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Equipment Measurements

June 2003

Mirage OMNI 60 Loudspeakers: Measurements

PLEASE NOTE: Because of this speaker's unique dispersion pattern, in addition to our standard set of measurements we have added three additional measurements that show the speaker's output at 60, 120, and 180 degrees off-axis in relation to the on-axis response (i.e., in front of the speaker). The purpose is to show how evenly the speaker disperses the sound from the speaker's front to the rear. To derive this measurement, the on-axis response was subtracted from the off-axis response with the difference being shown.

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

Microphone measuring position: widest portion of WaveGuide, no grille

Sensitivity: 86.0dB (averaged 300Hz-3kHz, 2.83V/1m)

Frequency response, 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

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

Frequency response, 20Hz - 20kHz (measured @ 2m, plotted @ 1m)

Top curve: 45 degrees off-axis response
Middle curve: 60 degrees off-axis response
Bottom curve: 75 degrees off-axis response

Additional Measurement #1
60-degree off-axis response deviation from on-axis response

Plot represents on-axis response subtracted from 60-degree off-axis response

Additional Measurement #2
120-degree off-axis response deviation from on-axis response

Plot represents on-axis response subtracted from 120-degree off-axis response

Additional Measurement #3
180-degree off-axis response deviation from on-axis response

Plot represents on-axis response subtracted from 180-degree off-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)

Chart 4 - Impedance Magnitude Variation and Electrical Phase

Impedance curve

Vertical axis: impedance
Horizontal axis: frequency

Electrical phase

Vertical axis: phase
Horizontal axis: frequency

 

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