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Originally Posted by Billfitz
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Unfortunately that affects the sound, at least according to one review:
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The frequency response of the Boss converter is perfectly linear from 20kHz to around 100Hz with a very gradual fall off, and 50Hz being only 4% down in output, 30Hz 7-8% down, and 20Hz about 50% down compared to the (100%) 20kHz to 100Hz range. This diminishment is not noticeable with the Dynaudio speakers, but the converter is less suited below 30Hz.
The sensitivity adjustment of each output is through a 3/4 turn of a set-screw, clockwise for higher gain. I used a sine-wave generator and an oscilloscope + a multimeter for the measurements and settings, but a 1volt 50 or 60Hz signal plus an ac multimeter with a 1000mV range would suffice for setting the sensitivity, because the setting at 50Hz is valid throughout the frequency range.
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