed in: AVFeatureBlogStudy HallAVInterconnectMicrophoneSignal

  • Friday, August 12, 2016
    image
    Gary Zandstra 08/12/16 06:31 AM,
    This article is provided by Gary Zandstra.com.   Operating the sound system from the mix position during a Sunday worship service, “it” all began when the first note from our grand piano was distorted. Hmm… We’d checked the piano channel and sound prior to the service, and all was fine. My first reaction to the distortion now being produced was to reduce the gain on that console channel, thinking perhaps the piano player was “nailing” the keys very hard. Yet… View this story
    Filed in: Church SoundFeatureStudy HallInterconnectSound ReinforcementStage

  • Friday, May 01, 2015
    image
    Bruce Bartlett 05/01/15 02:30 PM,
    You patch in a piece of audio equipment, and there it is: HUM! This annoying sound is a common occurrence in sound systems. Hum is an unwanted 60 Hz tone—50 Hz in Europe—maybe with harmonics. If the harmonics are especially strong, the hum becomes an edgy buzz. Your sound system also might be plagued by RFI (Radio Frequency Interference). It’s heard as buzzing, clicks, radio programs, or “hash” in the audio signal. RFI is caused by CB transmitters, computers, lightning,… View this story
    Filed in: RecordingFeaturePollProductionAudioAnalogDigitalInstallationInterconnectMixerPowerSignalStudioSystem

  • Tuesday, November 25, 2014
    image
    Ted Morgan 11/25/14 02:35 PM,
    It’s a Monday afternoon and I get a phone call from a local production company to work a press event the following day at a local race track (local being an hour and half away). I accept the gig and the next day hop on my bike (the motor-driven type) and go to the track, and specifically, the large circus-type tent where the event is being staged. No equipment truck in sight, of course. A quick phone call to my… View this story
    Filed in: Live SoundFeatureOpinionPollProductionAudioConsolesInterconnectLoudspeakerMicrophoneSignalSound ReinforcementSystemTechnician

  • Wednesday, March 12, 2014
    image
    Rob Stam 03/12/14 04:50 PM,
    Over the years, in my many encounters with church building committees, there’s often a common theme: The desire to build a room that can be utilized for a multitude of functions, including worship, special events, dinners, receptions…the list goes on. It’s a discussion filled with looking toward the future, and one that necessitates compromise in order to accommodate any number of issues. For example, wouldn’t it have been nice—25 years ago—if the building committee had considered that there might be… View this story
    Filed in: Church SoundFeatureBlogStudy HallProductionAudioConsolesInstallationInterconnectMicrophoneSignalStage

  • Wednesday, December 11, 2013
    cable
    PSW Staff 12/11/13 09:38 AM,
    Provided by Sweetwater.   Q: Despite my experience within the A/V industry (I wont say how long it’s been), I’ve never quite gotten the hang of everything. Admittedly, this is because I’m a bit more of a video expert, but I’d like to remedy that. So I wanted to get clarification on a few things. The largest (and perhaps most important) being, how do I choose the correct gauge of wire for loudspeakers? A: Selection of the appropriate wire gauge… View this story
    Filed in: AVFeatureBlogStudy HallAVInstallationInterconnectSignalSystemTechnician

  • Tuesday, October 01, 2013
    differential inputs
    Pat Brown 10/01/13 03:31 AM,
    Take a free lesson in a SynAudCon web-based training course   Mechanical analogies can be very useful for under standing electrical concepts. Electricity, that unseen force that powers much of the world around us, is an abstract concept to most people because we can’t see it or touch it safely. The simple mechanical system of a bicycle can provide understanding of a common electrical circuit - the differential input. One of the best ways to avoid extraneous noise pickup in… View this story
    Filed in: AVFeatureBlogStudy HallAVInstallationInterconnectSignalSystem

  • Wednesday, September 04, 2013
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    Frederick Ampel 09/04/13 06:16 PM,
    Editor’s Note: Nothing discussed here is true… Right? :>) Check any good handbook of physical constants and you will find that silver has much lower resistivity than copper. In fact, silver has the lowest resistivity of anything that is solid at room temperature, and is thus suitable for making wires. However, the practical solution is to use thicker copper. Still, to avoid the debilitating nature of skin effects, the best solution is to use silver plated copper wire.  Of course,… View this story
    Filed in: AVFeatureBlogAVInterconnect

  • Monday, May 13, 2013
    amplifier damping
    Jerrold Stevens 05/13/13 02:21 PM,
    Ever have one of your friendly amplifier reps walk in your office to present their new mondo-gazillion-watt beast and point out the damping factor spec of greater than a bazillion? Why, gee-whiz! That’s like 10 times more than the other guy! It must be awesome! Right? Well, as we have seen before, it depends on how you are going to use it. Let’s start with defining damping factor and see what it means to us. Amplifier damping factor is defined… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVInterconnectLoudspeakerMeasurementSignalSubwoofer

  • Friday, February 22, 2013
    rigging
    Bill Sapsis 02/22/13 04:05 PM,
    Motorized winches. Lift machines. Line shaft winches. Cable drum winches. Whatever you want to call them, they’re everywhere these days, with more coming. To ride the wave, however, a lot more understanding has to be brought on board. (Get it? Wave…board?) Winches that are designed to lift scenery, lighting or other heavy stuff is what we’re talking about. Please don’t confuse them with machines used for opening and closing curtains on traveler tracks. They are a whole different animal and… View this story
    Filed in: ProductionFeatureStudy HallProductionRiggingStagingConcertEducationStageSystem



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