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Equipment Measurements

March 2000

Dynaudio Audience 40 Loudspeakers: Measurements

PLEASE NOTE: This loudspeaker comes with an optional "port plug" that may be inserted in order to alter the bass performance of the loudspeaker. All standard measurements have been done without the plug. However, we have included additional measurements to indicate measured performance with the plug in place.

All  loudspeaker measurements are performed independently at the National Research Council of Canada. Please click to learn more about how we test loudspeakers there. All measurement data, including graphical information displayed below, is the property of SoundStage! Reproduction in any format is not permitted.

Chart 1 - Frequency Response and Sensitivity

Frequency response, 20Hz - 20kHz (measured @ 2m, plotted @ 1m)
Loudspeaker sensitivity (averaged 300Hz - 3kHz, 2.83V/1m)

Top curve: on-axis response
Middle curve: 15 degrees off-axis response
Bottom curve: 30 degrees off-axis response
Sensitivity: 85dB

Additional Measurement (with port plug)
Frequency response, 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Curve: on-axis response

Chart 2 - Listening Window

Listening Window, 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Response curve is an average of five measurements:
on-axis, 15 degrees left and right off-axis,
15 degrees up and down off-axis

Chart 3 - Total Harmonic Distortion + Noise

THD+N @ 90dB, 50Hz - 10kHz (measured @ 2m)

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

Additional Measurement (with port plug)
THD+N @ 90dB, 50Hz - 10kHz (measured @ 2m)

Top curve: frequency response @ 90dB SPL
Bottom curve: THD+N @ 90dB (50Hz - 10kHz)

THD @ 80dB, 50Hz - 10kHz (measured @ 2m)

Top curve: frequency response @ 80dB SPL
Bottom curve: THD+N @ 80dB (50Hz - 10kHz)

Additional Measurement (with port plug)
THD @ 80dB, 50Hz - 10kHz (measured @ 2m)

Top curve: frequency response @ 80dB SPL
Bottom curve: THD+N @ 80dB (50Hz - 10kHz)

Chart 4 - Impedance Magnitude Variation With Frequency

Impedance curve

Vertical axis: impedance
Horizontal axis: frequency

 

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