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Paradigm Reference Studio 20 v.4 Speaker System:
Sensitivity: 88 dB from 500 Hz to 2 kHz This graph shows the quasi-anechoic (employing close-miking of the woofer) frequency response of the Studio 20 v.4 (purple trace). The passive loudspeaker was measured with its grille at a distance of 1 meter with a 2.83-volt input. The Studio 20 v.4's listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +1.82/–1.13 decibels from 200 hertz to 10 kilohertz. An average of axial and +/–15-degree horizontal responses measures +1.86/–1.30 dB from 200 Hz to 10 kHz. The –3-dB point is at 59 Hz, and the –6-dB point is at 47 Hz. Impedance reaches a minimum of 4.18 ohms at 174 Hz and a phase angle of –41.77 degrees at 98 Hz.—MJP
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