![]() Equipment Measurements |
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March 2010 Blue Circle Audio BM2 Loudspeakers: MeasurementsAll 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 and graphical information displayed below are the property of SoundStage! and Schneider Publishing Inc. Reproduction in any format is not permitted. Please note: This speaker has a switch to adjusts the output level of the tweeter. All measurements were done with the switch up. An additional on-axis frequency-response measurements is supplied with the switch down.
Microphone measuring position: tweeter axis Grille: off Tweeter switch: up Sensitivity: 83.0dB (averaged 300Hz-3kHz, 2.83V/1m) Frequency response, 20Hz - 20kHz
(measured @ 2m, plotted @ 1m) Frequency response, 20Hz - 20kHz
(measured @ 2m, plotted @ 1m) Additional
Measurement
Listening Window,
20Hz - 20kHz (measured @ 2m, plotted @ 1m)
THD+N @ 90dB, 50Hz -
10kHz (measured @ 2m)
Difference @ 90dB,
50Hz - 20kHz (measured @ 2m)
Impedance curve Electrical phase |
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