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November 2005 PMC GB1 Loudspeakers: MeasurementsPLEASE NOTE: Our standard is to provide the THD+N measurement at 90dB with a measuring distance of 2 meters (within the anechoic chamber). Since this speaker produced low distortion levels under those conditions, we have added a second measurement performed at 95dB to give an indication of performance under higher-output conditions. 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 and graphical information displayed below are the property of SoundStage! and Schneider Publishing Inc. Reproduction in any format is not permitted.
Microphone measuring position: between tweeter and midrange Grille: off Sensitivity: 87.0dB (averaged 300Hz-3kHz, 2.83V/1m) Frequency response, 20Hz - 20kHz
(measured @ 2m, plotted @ 1m) Frequency response, 20Hz - 20kHz
(measured @ 2m, plotted @ 1m)
Listening Window,
20Hz - 20kHz (measured @ 2m, plotted @ 1m)
THD+N @ 90dB, 50Hz -
10kHz (measured @ 2m) Additional
Measurement
Impedance curve Electrical phase
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