• 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 on the left hand side (which corresponds to 1 or 2 dB per horizontal division). The illustrations have been re-scaled to fit on the screen; the originals (which can be seen by clicking on the image, though some browsers will resize it to fit the screen and show it somewhat blurry; if that is the case clicking on the image would normally in its original form) are high resolution. To download, just place your cursor on top of the image, right-click and select "Save image as".

    A example of a filled template for the 1/3rd octave template can also be seen. Only filled down to 31 Hz, where response falls approximately 15 dB below the average response level. Avoid driving the system too hard with bands outside the system's main bandwidth.

    1/3rd octave:


    Left-click to see the high resolution image / Right-click and select "Save image as" to download



    Filled template example:


    Ejemplo de plantilla rellena / Example of filled template



    Full reso:


    Left-click to see the high resolution image / Right-click and select "Save image as" to download

  • Ad

  • News

    DAS launches SARA compact line array

    DAS Audio launched last week at ISE2023 its compact line array system, SARA, the little brother of LARA (both being part of the ARA series, like the coming mid-size format MARA) presented at PLS last year. Unlike LATA, it is not cardioid, although its bass complement, SARA-SUB, is.

    SARA is a symmetrical system with 3000Wrms of amplification, achieving a nominal maximum SPL of 139 dB at 1m, being intended for medium sized events and installations.

    SARA consists of 2 x 8″ loudspeakers (specifically, LARA's side speakers) custom designed for mid and low frequencies... Read more

    Audiofocus launches Cyris CX6 compact passive loudpeaker

    Audiofocus has launched the passive Cyris CX6 coaxial 6-inch loudspeaker and its companion powered C210S low-profile dual 10-inch subwoofer.

    With a nominal peak SPL of 122dB, the Cyris CX6 targets short-throw applications in fixed installations or live events, and can serve as a fill cabinet in larger performance, conference and worship settings. Its cardioid design [E.N. - this is a passive cardioid using... Read more

    Martin Audio announces addition to Torus Series


    Back in 2021, in the midst of the pandemic, Martin Audio unveiled their first constant curvature loudspeaker array, TORUS, featuring two variants T1215 and T1230, which reportedly outstripped the company’s initial projections... Read more

    Lavoce introducing new components at ISE 2023

    Lavoce Italiana is introducing a ferrite common HF/LF magnet coaxial as well as their first ever annular diaphragm HF compression driver at ISE 2023.

    DN10.143 and DF10.143 compression drivers were created by optimising the complex methodology of annular... 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
  • PAcalculate app