foxesden wrote: > Hi > > Just spent the day measuring my DAC as I thought it was losing bass. > > I was using rightmark, and only wanted to confirm whether the frequency > drop I was hearing could be measured - it could. But, I was surprised at > how bad the noise etc was. So I tried measuring my other main DAC April > Music Eximus; and this too didn't measure too well. > > So I suspected my USB soundcard ESI U24XL wasn't too good; and bunged > the intona into the chain to see if it made a difference. Here are the > results > > > > 24128 > > This result was entirely repeatable. > > I suspect that it is because the old ESI device which is quite old has a > ropey USB interface. > > Jonathan
Interesting... Wondering if you'd get better results with that ESI USB ADC in 24-bit recording mode. Looks like there's some noise there, but you mentioned bass loss issues. Did you actually find frequency response differences? Bottom line is that it looks like you need a better ADC than the U24XL which I think is only 1/2 the price of the Intona USB isolator! The other question is what computer / laptop are you connecting the ADC to... Archimago's Musings: (archimago.blogspot.com) A 'more objective' audiophile blog. ------------------------------------------------------------------------ Archimago's Profile: http://forums.slimdevices.com/member.php?userid=2207 View this thread: http://forums.slimdevices.com/showthread.php?t=108347 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
