"Geoff Wood" -nospam wrote in message


"Arny Krueger" wrote in message

That is in fact what I meant. In order to reproduce the "stairstep"
samples of a 44.1 KHz digital audio signal, reasonably flat response
to no less than 132.3 KHz would be required. *lesser* (i.e.,
typical) speakers will strongly tend to blend the samples together.

... in which case your D-A is severely broken, unless you've
intentionally disabled the reconstruction filter !

In this day and age, the reconstruction filter is so tightly integrated into
the DAC chip that disabling it is not an option. I took this to be a
philosophical, not a practical discussion. There actually have been PC sound
cards that lacked a brick wall filter, AFAIK the SoundBlaster Pro was one
such card.