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JansZen Loudspeaker zA1.1

Click on links for full set of plots.


Horizontal directivity plots

JansZen Loudspeaker zA1.1 H Contour Plot

Full horizontal contour plot

Vertical directivity plots

JansZen Loudspeaker zA1.1 V Contour Plot

Full vertical contour plot

Directivity index plots

JansZen Loudspeaker zA1.1 Full Sphere DI Plot

Full-sphere directivity index plot

Constant directivity metrics plots

JansZen Loudspeaker zA1.1 Horizontal Polar XCorr Plot

Full horizontal NACC plot


Measurement notes:

  1. Date performed: 12 June 2014
  2. Nominal measurement distance: 1.7 meters
  3. Transducer type: electrostatic; dynamic
  4. Exponential sine sweep settings:
    • Frequency range: 20 Hz to 24 kHz
    • Duration: 5 seconds
  5. Impulse response window settings:
    • Type: Tukey (cosine fade-in, flat, cosine fade-out)
    • Duration: (0.5, 3, 0.5) msec
  6. Frequency resolution: 250 Hz
  7. Spectral smoothing: 1/24th octave
  8. Directivity index averaging range: 500 Hz to 20 kHz
  9. Alignment: The microphone was aligned with the center of the electrostatic panel and the axis of rotation passed through the front surface of the loudspeaker cabinet.