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In Reply to: RE: What is missing in measurements, so there's lack of correlation between them and sound quality? posted by carcass93 on October 27, 2009 at 09:49:33
"Almost the same goes for Benchmark vs. Ayre QB-9 - comparable measurement"err...no. the high FR measurements are not comparable at all.
http://stereophile.com/digitalprocessors/ayre_acoustics_qb-9_usb_dac/index6.html
http://www.stereophile.com/digitalprocessors/108bench/index4.html
look at those measurements again, even in measure mode, the QB-9 is 1.7dB down at 20kHz in comparison to the Benchmark's 0.2dB. In Listen mode the rolloff starts earlier and looks likes its greater than -3.5dB @20KHz, that's a dramatic difference. Finally, in fairness to Ayre, the measured performance of it's USB input is very good.
Music making the painting, recording it the photograph
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