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Articles Tagged Power

  • Wednesday, October 09, 2013
    eventide
    PSW Staff 10/09/13 02:18 PM,
    Eventide has announced the immediate availability of the PowerFactor 2 stompbox power solution, co-developed with Cioks of Denmark. PowerFactor 2 builds on Cioks’ 20-plus years of power supply expertise and successful track record of performance and reliability. PowerFactor 2 will simultaneously power up to four Eventide Stompboxes plus up to four additional pedals. Features: • 8 outlets configured in 8 isolated sections with a total output of 1,600mA of current • Custom high-quality European toroidal transformer • 4 powerful DC… View this story
    Filed in: Live SoundRecordingNewsProductInterconnectPowerRemoteSignalStageStudio

  • Monday, October 07, 2013
    amplifiers
    Pat Brown 10/07/13 06:28 PM,
    Take a free lesson in a SynAudCon web-based training course   Last year I was contracted to perform a barrage of measurements to be used to help a theme park select between several amplifier brands. They provided the list of tests, and I provided the instrumentation and the sweat. The amplifiers were similar with regard to their power ratings, but differed in how they performed during the testing. Today’s “smart” amplifiers can behave very differently depending on the test stimulus,… View this story
    Filed in: Live SoundFeatureBlogStudy HallAmplifierInterconnectMeasurementPowerSignal

  • Friday, September 20, 2013
    image
    Mike Sokol 09/20/13 02:30 PM,
    Every year, hundreds of musicians and audio techs suffer serious electrical shocks while on the job, and these incidents have the potential to be fatal. Therefore, it’s imperative to have a basic understanding of electricity to avoid possible electrocution, and further, this knowledge can help protect your equipment from going up in smoke. GFCI? No it’s not the name of an insurance company or a European sports car, GCFI is an abbreviation for Ground Fault Circuit Interrupter or G-F-C-I. They’ve… View this story
    Filed in: AVFeatureBlogStudy HallAVInterconnectPowerSignal

  • Friday, September 13, 2013
    image
    PSW Staff 09/13/13 01:44 PM,
    When church leaders at Silver Spring’s Global Mission church engaged Genesis Technology to design and install a system to replace their out of date audio infrastructure, Michael Yoo, Genesis’ Senior System Engineer, never considered using any amplifier brand apart from Lab.gruppen. “Before starting Genesis, I spent five years as a touring engineer for a gospel group called Jong Ho Park, and we always used Lab.gruppen amps. That’s how I came to know the brand and since then I’ve come to… View this story
    Filed in: Live SoundChurch SoundNewsAmplifierInstallationPowerSound Reinforcement

  • Thursday, August 15, 2013
    crown audio
    Gerald Stanley 08/15/13 03:02 PM,
    Not so long ago – the mid 1960s to be more specific – the most reliable large (for that era) power amplifiers were vacuum tube designs, with a unit providing 50 watts per channel being considered “hefty” and one offering 100 watts per channel downright “industrial.” Solid-state amplifiers were long on promise of being solid, but short on substance. Bad enough that solid-state was unreliable, but it didn’t even put on a good show when it catastrophically failed! A tube… View this story
    Filed in: Live SoundFeatureStudy HallAmplifierManufacturerPowerSound Reinforcement

  • Friday, August 09, 2013
    ac grounding
    Bill Whitlock 08/09/13 04:45 PM,
    While hum and buzz are often blamed on “improper grounding,” actually, this is rarely the case. Properly installed, fully code-compliant AC power distribution systems will develop small, entirely safe voltage differences between the safety grounds of all outlets. These normally insignificant voltages cause problems only when they couple into the signal path at a vulnerable signal interface. Let’s look at why unbalanced interfaces are extremely prone to this coupling and cause noise problems even when no safety ground connections exist.… View this story
    Filed in: AVFeatureBlogStudy HallAVInterconnectPowerSignalSound ReinforcementStudioSystem

  • Monday, August 05, 2013
    image
    PSW Staff 08/05/13 05:48 AM,
    Powersoft has announced that it has reached the milestone of delivering 600 million watts of audio power around the world. Reaching the notable figure has been 15 years in the making, in which time the company has strived to supply very high quality, efficient power amplifiers. “We recently had a count and realized that we were getting close to the 600 million watts mark,” explains Luca Giorgi, Powersoft audio BU director. “We were still missing about 3 million watts, and… View this story
    Filed in: AVLive SoundNewsAmplifierAVManufacturerPowerSound Reinforcement

  • Thursday, July 25, 2013
    extron
    PSW Staff 07/25/13 01:26 PM,
    Extron Electronics has introduced the PC 101, a 1-input, 1-output AC power controller designed to provide remote power management for AV devices. When paired with a controller or control processor equipped with relays, such as the MediaLink MLC 226 IP or IP Link IPL 250, the PC 101 can be configured to turn a device on or off at scheduled times for security and energy savings purposes. It features a contact closure control input and tally output, which can be… View this story
    Filed in: AVLive SoundChurch SoundNewsAVInstallationInterconnectPowerSignal

  • Tuesday, July 09, 2013
    audio impedance
    Pat Brown 07/09/13 10:14 AM,
    The impedance of a loudspeaker characterizes the opposition that it presents to current flowing from the amplifier. The impedance is both complex and frequency-dependent. Complex means that it is not a pure resistance, but a combination of resistance and reactance. As a result, the voltage and current waveforms from the amplifier are not in-phase. Frequency-dependence means that the opposition to current flow varies with the applied frequency – a natural occurrence in a reactive load. The curve in Figure 1… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAnalogAVInterconnectLoudspeakerMeasurementPowerSignal

  • Thursday, June 20, 2013
    av systems
    PSW Staff 06/20/13 05:56 PM,
    Electric power companies have a good idea that has been applied to audio engineering. When they run power through miles of cable, they minimize resistive power loss by running the power as high voltage and low current. To do this, they use a step-up transformer at the power station and a step-down transformer at each customer’s location. This reduces power loss due to the I2R heating of the power cables. The same solution can be applied to audio communications in… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVInstallationInterconnectLoudspeakerPowerSystem





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