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    External sound reinforcement articles 


    External sound reinforcement articles:


    • Phase alignment between subwoofers and mid-high cabinets (PDF, 2,4 Mb)
      Article by Joan La Roda, courtesy of DAS Audio

    • Setting up a cardioid subwoofer system
      (PDF, 2,4 Mb)
      Article by Joan La Roda, courtesy of DAS Audio

    • A game of numbers. Understanding directivity specifications
      (PDF, 2,3 Mb)
      Article by José (Joe) Brusi, courtesy of Brusi Acoustics

    Frequency response templates 


    The illustrations below are templates for measuring frequency response. The first is useful for third octave band analysis (old school 1/3rd octave "RTA"), the second being useful for full resolution analysis. 25 and 50 dB ranges are provided ...
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  • News

    Audio-Technica unveils new ES945 and ES947 boundary microphone variations

    Stow, OH, February 22, 2021 — Audio-Technica announces several new variations of its ES945 Omnidirectional Condenser Boundary Microphone and ES947 Cardioid Condenser Boundary Microphone. All models are intended for surface flush-mount installation and include Audio-Technica’s... Read more

    X MAX multi-purpose speakers from RCF now shipping

    RCF launched MAX series yesterday, a family of full-range passive two-way multi-purpose speakers. X MAX series builds on RCF's MAX series to create a range... Read more

    Powersoft extends free warranty to five years on rack amplifiers

    Italian audio manufacturer Powersoft has announced a further 12-month warranty on their rack amplifiers for all customers who register their product for free to MyPowersoft, Powersoft’s online... Read more

    The OCA Alliance demonstrates lowest overhead control solution

    In a landmark demonstration, OCA Alliance member, DeusO GmbH, has created an AES70 control implementation that requires minimal processing and can be implemented in as little as a 1kB solution. This... Read more
  • Recent articles

    Intelligibility and its measurement

    1. What is intelligibility?

    The state or quality of being understood. It can apply to an idea or a writing, but in our context it relates to the spoken word and, less commonly, to music.... Read more

    Choosing loudspeaker cable

    The importance of cables for the connection between the amplifier and the speaker is often controversial. Hi-fi aficionados spend fortunes on cables that promise spectacular results, and our short auditory memory and subjectivity lead many to confirm these improvements in their systems.... Read more

    Constant voltage systems (70V, 100V lines)

    Constant voltage, high impedance or line transformer systems are often a somewhat confusing concept for professionals used to rock and roll. They are actually very simple to design, among other things because they are intended to be installed by electricians and the like, with little experience in sound systems. In this article we will try to clarify the simple concepts needed to understand this type of system.... Read more
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