For an amateur like me, DACs are mysterious things. After putting together my Monica2 (a battery-powered non-oversampling DAC that uses a single TDA1545A chip) I fed in a 2 kHZ sine wave signal from a test CD. I looked at Monicas analog output, compared with that of my garden-variety Denon deck (see link to picture below). I should have anticipated what I saw, but I admit to being shocked. No way was I going to feed that ugly waveform into my nice, painfully-constructed, 300B monoblocks! Still, whats an honest DAC supposed to do? All it has is the 44.1 kHz data samples; everything else is guesswork and interpolation. For all it knows, the original sound WAS a step function. In any case, I figured that the high frequency components in the steps were probably not going to be amplified in my monoblocks, transmitted through my cables, reproduced by my speakers, or heard by my ears. The final proof, of course, was in the listening. Monica produces a lovely sound, superior to the Denon deck and, IMHO, to the Squeezebox.
http://i47.photobucket.com/albums/f165/moshulu/DSCN0563b.jpg [Top trace: Monica; bottom trace: Denon] -- moshulu ------------------------------------------------------------------------ moshulu's Profile: http://forums.slimdevices.com/member.php?userid=6811 View this thread: http://forums.slimdevices.com/showthread.php?t=26598 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
