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two π tower speaker performance data


Frequency Response

Impedance

Notes:

  • All measurements were done halfspace, with the speaker resting in a cradle and the microphone suspended above it on a boom.
  • No post-processing or smoothing was applied.
  • Measurements were taken at a distance of 10 feet from the baffle and drive voltage was 8.62vrms. This is equivalent to 2.83v/M and 1W/1M values since average impedance is 8Ω.
  • The loudspeaker was driven with a 60Hz sine at 20vrms to pre-heat for 15 minutes immediately before measurement. This was done to bring it to a realistic operating temperature.

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